ISOTOPICS The Cleveland Section of the American Chemical Society Volume 85 Issue 5 May 2009 May Meeting Notice On Deck: September 2009 TBD Awards Banquette Thursday, May 21, 2009 The Grand Ballroom, The Renaissance Cleveland Hotel 6:00 pm 7:00 pm 7:45 pm Cleveland ACS Officers Chair: Dr. David Ball Department of Chemistry Cleveland State University Phone: 216-687-2456 d.ball@csuohio.edu Chair-Elect: Dr. Mekki Bayachou Department of Chemistry Cleveland State University Phone: 216-875-9716 m.bayachou@csuohio.edu Treasurer: Theresa Nawalaniec University Library Cleveland State University Phone: 216-687-3504 t.nawalaniec@csuohio.edu Secretary: Dr. David Miller Phone: 216-332-8405 Davegobe42@mindspring.com Social Hour (cash bar) Dinner Presentations Using Electronic Spectroscopy to Probe Reactive Chemical Intermediates Terry A. Miller, Department of Chemistry, The Ohio State University Gas phase chemical reactions, such as occur in atmospheric chemistry, combustion, plasma processing, etc. are of great importance to our economy and society. These reactions are typically very complex involving up to 1000's of elementary steps with a corresponding number of reactive chemical intermediates. Spectroscopic diagnostics, based upon well analyzed and well understood spectra of the intermediates, are crucial for monitoring such reactions and unraveling their mechanisms. These spectral analyses often benefit from the guidance provided by quantum chemical calculations of electronic structure and conversely the molecular parameters, experimentally determined from the spectra, serve as "gold standards" for benchmarking such calculations. Such standards are especially valuable for reactive intermediates whose electronic or geometric structure is particularly complex because of electron-spin interactions, Jahn-Teller effects or other vibronic interactions, hindered internal motions, large molecular size and weight, etc. The organic alkoxy, RO·, and peroxy, RO2·, (R=alkyl group) free radicals are excellent examples of reactive intermediates involved in the oxidation of organic molecules. The talk will focus on our recent spectroscopic characterization of these radicals. These experiments have been carried out at room temperature obtaining sufficient resolution to distinguish among different isomers, conformers, and isotopologues of the same chemical species. Higher resolution, mostly rotationally resolved, electronic spectra have been observed for radicals jet-cooled to between 1-20K. The techniques of laser induced fluorescence, stimulated emission pumping, and cavity ringdown spectroscopy have been utilized. Selected spectra, their analysis, and the molecular information resulting therefrom will be discussed. DINNER RESERVATIONS REQUIRED: Please RSVP by contacting Cleveland Section Web Site: http://www.csuohio.edu/sciences /dept/cleveland_acs/ David Ball, by phone at 216-687-2456 or by e-mail at d.ball@csuohio.edu by 5 pm on Friday, May 15. (For phone reservations, please clearly spell your last name and leave a return phone number). Cost of the dinner is $60 for members & guests and $25 for students. Checks made out to “Cleveland ACS” are greatly appreciated. The social hour will include a cash bar, and dinner will be a served meal with a green salad, balsamic chicken breast, seasonal vegetables, and cake for dessert. Because of the cost of the banquet, people who make reservations are expected to pay for dinner whether or not they attend. Page 2 Isotopics May 2009 41st CENTRAL REGIONAL MEETING OF THE ACS OPENS MAY 20 Come join us for the 41st Central Regional Meeting of the American Chemical Society! Hosted by the Cleveland Section ACS, the CERMACS will be bringing chemists and other chemical professionals to the downtown Renaissance Cleveland Hotel on historic Public Square for three and a half days of interactions, presentations, and social gatherings. The Awards Banquet will be serving as the May section meeting of the Cleveland Section. Not only will we enjoy a great dinner prepared by the hotel chefs, but we will be celebrating the achievements of chemists in several areas: outstanding high school teaching, outstanding volunteer contributions to the profession, and outstanding contributions to chemistry in the northeast Ohio area – that is, our own Morley Award! The Renaissance Cleveland Hotel The Renaissance Cleveland Hotel is located at 24 Public Square in downtown Cleveland, Ohio. It is attached to Tower City, so one option is to park in the Tower City parking lots and walk over to the hotel. Alternatively, the hotel is adjacent to Superior Ave, which goes through Public Square. A parking lot for the hotel can be accessed from Superior Avenue just west of Public Square. American Chemical Society Cleveland Section Speaker Bio Dr. Miller holds an Ohio Eminent Scholar Chair at The Ohio State University. He is also Director of the Spectroscopy Institute and Chair of the Chemical Physics Program there. Previously he was a Distinguished Member of Technical Staff at Bell Laboratories. He has held visiting faculty appointments at Princeton University, Stanford University, and the Institute for Molecular Science in Japan. He received his undergraduate degree from the University of Kansas and his Ph.D. from Cambridge University, where he was a Marshall Scholar, Dr. Miller's research centers around the spectroscopic identification, characterization and monitoring of reactive chemical intermediates. He has developed numerous spectroscopic techniques spanning frequencies from the microwave to the ultraviolet. Presently, his laboratory focuses upon reactive intermediates, particularly alkoxy and peroxy radicals, involved in the oxidation of hydrocarbons. He is