Chemistry Newsletter - 06/05/2000

 

University of Wisconsin-Madison

Chemistry Department Newsletter


XXXV No. 22 June 5th, 2000

 

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Congratulations Sarah Coulter

Sarah Coulter (a grad student in Hamers group) has just learned that she is the recipient of a Graduate Fellowship from the American Vacuum Society. The fellowship consists of a cash prize of $1,000 , plus travel expenses to the AVS National Meeting in Boston in October. Congratulations Sarah!!

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A web version of the CRC Handbook is now available via the Electronic Library. You will find it listed under "Reference Databases" at the library home page: http://www.library.wisc.edu . Alternatively, you can try the following URL: http://www.knovel.com/knovel/Databook/default.htm?WCI=BrowseBooks&WCE=34&WCU=1 . Please check it out. According to the preface, the tables in the electronic version have data that could not be included in the print. Also, the search features (based on my limited experience thus far) seem quite useful.

Kendall Rouse, Head, Chemistry Library.

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ATTENTION GRADUATE STUDENTS

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IMPORTANT DATES:

MINOR AGREEMENT FORMS: The Graduate School requires that the minor program be outlined in an agreement which is approved by the Department no later than halfway through completion of the sequence minor courses. The minor requirement is normally completed by the second year of Graduate School. Minor Agreement forms are available in Room 1221.

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SEMINARS

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None Available for this Newsletter

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Recent Publications

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Nelson KJ; McGaff RW; Powell DR.

A tetranuclear dianion consisting of linked dirhenate units arranged in an infinite one-dimensional chain through ligand-ligand hydrogen bonding in the solid state.

INORGANICA CHIMICA ACTA 2000, Vol 304, Iss 1, pp 130-133.

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Jacobsen JJ; Bain GA; Bruce K; Moore JW.

Chemistry comes alive! Volume 4 - Abstract of special issue 25 on CD-ROM.

JOURNAL OF CHEMICAL EDUCATION 2000, Vol 77, Iss 6, pp 799-800.

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Christianson LA; Lucero MJ; Appella DH; Klein DA; Gellman SH.

Improved treatment of cyclic beta-amino acids and successful prediction of beta-Peptide secondary structure using a modified force field: AMBER*C.

JOURNAL OF COMPUTATIONAL CHEMISTRY 2000, Vol 21, Iss 9, pp 763-773.

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Vedejs E; Kruger AW; Lee N; Sakata ST; Stec M; Suna E.

Enantioselective enolate protonation with chiral anilines: Scope, structural requirements, and mechanistic implications.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 2000, Vol 122, Iss 19, pp 4602-4607.

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Wang XF; Espinosa JF; Gellman SH.

12-helix formation in aqueous solution with short beta-peptides containing pyrrolidine-based residues.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 2000, Vol 122, Iss 19, pp 4821-4822.

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Casey CP; Klein JF; Pagan MA.

Kinetics and thermodynamics of alkene complexation in d(0) metal-alkyl-alkene complexes.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 2000, Vol 122, Iss 18, pp 4320-4330.

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Burke SD; Zhao Q; Schuster MC; Kiessling LL.

Synergistic formation of soluble lectin clusters by a templated multivalent saccharide ligand.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 2000, Vol 122, Iss 18, pp 4518-4519.

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Fujii T; Tanaka N; Tai H; Obara S; Ellis AB.

Influence of the naphthalene derivative on the luminescence properties of CdS particles prepared by the sol-gel method.

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2000, Vol 73, Iss 4, pp 809-813.

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Yethiraj A.

Integral equation theory for the surface segregation from blends of linear and star polymers.

COMPUTATIONAL AND THEORETICAL POLYMER SCIENCE 2000, Vol 10, Iss 1-2, pp 115-123.

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Zhao W; Murdoch KM; Condon NJ; Besemann DM; Meyer KA; Chen PC; Hamilton JP; Zilian A; Labuda MJ; Thompson DE; Carlson RJ; Hurst GB; Riebe MT; Steehler JK; Wright JC.

Comparisons between 2D doubly vibrationally enhanced four wave mixing and site selective spectroscopy.

JOURNAL OF LUMINESCENCE 2000, Vol 87-9, pp 90-95.

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Chung YJ; Huck BR; Christianson LA; Stanger HE; Krauthauser S; Powell DR; Gellman SH.

