Marshall, Mark D - Amherst College

个人简介

Ph.D., Chemistry, Harvard University (1985) “Molecular potential energy surfaces probed by high resolution far-infrared and microwave spectroscopy,” M.A., Chemistry, Harvard University (1981) B.S., Chemistry, University of Rochester (1979) A.M. (honorary), Amherst College (2000) I am a physical chemist, seeking an understanding of chemical systems through application of the laws and techniques of physics. The courses that I teach reflect these interests by providing Amherst College students with the fundamental tools of chemistry necessary to address questions throughout all areas of scientific inquiry. Brief descriptions of these courses follow. Most recently, I have been teaching (but translated to our new three-digit course numbers) Chemistry 155 and Chemistry 161, but in the past and certainly in the future I have taught and will teach Chemistry 151, Chemistry 351, and Chemistry 361. Chemistry 151 (Introductory Chemistry): This first course in chemistry at Amherst is concerned with atomic and molecular structure, or how the basic building blocks of matter are put together into the myriad materials of everyday life. Because the physical behavior of light objects confined to small spaces is not a part of routine experience, light electrons, when bound in small atoms, act in unfamiliar ways that cannot be understood by analogies to macroscopic objects. Since classical mechanics fails to account for electron behavior in atoms and molecules, elementary ideas and results from quantum mechanics are introduced. Chemistry 155 (Fundamental Principles of Chemistry): This course is intended for students entering Amherst with outstanding preparations in chemistry. Although the topics discussed are the same as in Chemistry 151 the approach is markedly different. In my hands, Chemistry 155 is an introduction to chemical physics that focuses on the foundations of our current understanding of chemistry. Topics are treated in greater physical and mathematical detail than in Chemistry 151, and in particular, the application of quantum mechanics to chemical systems is done in a more advanced fashion. Chemistry 161 (Chemical Principles): Both Chemistry 151 and 155 lead into Chemistry 161 as a second course in chemistry at Amherst. Chemistry 161 is an introduction to chemical thermodynamics and kinetics, both of which are concerned with chemical reactions or changes in molecular structures. The thermodynamics portion of the course addresses the question of the position of chemical equilibrium and the properties of chemical systems that control it. Chemical kinetics investigates the rate at which equilibrium is achieved, or how quickly a reaction occurs. One might say that thermodynamics answers the question, “Where is the reaction going?” while kinetics responds to “When is it going to get there?” Chemistry 361 (Physical Chemistry): Chemistry 361 expands upon the principles of thermodynamics introduced in Chemistry 161. These are investigated in more detail and the connection between observed macroscopic concepts such as energy, entropy, and equilibrium and microscopic molecular properties is made via statistical mechanics. Chemistry 351 (Quantum Chemistry and Spectroscopy): Chemistry 351 is an introduction to the fundamental postulates of quantum mechanics and their application to chemical systems, particularly through various forms of spectroscopy. The mathematical tools necessary for a quantum treatment of atomic and molecular behavior are developed.

