Dr. Yorke E. Rhodes

      Yorke Rhodes received a B. S. in soil chemistry and an M.S. in organic chemistry from the University of Delaware. After completing his Ph.D. at the University of Illinois in 1964 he was a National Institutes of Health Postdoctoral Fellow with Kenneth B. Wiberg at Yale University. He joined the faculty of New York University in 1965 and developed research areas in SO2 solvent chemistry, electrocyclic reactions, small ring chemistry, and carbocations, especially neighboring group cyclopropane-assisted cation rearrangements. He moved to the Washington Square campus in 1973 after a sabbatical leave with Horst Prinzbach at the Universitat Freiburg in West Germany. He was a State Department exchange visitor to Prague, Czechoslovakia, and Zagreb, Yugoslavia in 1977 and was also Gastprofessor with Ivar Ugi at the Technische Universitat Munchen (TUM)in 1977, followed by a stay in 1978 as Alexander von Humboldt U.S. Senior Scientist Awardee at the TUM with Ugi. Nasa/IEEE Summer Fellowships were held at the Jet Propulsion Laboratories at Cal Tech in Pasadena with Wes Huntress in 1980 and 1981 (astrochemistry). In 1987, he was professor associe at the Centre d'Astrophysique, Universite de Grenoble, France, with Alain Omont (astro-polycyclic aromatic hydrocarbon chemistry). Rhodes was awarded the Golden Dozen Award for Teaching Excellence in the College of Arts and Science in 1991, and again in 1996. Professor Rhodes is director of the Dual Degree Program in Science and Engineering at New York University and Stevens Institute of Technology, resides as Professor in Residence in a University residence hall, and is very active in the New York Academy of Sciences and American Chemical Society local section activities, sponsoring a variety of symposia, poster sessions and other activities for students. He was chair of the ACS New York Section for 1998. As an ACS Councilor, he is also a member of the Local Section Activities Committee and welcomes discussions about local sections. He has served on Department of Education review panels and is an educational consultant/evaluator for several undergraduate and high school research mentoring programs.

"Planetary Chemistry: Differences in the Solar System Atmospheres"

The layers of gases that envelop the planets in our solar system contain a wide variety of chemical elements and compounds. Life on earth exists because of our abundant supply of oxygen (along with the protective layer of ozone and the heat-trapping effects of carbon dioxide and other "greenhouse gases"). If we look at the atmospheres of other planets, we find hydrogen, helium, argon, nitrogen, krypton, sodium, methane, ammonia, carbon monoxide, nitric oxide, sulfur dioxide, formaldehyde, and many other substances. There are similarities in the atmospheres of the terrestrial planets (Mercury, Venus, Earth, and Mars) and between those of the four gas giants (Jupiter, Saturn, Uranus, and Neptune). This presentation will explore the characteristics of the atmosphere of each of the planets in our solar system.