Stereochemical control of hairpin formation in beta-peptides containing dinipecotic acid reverse turn segments.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 2000, Vol 122, Iss 17, pp 3995-4004.

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Copyright © 2000 Institute for Scientific Information

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For Industrial Positions, see the Chemistry Career Services Newsletter at:

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http://www.chem.wisc.edu/placement/7news.html

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Reminder to Register Online for the Reaction Mechanisms Conference.

June 24-29, 2000; Madison WI.

Web address: http://www.chem.wisc.edu/~mcmahon/mechconf/ .

This is the equivalent of a Gordon Research Conference - right in our own back yard! The Conference includes a diverse range of topics in mechanistic chemistry. Take advantage of this terrific opportunity. Students are encouraged to register and to submit a poster on their research. See website for details. Deadline for poster submission: June 10th.

Symposium Topics and Speakers:

Saturday, June 24

Electron Transfer: Theoretical and experimental efforts to understand and control intermolecular and intramolecular electron transfer.

Jan Verhoeven University of Amsterdam - Bernd Giese University of Basel - Samir Farid Eastman Kodak Company - Sharon Hammes-Schiffer Pennsylvania State University

Sunday, June 25

DNA and RNA Chemistry: Modern mechanistic questions in reactions involving DNA.

Cynthia Burrows University of Utah - Marc Greenberg Colorado State University - David Bartel MIT.

Computational Chemistry: Density Functional Theory - its uses and abuses in the study of reaction mechanisms. Kendall Houk UCLA - Christopher Cramer University of Minnesota - Thomas Bally University of Fribourg - Ernest Davidson Indiana University - John Stanton University of Texas, Austin.

Monday, June 26

Squires Symposium: A symposium on gas-phase ion chemistry, in honor of the memory of the late Robert R. Squires of Purdue University.

Charles DePuy University of Colorado - Paul Wenthold Purdue University - Hilkka Kenttäämaa Purdue University - Brian Hill Purdue University.

Poster Session:

Tuesday, June 27

Carbene Solvent Effects: Understanding the effect of solvents on the properties and reactions of carbenes.

Matthew Platz The Ohio State University - Robert Moss Rutgers University - Christopher Hadad The Ohio State University - Miguel Garcia-Garibay UCLA.

Biochemical Mechanisms: Fundamental mechanistic issues of relevance to biological processes.

Kevin Peters University of Colorado - Jiali Gao University of Minnesota - Laura Kiessling University of Wisconsin, Madison - Martin Tanner University of British Columbia.

Wednesday, June 28

Organometallic Chemistry: Mechanisms of reactions involving both main-group and transition metals.

David Collum Cornell University - Ayusman Sen Pennsylvania State University - James Mayer University of Washington - Jik Chin McGill University.

Conference Banquet: Conjectures and Refutations in Mechanistic Chemistry: The Illogic of Scientific Discovery.

Jerome Berson Yale University.

Thursday, June 29.

Nitrenium Ions: Direct spectroscopic study, theory, and solution-phase reactions of nitrenium ions.

Daniel Falvey University of Maryland - John Toscano Johns Hopkins University - Michael Novak Miami University of Ohio - Robert McClelland University of Toronto

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Travel Awards

Sponsor: American Chemical Society (ACS) - Women Chemists Committee.

Deadline: September 15, 2000 - February 15, 2001.

URL to view this opportunity: http://fundingopps2.cos.com/cgi-bin/getRec?id=51141 .

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Women Chemists Committee of the American Chemical Society

is pleased to Call for Applications for Travel Awards

For post-doctoral, graduate, and undergraduate- women to make their first research presentation at a national meeting. Sponsored by: Eli Lilly & Company. For more information and an application form, please contact your department chair or http://www.membership.acs.org/W/WCC/ or Cheryl Brown, 800/227-5558 ext. 6022. E-mail: c_brown@acs.org , American Chemical Society, 1155 Sixteenth St. NW; Washington, DC 20036. Deadlines for receipt of applications for 2001 meetings:

September 15, 2000 - Meetings between January 1 & June 30, 2001,

February 15, 2001 - Meetings between July 1 & December 31, 2001.