author of more than 325 scientific publications. His research has been recognized with the Meggars Award (Optical Society of America), the Bomem-Michaelson Award (Coblentz Society), the Bourke Medal (Royal Society of Chemistry), and the Broida Prize and Plyler Prize (American Physical Society). He has been granted the recognition of Fellow by the American Physical Society, Optical Society of America and American Association for the Advancement of Science. He served on the Council of the American Chemical Society and as a member of the Executive Committee of its Physical Chemistry Division. He is Editor of the Journal of Molecular Spectroscopy and Chair of the OSU International Symposium on Molecular Spectroscopy which annually attracts approximately 500 conferees. He serves on several other journal editorial boards and conference program committees, including Chair of the International Advisory Committee for the Free Radicals Symposium. Page 3 Isotopics May 2009 Archive Committee Searching for Materials By Helen Mayer Do you have any documents, photos or awards that are of historical significance to the Cleveland Section of the American Chemical Society? If they are just collecting dust in your attic or office, consider donating them to the Archive Committee. These items do not need to be “old;” items that are current but may be of historical significance in a few years will be accepted also. The Archive Committee maintains the Cleveland Section Archives as a part of the archives at John Carroll University. Our collection goes back to the early days of the Cleveland Chemistry Club, and includes originals of the first charter. We also maintain copies of Isotopics back to the original issue. We are especially interested in any awards that the section has won over the years. Any photos donated should be captioned (we have received many requests for photos over the years and occasionally actually have them). At this time, we are not interested in any back issues of Isotopics or any old Annual Reports. Please contact Helen Mayer at 216-676-2372 or helen.mayer@graftech.com to arrange pick up of the materials or to view the Archives. Congratulations to Kat Wollyung! Cleveland Section ACS member Kathleen “Kat” Wollyung is this year’s recipient of the E. Ann Nalley Central Regional Award for Volunteer Service to the American Chemical Society. The Award will be presented at the Awards Banquet of the Central Regional Meeting at the Renaissance Cleveland Hotel on May 21. The Award recognizes a person who has performed extraordinary volunteer services in the name of the ACS. Those of you who participate in National Chemistry Week activities may recall that Kat has been helping to plan and implement the Cleveland Section’s NCW program of hands- American Chemical Society Cleveland Section on experiments for children for many years. The Cleveland Section has been the recipient of several Phoenix and ChemLuminary awards for its NCW programs, and there’s no doubt that Kat’s efforts have contributed to that. Congratulations, Kat! (Now get back to planning the 2009 NCW stuff!) Chemists Celebrate Earth Day April 22 was Earth Day, and local chemists took part in various activities to celebrate. At Cleveland State University, the Student Affiliate of the ACS arranged to plant a tree on campus as part of Earth Day festivities. Here we see CSU students ceremonially planting a forest pansy tree (the grounds department will do the actual planting!). One tree may not make a difference, but it’s one more tree than the earth had before! Page 4 Isotopics May 2009 American Chemical Society Cleveland Section June Historical Events in Chemistry By Leopold May The Catholic University of America, Washington, DC June 6, 1943 Richard E. Smalley, who was born on this date, does research in supersonic beam laser spectroscopy and discovered fullerenes. In 1996, he shared the Nobel Prize with R. F. Curl and H. W. Kroto for their discovery of fullerenes. June 14, 1862 Johann Ulrich Nef, the Father of Physical Organic Chemistry; discovered the valence of carbon and did research on free radicals and transition state in organic reactions. He was born on this date. June 20, 1899 W. R. Grace & Co. was incorporated on this date June 25, 1911 William H. Stein, who was born on this date, was a researcher in enzyme chemistry. In 1972, he shared the Nobel Prize in Chemistry with Stanford Moore for their contribution to the understanding of the connection between chemical structure and catalytic activity of the active centre of the ribonuclease molecule and with Christian B. Anfinsen for his work on ribonuclease, especially concerning the connection between the amino acid sequence and the biologically active conformation. ISOTOPICS STAFF Editor: Daniel Tyson Day-Glo Color Corporation Phone: 216-391-7384 daniel_s_tyson@yahoo.com Business and Advertising: David Miller Phone: 216-332-8405 david.f.miller@sherwin.com Associate Editor Dwight Chasar dwight.chasar@yahoo.com Associate Editor Richard L. Middaugh Phone: 440-785-0293 rlmiddaugh@ameritech.net Associate Editor Dr. Lily Ng Cleveland State University Phone: 216-687-2467 l.ng@csuohio.edu Associate Editor Daniel Scheiman QSC/NASA GRC Phone: 216-433-3223 daniel.a.scheiman@nasa.gov Isotopics is looking to highlight local chemistry professionals, companies, teachers, research groups, students, events, and more. If you have an idea for an Isotopics article, please contact the editor. Isotopics is also looking for local members to join our staff. Time commitments for staff members are minimal (a few hours a year!) and your contributions will be invaluable to our local section. If you are interested in joining Isotopics, please contact the editor.