研究领域

Evolutionary biology, micro-evolution and molecular ecology

近期论文

查看导师新发文章（温馨提示：请注意重名现象，建议点开原文通过作者单位确认）

Helen O. Leung, Mark D. Marshall, and Nazir D. Khan, "The Microwave Spectrum and Molecular Structure of (Z)-1-Chloro-2-Fluoroethylene Acetylene: Demonstrating the Importance of the Balance between Steric and Electrostatic Interactions in Heterodimer Formation," J. Phys. Chem. A, in press, available on line (2017). doi: 10.1021/acs.jpca.7b05101 Christopher T. Dewberry, Jessica L. Mueller, Rebecca B. Mackenzie, Mark D. Marshall, Helen O. Leung, and Kenneth R. Leopold, "The Effect of ortho-Fluorination on Intermolecular Interactions of Pyridine: Microwave Spectrum and Structure of the CO2 – 2,6-Difluoropyridine Weakly Bound Complex," J. Mol. Struct., 1146, 373 (2017). doi: 10.1016/j.molstruc.2017.06.015 Helen O. Leung, Mark D. Marshall, and Miles A. Wronkovich, "The microwave spectrum and molecular structure of Ar-2,3,3,3-tetrafluoropropene," Journal of Molecular Spectroscopy, 337, 80 (2017). doi: 10.1016/j.jms.2017.04.012 Nathan A. Seifert, Daneil P. Zaleski, Robert Fehnel, Mausumi Goswami, Brooks H. Pate, Kevin K. Lehmann, Helen O. Leung, Mark D. Marshall, and John F. Stanton, "The gas-phase structure of the asymmetric, trans-dinitrogen tetroxide (N2O4), formed by dimerization of nitrogen dioxide (NO2), from rotational spectroscopy and ab initio quantum chemistry," Journal of Chemical Physics, 146, 134305 (2017). doi: 10.1063/1.4979182 Helen O. Leung and Mark D. Marshall, "Effect of chlorine substitution in modulating the relative importance of two intermolecular interactions: the microwave spectrum and molecular structure of (E)-1- chloro-2-fluoroethylene-HCl," Journal of Physical Chemistry A, 120, 7955 (2016). doi: 10.1021/acs.jpca.6b07739 Helen O. Leung, Mark D. Marshall, and Alex J. Lee, "The microwave spectrum and molecular structure of (E)-1-chloro-2-fluoroethylene-HF: Revealing the balance among electrostatics, sterics, and resonance in intermolecular interactions," Journal of Physical Chemistry A, 120, 7935 (2016). doi: 10.1021/acs.jpca.6b07252 Gary E. Douberly, Paul L. Raston, Tao Liang, and Mark D. Marshall, "Infrared rovibrational spectroscopy of OH–C2H2 in 4He nanodroplets: Parity splitting due to partially quenched electronic angular momentum," Journal of Chemical Physics, 142, 134306 (2015). doi: 10.1063/1.4916394 Helen O. Leung, Mark D. Marshall, Joseph P. Messinger, Gregory S. Knowlton, Kathryn M. Sundheim, and Jasmina Cheung-Lau, "The microwave spectra and molecular structures of 2-chloro-1,1-difluoroethylene and its complex with the argon atom," Journal of Molecular Spectroscopy, 305, 25 (2014). doi: 10.1016/j.jms.2014.09.011 Helen O. Leung and Mark D. Marshall, "The effect of acid identity on the geometry of intermolecular complexes: The microwave spectrum and molecular structure of vinyl chloride-HF," Journal of Physical Chemistry A, 118, 9783 (2014), doi: 10.1021/jp508278d. Helen O. Leung, Mark D. Marshall, Jessica L. Mueller, and Brent K. Amberger, "The molecular structure of and interconversion tunneling in the argon-cis-1,2-difluoroethylene complex," Journal of Chemical Physics, 139, 134303 (2013). Helen O. Leung, Mark D. Marshall, and Fan Feng, "Microwave spectrum and molecular structure of vinyl chloride-acetylene, a side-binding complex," Journal of Physical Chemistry A, 117, 13419 (2013). Mark D. Marshall, Helen O. Leung, and Catherine E. Calvert, "Molecular Structure of the Argon-(Z)-1-Chloro-2-fluoroethylene Complex from Chirped-pulse and Narrow-band Fourier Transform Microwave Spectroscopy," Journal of Molecular Spectroscopy, 280, 97 (2012). Helen O. Leung, Mark D. Marshall, Aaron T. Bozzi, Paul M. Cohen, and Mable Lam, "Microwave Spectrum and Molecular Structure of the 1-Chloro-1-fluoroethylene-Hydrogen Fluoride Complex," Journal of Molecular Spectroscopy, 267, 43 (2011). Mark D. Marshall, Helen O. Leung, Benjamin Q. Scheetz, Jonathan E. Thaler, and John S. Muenter, "A Chirped Pulse Fourier Transform Microwave Study of the Refrigerant Alternative 2,3,3,3-Tetrafluoropropene," Journal of Molecular Spectroscopy, 266, 37 (2011). Helen O. Leung, Mark D. Marshall, and David D. Grimes, "Rotational Spectroscopy and Molecular Structure of the 1-Chloro-1-fluoroethylene-Acetylene Complex," Journal of Chemical Physics, 134, 034303 (2011). Helen O. Leung and Mark D. Marshall, "Rotational Spectra of 34S- and 33S-containing Isotopologues of Laser Ablation Generated Tin Monosulfide," Journal of Molecular Spectroscopy 265, 52 (2011). H. O. Leung, M. D. Marshall, M. R. Ray, and J. T. Kang, "Rotational Spectroscopy and Molecular Structure of the 1,1,2-Trifluoroethylene-Hydrogen Chloride Compex," Journal of Physical Chemistry A 114, 10975 (2010). Helen O. Leung, Mark D. Marshall, and Brent K. Amberger, "Fourier Transform Microwave Spectroscopy and Molecular Structure of the trans-1,2-Difluoroethylene-Hydrogen Fluoride Complex," J. Chem. Phys., 131, 204302 (2009). Helen O. Leung, Mark D. Marshall, Tasha L. Drake, Tadeusz Pudlik, Nazir Savji, and Daniel W. McCune, "Fourier Transform Microwave Spectroscopy and Molecular Structure of the 1,1-Difluoroethylene-Hydrogen Fluoride Complex," J. Chem. Phys., 131, 204301 (2009). Helen O. Leung, Mark D. Marshall, Andrew L. Vasta, and Norman C. Craig "Microwave Spectra of Eight Isotopic Modifications of 1-chloro-1-fluoroethylene," J. Mol. Spectrosc., 253, 116 (2009). Carolyn S. Brauer, Galen Sedo, Erin Dahlke, Shenghai Wu, Erik M. Grumstrup, Kenneth R. Leopold, Mark D. Marshall, Helen O. Leung, and Donald G. Truhlar, "Effects of 18O Isotopic Substitution on the Rotational Spectra and Potential Splitting in the OH-H2O Complex: Improved Measurements for 16OH-16OH2 and 18OH-18OH2, New Measurements for the Mixed Isotopic Forms, and Ab Initio Calculations of the 2A' - 2A" Energy Separation," J. Chem. Phys., 129, 104304 (2008). Helen O. Leung, Mark D. Marshall, Winn T. Cashion, and Vincent L. Chen, "Rotational Spectroscopy and Molecular Structure of the 1,1,2-Trifluoroethylene-Acetylene Complex," J. Chem. Phys., 128, 064315 (2008). Helen O. Leung and Mark D. Marshall, "Rotational Spectroscopy and Molecular Structure of 1,1,2-Trifluoroethylene and the 1,1,2-Trifluoroethylene-Hydrogen Fluoride Complex," J. Chem. Phys., 126, 114310 (2007). Erika L. Derro, Craig Murray, Marsha I. Lester, and Mark D. Marshall, "Photodissociation Dynamics of Methyl Nitrate at 193 nm: Energy Disposal in Methoxy and Nitrogen Dioxide Products," Phys. Chem. Chem. Phys., 9, 262 (2007). Helen O. Leung and Mark D. Marshall, "Rotational Spectroscopy and Molecular Structure of the 1,1-Difluoroethylene-acetylene Complex," J. Chem. Phys., 125, 154301 (2006).