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FACULTY POSITIONS/TEMPORARY FACULTY/ACADEMIC POSITIONS

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UW-Whitewater. Re-opening Position. Academic Staff. Rank of Lecturer. Starting Date: August 27, 2000. Non tenure-track one year half - time appointment. Subject to renewal contingent upon performance. Minimum of M.S. in Chemistry or equivalent preparation. Applications from any area of Chemistry. Expertise in the instructional use of computers is expected. Salary is competitive. Dependent upon qualifications and experience. The position will primarily involve instructional responsibilities in the freshman laboratories. Average of 12 contact hours per week. Applicants will be expected to contribute to course development. Credentials should be submitted to: Dr. Philip T. Johns, Chair, Department of Chemistry, UW-Whitewater, Whitewater, WI 53190, email - johnsp@uwwvax.uww.edu - (inquiries only, no applications), web: http://www.uww.edu/admin/employmt/employ.htm . Credentials must include a letter of application, vita, an educational summary, all relevant professional experience (including teaching, postdoctoral, industrial, etc.), copies of graduate and undergraduate transcripts, and three current letters of recommendation. (Transcript photocopies are acceptable for initial application.) Applicants must initiate the submission of recommendation letters. Unless confidentiality is requested in writing, lists of applicants must be released on request. Finalists cannot be guaranteed confidentiality. Deadline: June 4, 2000. Incomplete credential files cannot be considered.

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Marquette University. Full-Time, 10-Month Position). Organic Laboratory Supervisor. Manage organic teaching assistants, supervise undergraduate organic laboratories and usage of associated instruments and computers, interact with faculty in development of laboratory experiments, and present lectures for some laboratory sections. Master's degree in organic chemistry is desired with experience as an organic teaching assistant. Position available Fall 2000. Applications will be considered until the position is filled. Interested individuals please send a letter of interest, resume, and arrange for two letters of recommendation to: Chair of the OLS Search Committee, Department of Chemistry, Marquette University, P.O. Box 1881, Milwaukee, W1 53201-1881, Phone: (414) 288-7239, Fax:(414) 288-7066.

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Angelo State University. Visiting Assistant Professor of Chemistry. One Year Appointment, 2000-2001 Academic Year. JOB NUMBER: 990402. Date of appointment: August 25, 2000. Teach senior-level chemistry courses in speciality, as well as General chemistry in Bachelor of Science in Chemistry and Biochemistry program. Academic: Ph.D. in Chemistry. Experience: Previous teaching experience at the university level is preferred. Special Skills or ability to create an atmosphere conducive to leaming. Ability and desire to communicate tactfully with students, faculty, and the public. Ability to communicate effectively with undergraduate students. Candidates should be dedicated to excellence in teaching and have a strong commitment to high academic and professional standards. APPLY TO: Submit (1) a letter of application; (2) a current resume; (3) transcripts; and (4)the names, addresses and telephone numbers of three professional references. Official transcripts will be required of applicants selected for interview. Mail to: George Shankle, Interim Head, Department of Chemistry & Biochemistry, Angelo State University, P.O. Box 10892, San Angelo, TX 76909, Phone: (915)942-2181, FAX: (915)942-2184.

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Angelo State University. Visiting Assistant Professor of Chemistry. One Year Appointment, 2000- 2001 Academic Year. JOB NUMBER: 990352. Date of appointment: August 25, 2000. Teach chemistry courses in speciality, as well as General chemistry in Bachelor of Science in Chemistry and Biochemistry program. Academic: Ph.D. in Chemistry. Experience: Previous teaching experience at the university level is preferred. Training is organic chemistry desirable. Special skills or ability to create an atmosphere conducive to leaming. Ability and desire to communicate tactfully with students, faculty, and the public. Candidates should be dedicated to excellence in teaching and have a strong commitment to high academic and professional standards. APPLY TO: Submit (1) a letter of application; (2) a current resume; (3) transcripts; and (4)the names, addresses and telephone numbers of three professional references. Official transcripts will be required of applicants selected for interview. Mail to: George Shankle, Interim Head, Department of Chemistry & Biochemistry, Angelo State University, P.O. Box 10892, San Angelo, TX 76909, Phone: (915)942-2181, FAX: (915)942-2184.

