学术报告： Spectroscopy of Reactive Chemical Intermediates: Experiment and Theory
报告人: Professor Terry A Miller
Laser Spectroscopy Facility, Department of Chemistry, The Ohio State University, Columbus Ohio 43210 USA
时间：4月18日（周二）上午10点
地点：化学楼二楼会议室
Abstract: Few things affect your quality of life more than the air you breathe and the temperature of your immediate environment. Since more than 80% of the energy used in the industrialized world today is still derived from fossil fuels, these two quantities are not unrelated. Most organic molecules injected into the troposphere are degraded via oxidative processes involving free radical intermediates, and many of these intermediates are the same as the ones involved in the combustion of fossil fuels. Modern spectroscopic techniques like laser induced fluorescence (LIF) and cavity ringdown spectroscopy (CRDS) allow the detection, monitoring, and characterization of chemical intermediates involved in both atmospheric and combustion-related oxidation of organic molecules. Relevant species that we have studied include the alkoxy (RO) and peroxy (RO2) families (R="CnH2n+1)" of radicals as well as the nitrate radical NO3. Specifically we will describe results from LIF experiments on the near-UV electronic spectra of CH3O, C2H5O, and i-C3H7O and their analysis. Related CRDS experiments and analyses of the A？-X？ electronic transition in the near-IR of RO2 radicals will be discussed. Time permitting, a brief overview of the near-IR electronic spectrum of NO3 will be presented and there will be a brief discussion of the future directions of molecular spectroscopy.
Biography: Professor Miller received his B.A. degree in Chemistry at the University of Kansas in 1965, and his Ph.D. degree in Chemistry at Cambridge University in 1968. He worked as a Distinguished Member of the Technical Staff at Bell Telephone Laboratories from 1968 to 1984. He joined the Ohio State University in 1984 as the state of Ohio's first Eminent Scholar. In 1992 he became the chairman of the OSU International Symposium on Molecular Spectroscopy. Professor Miller has received numerous research awards including the William F. Meggars Award (Optical Society of America - 1993), the Bourke Medal (Royal Society of Chemistry - 1998), the Broida Prize (American Physical Society- 1999), and the Plyler Prize (American Physical Society - 2009). Professor Miller has served or serves on the following journal editorial boards: Journal of Chemical Physics; Review of Scientific Instruments; Journal of Physical Chemistry; Journal of the Optical Society of America. He is editor-in-chief of the Journal of Molecular Spectroscopy.