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University of Wisconsin-Madison. Assistant Director - Biotechnology Center. B.A. or B.S. in the biological sciences or a related field; Master's degree in same area preferred. Minimum of 4 years of substantial involvement in research or sponsored programs administration. At least 4 years management/supervisory experience required, preferably in a research department setting. Grantsmanship experience necessary. Budget experience required. Knowledge of University administrative policies and procedures a plus. Excellent communication and organizational skills a must. Actively participate in strategic planning initiatives and policy development for the UWBC to achieve its three major functions. Direct day-to-day management and implementation of policy. Help organize and participate in program and planning activities; (50%). Responsible for the administrative, financial, and personnel management of the UWBC. (25%) Plan, direct, coordinate, control, monitor, and evaluate the administrative and financial operations and activities; Oversee financial management of approximately $8 million in state, federal, and private funding annually; Provide leadership and operational expertise for the design, integration, and maintenance of cost accounting systems for core facilities and fiscal management of grants and contracts; Plan and supervise the annual state budget building process; Responsible for human resources development and management for a combined total of approximately one hundred faculty & staff; Oversee and direct the physical plant operations of the Biotechnology building. Serve as chief administrative and financial advisor to the director, faculty, and staff. Ensure that they are appraised of and fully utilize potential funding resources and research collaboration opportunities. Drawing on knowledge of research and sponsored administration, assess and appraise faculty and other researchers of potential conflicts of interest in acceptance of funding and innovative collaborative research projects. Oversee extramural pre-award activities; (20%). Analyze, develop, and oversee the implementation of revenue enhancing strategies and initiatives, and the exploration and development of new department funding sources such as fund raising. (5%). Appointment type: Limited Appointees. Department(s): Grad / Biotechnolgy Center. This is a renewable appointment. Anticipated begin date: June 10, 2000. How to apply: Send resume and cover letter referring to Position Vacancy Listing # 37258 to: DR BRIAN KAY, C/O JENNY HERGENROTHER, UW BIOTECHNOLOGY CENTER, 425 HENRY MALL, MADISON WI 53706-1580, Phone: 608-265-5478, Fax:608-262-6748, E-mail: hergenrother@biotech.wisc.edu .

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Francis Marion University. Assistant/Associate Professor of Astronomy, Director of Planetarium, and Coordinator of Astronomy in the Department of Chemistry and Physics - 00-31. Tenure-track: Position No. 00-31. Ph.D. and teaching experience required. Successful candidate should have a strong interest in undergraduate instruction in astronomy, including undergraduate research, scholarly activity, and involvement in the continued development of a quality astronomy program. Teaching load would be 9-12 contact hours per week of undergraduate astronomy lectures and laboratories. Public outreach activities through the planetarium and observatory will also be required. The award winning website for the FMU Planetarium can be viewed at http://swampfox.fmarion.edu/web/planet/planet.html . The Department offers Bachelor of Science degrees in Chemistry, Computational Physics, and Health Physics and also administers several cooperative programs in engineering and engineering technology. Position to begin August 2000. Review of applications will begin immediately and continue until the position is filled. Applicants should send a letter of interest referencing position #, curriculum vitae, copies of all transcripts (official ones will be requested of successful candidate), and three current letters of recommendation to: Dr. David M. Peterson, Department of Chemistry and Physics, Francis Marion University, PO Box 100547, Florence, SC 29501-0547.

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Itasca Community College, Grand Rapids, Minnesota, seeks applicants for a faculty position in Computer Technology (WebMaster Program). Instructor (Computer Technology-WebMaster Program). Full-time Unlimited position (with two-year mandatory probationary period). Starting date is August 22, 2000 (negotiable depending upon applicant). The position carries a full benefit package, Reports to Dean of Academic Affairs. Members of Itasca's faculty should be exceptional educators, committed to excellence in teaching and learning. Candidates must 1) possess strong discipline expertise; 2) be student centered; 3) be enthusiastic about the teaching and teaming process, 4) be practitioners of active and experiential, learning strategies, 5) demonstrate an understanding of and a commitment to the assessment of student academic achievement; and 6) be willing to explore the use of technology to enhance teaching and student teaming. Faculty members are also expected to participate in the larger college community through a variety of activities (e.g., curriculum development, service on committees, student life, etc.). Specific Duties: 1) Teach variety of computer-related and/or web-related courses required for ICC's WebMaster Program leading to the AAS degree. 2) Coordinate WebMaster Program, including internship supervision and job placement. 3) Promote and recruit students for ICC's WebMaster Program. 4) Review and revise WebMaster curriculum as needed. Bachelor's degree in computei science; or bachelor's degree with 30 quarter credits in computer science; and one year of relevant work experience at the professional level. Application Requirements: A complete application must include the following: A letter expressig interest in and qualifications for the position. A current resume, including a list of references. A minimum, of three (3) reference letters. A statement of applicant's teaching philosophy, especially as it relates to a community college setting. Copies of academic transcripts. Official transcripts will be required from the successful candidate prior to appointment. All application materials should be sent to: Ms. Cricket Guyer, WebMaster Search Committee, Itasca Community College, 1851 E, Hwy. 169, Grand Rapids-MN 55744. Applicants with disabilities who need accommodations to. fulfill the application requirements for this position should contact: Ann Vidovic, Itasca Community College, 1851 E., Hwy. 169, Grand Rapids MN 55744, Ph: (218) 3274167 (Voice/TTY); FAX: (218) 218-327-4299. Email: avidovic@jt.cc.mn.us . Visit our web site at http://www.it.cc.mn.us to learn more about Itasca and the Grand Rapids community.

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The Journal of Chemical Education seeks a person to serve as Editorial Assistant. This full time position requires a bachelors degree in chemistry or a related field and is an academic staff position. Full details are given at http://www.ohr.wisc.edu/pvl/pv37388.html .

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EMPLOYMENT OPPORTUNITIES

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Network Science, a non-profit 501(c)(3) corporation is working with several major pharmaceutical companies to promote an internship and post-doctoral program within the industry. Some background on the project follows: On March 2, as a part of the 2000 Charleston Conference, the officers of Network Science met with research managers from a number of major pharmaceutical companies to discuss the difficulty in locating entry level Ph.D.s who have a thorough understanding of the requirements of industrial research and are thus more productive in the early stages of their careers. After discussing alternatives to augment this lack of formal training, the group identified the use of internship programs for graduate students and industrial post-doctoral fellowships for new graduates as a possible method to assist students in understanding the skills that industrial research requires beyond formal academic training. As a result of this meeting, Network Science Corporation was asked to utilize its industry experience and network of industry and academic contacts to actively promote internship and post-doctoral fellowship programs for discovery research. The company, with additional support from Chemical Computing Group, plans to create a single reference site which will link graduate and post-graduate students interested in augmenting their traditional academic training with projects in an industrial setting. It is felt that disseminating these applied programs more widely will assist young scientists with making a rapid transition from graduate schools to technical careers. This is for Graduate students who would benefit from a three month internship in industry, or students interested in an industrial post-doctoral fellowship. Please contact: Merry Ambos e-mail: netsci@awod.com , Molecular Solutions/Network Science, Phone: 843-886-8775, 843-886-5924 (FAX), web: http://www.netsci.org .

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Two Positions Available immediately. Student hourly, $9/hr, 30-40 hrs/week for 6 months. To provide technical assistance to scientists who have developed a new technology for papermaking called biopulping. In this technology, lignocellulosic materials are treated with natural wood decay fungi prior to pulping. This environmentally friendly technology saves electrical energy and improves paper quality during papermaking. The technical and economical feasibility of this technology has been established for mechanical pulping. The scientists are now extending the use of fungal pretreatment of wood chips for chemical pulping. Incumbent assists in chemical pulping of wood chips; prepare and standardize stock chemical solutions, Analyze pulp samples for yield and chemical composition; analyze pulping liquors in accordance with test procedures; refine and bleach pulp samples. Other duties as required. Candidate must have 6 months of general experience and an additional 6 months of specialized experience or have completed two years of study beyond high school that included at least 12 semester hours in any combination of scientific or technical courses. Candidate with strong analytical chemistry background will be preferred.Combinations of education and experience will be evaluated. USDA Forest Service, Forest Products Laboratory, Madison, WI. Contact: Masood Akhtar (231-9484), University of Wisconsin, Biotechnology Center and Forest Products Laboratory. Please email your resume and name of three referees at: makhtar@facstaff.wisc.edu .

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POSTDOCTORAL POSITION AND/OR JOBS

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Postdoctoral Position Available: Organic Chemistry. University of Maryland seek applications from synthetic organic chemists who wish to apply their talents in the areas of self-assembly, molecular recognition, and bioorganic chemistry. The postdoctoral fellow will participate in an NIH funded project that targets the synthesis and characterization of novel self-complementary facial amphiphiles that undergo well defined self-association processes in aqueous solution. Applications from scientists with experience in self-assembly, molecular recognition, or bioorganic chemistry are also encouraged. The initial appointment is for 1 year, but a second year is possible upon mutual consent. Candidates should send a CV and three letters of recommendation to: Dr. Lyle Isaacs, Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742; E-mail: LI8@umail.umd.edu . For more information: http://www.chem.umd.edu/faculty/organic/isaacs/isaacs.htm .

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Oak Ridge National Laboratory has an immediate opening for a postdoctoral candidate to perform synthetic organic chemistry in support of molecular recognition research in the Chemical Separations Group. The successful candidate will have the opportunity to conduct research in one of a wide variety of research areas currently under investigation. Research in our group focuses on crown compounds and related selective extractants for ions and ion pairs in solvent extraction and ion exchange. The fundamental issue being investigated is the relationship between host structure and both the efficiency and selectivity of extraction for specific ions and ion pairs. This issue is often addressed in the context of the influence of the solvent matrix. Additional information on our group's interests can be obtained through our website at http://www.ornl.gov/csg . Experience in chemical synthesis is required, especially as related to synthesis of crown ether and calixarene molecules. A willingness to prepare known compounds for further study is also vital. Excellent communication skills are required, as we operate in a highly collaborative environment, and presentation and publication of scientific results at scientific meetings and in peer-reviewed journals is expected. Applicants should have completed (within the last 3 years) or soon expect to complete a doctoral program in Chemistry. Successful applicants who are not currently U.S. citizens or Permanent Residents must be able to obtain the appropriate work authorization prior to their hire-in date. Annual starting salaries for first-year postdocs in Chemistry are approximately $36,000. This appointment will be for one year and can be renewed for up to two additional years. It is offered through the ORNL Postdoctoral Research Associates Program which is jointly administered by ORNL's Office of University and Science Education and the Oak Ridge Institute for Science and Education. Send a letter and resume to: Oak Ridge National Laboratory, Bruce A. Moyer, 4500S, MS-6119, P.O. Box 2008, Oak Ridge, TN 37831-6119, Phone: 865-574-6718, e-mail: moyerba@oml.gov . We wish to fill this position as soon as possible and will need to proceed quickly in order to complete the required application and selection procedures. An application for this position and a complete description of the ORNL Postdoctoral Research Associates Program are available at: http://www.orau.aov/orise/edu/postgrad/ortilpdoc.litin or by contacting Bonnie DeJarnette at 423 -241-53 86 or dejarneb@orau.gov (reference #ORNL00- 12). However, a full application is not required at this time; a letter and resume directed to me will be adequate.

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Indiana University. A postdoc appointment for a recent PhD is available with the experimental chemical physics group of C. S. Parmenter. The research concerns vibrational and rotational dynamics in gas phase molecules with six to thirty modes. Two studies focusing on collisional energy transfer will receive much attention in the next few years. One is designed to reveal the steric effects that underlie these collisional interactions. While predicted by theory to be large, steric influences on inelastic collisions with polyatomics have never before been experimentally accessible. We are using crossed molecular beams to give state-to-state resolution of single collision rotational and rovibrational energy transfer channels in planar or near-planar symmetric top molecules. A laser pumps an initial vibrational level in an electronically excited state with selected angular momentum around the top axis. To achieve control over the collision geometry, molecules are aligned using the laser polarization as guided by recent theory. The alignment establishes bias toward edge-on or broadside encounters. Dispersed fluorescence is used to monitor all important single collision energy transfer channels. The method yields relative cross sections for the competition among dozens of individual rotational and rovibrational channels that will produce a comprehensive picture of steric influences. Other efforts are directed at the collisional activation/deactivation of large molecules with the high vibrational energy needed for unimolecular reaction. Despite years of study, one basic measurement remains elusive, namely the absolute total cross section for energy transfer into the neighboring vibrational field for these highly excited molecules. We have developed a special experimental approach to produce these measurements. With a 300K bulb experiment that also involves laser pumping and dispersed fluorescence detection approach, we are using a new twist on our oxygen fluorescence quenching method (chemical timing) that has long been associated with collision-free vibrational dynamics. The method is adapted to a collisional environment that produces absolute cross sections for vibrationally excited molecules with state densities of thousands of levels per wave number. Applicants should submit a CV with a publication and also arrange to have letters of recommendation sent on their behalf to: Prof Charles S. Parmenter, Department of Chemistry, Indiana University, Bloomington, IN 47405, USA, Email: parment@indiana.edu , Office: (812) 855-3522, Fax:(812) 855-8300.

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Dreyfus Postdoctoral Scholar in Environmental Chemistry at the California Institute of Technology. A postdoctoral fellowship is available at the California Institute of Technology in the field of Environmental Chemistry. The position is open to a recent physical chemistry PhD with a strong background in fundamental physical chemistry, e.g., reaction dynamics, laser spectroscopy, scanning probe microscopy, aerosol chemistry, and gas phase kinetics, who is interested in applying their skills in environmental chemistry. Research opportunities in the laboratories of Professors Janet Hering, Mitchio Okumura, and Paul Wennberg span the departments of Chemistry, Geochemistry, and Environmental Engineering and Science. Research areas include laboratory experiments on the kinetics of radical-radical reactions and photochemistry, field measurements of nitric acid aerosols, and mass spectrometric studies of aquatic chemistry, and scanning probe microscopy of mineral weathering. The position provides the postdoctoral fellow extensive latitude in developing a research program among the three groups, as well as opportunities to broaden her or his background in environmental science. Candidates possessing creativity and independence as well as a strong experimental background in fundamental chemistry are sought. Contact: Ms. Lena Lenore, Chemistry Department, MC 127-72, California Institute of Technology, Pasadena CA 91125 USA. E-mail: lenore@its.caltech.edu .

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United States Environmental Protection Agency, National Health and Environmental effects research laboratory, Mid-Continent Ecology division. USEPA would like to alert you that we are recruiting post-doctoral positions at the USEPA Mid-Continent Ecology Division. These are Federal term appointments, full-time, not-to-exceed four years. Six position descriptions for the term appointments are enclosed. Through this recruitment we intend to hire the two most qualified candidates.The Division employs over 90 federal scientists including ecologists, toxicologists, biologists and chemists focusing on research issues in ecotoxicology and freshwater ecology that will help reduce the scientific uncertainties in ecological risk assessments and environmental monitoring. Instructions on how to apply for these positions are as follows: The candidates must submit their curriculum vitae (CV), letter of recommendation from their senior research advisor or other comparable official and a letter indicating their research interest to: Ms. Karen Dean, ATTN: Post-doc Recruitment, US EPA, NHEERL (MD-85), RTP, NC 27711. This information should be received no later than JUNE 30, 2000. Web site: http://www.epa.gov/nheerl/postdocs .

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United States Environmental Protection Agency, Post-Doctoral program. National Health and Environmental Effects Research Laboratory. The National Health and Environmental Effects Research Laboratory (NHEERL) of the U.S. Environmental Protection Agency (EPA) is seeking candidates to fill approximately 10 federal postdoctoral research positions during the coming year. Several of these positions will present developmental opportunities which may be cross-organizational or cross-disciplinary; i.e., within or across NHEERL ecology or health divisions; across lab and human or ecological field studies; and across other national laboratories/centers within ORD or recrulatory program offices within EPA. United States citizens are preferred and will be given first consideration for any positions. Further information on Federal employment of non-citizens is available at http://www.epm.gov/employ/htm/citizen.htm . The filing deadline for these post-doctoral positions is June 30, 2000. If you are interested, please send the following to: Ms. Dorothy Carr, U.S. Environmental Protection Agency, Human Resources Management Division (MD-29), Research Triangle Park, NC 27711, Attn: NHEERL Post-Doctoral Program: Curriculum vitae; Letter of recommendation from your senior research advisor or other comparable official; Cover letter indicating your research interests, preferred research project(s) by number (see the NHEERL Internet site), preferred geographical location(s), country of citizenship, and citizenship status (citizen or permanent resident). If you wish to be considered for multiple research projects and/or geographical locations, please indicate each project number and location in your cover letter. If you are claiming veterans' preference, please include your DD-214 with your application package.

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Please submit all newsletter information or address changes to: goldade@chem.wisc.edu or 262-0293. Thank You.

DETAILS ARE AVAILABLE IN ROOM 1380.

NEXT NEWSLETTER IS ON JUNE 19th, 2000.