个人简介

S. B. Chemistry, Massachusetts Institute of Technology, 1975 Ph. D. Chemistry, University of California at Berkeley, 1979 Postdoctoral research associate, University of Illinois, 1979-1980 NSF postdoctoral research associate, University of Illinois, 1980 Joined the Brown faculty in 1981 Fulbright Scholar, Oxford University, 1991-1992 Chair, Brown chemistry department 1996-1999

研究领域

laser/liquids/molecular dynamics/solvation/spectroscopy/ultrafast/vibrational relaxation

The prospects for making sense of dynamics in liquids have improved dramatically in the recent years. With the advent of ultrafast lasers has come the ability to look at times short enough that the painful complications have barely begun to set in. Our own work has been focused on developing a theoretical understanding of this ultrafast dynamics. In particular, we are hoping to discern the molecular mechanisms of events such as solvation and vibrational relaxation -- the elementary steps that determine the course of chemical reactions in liquids.

近期论文

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X. Sun, B. M. Ladanyi, and R. M. Stratt, J. Phys. Chem. B (in press) (2014). The effects of electronic-state-dependent solute polarizability: Application to solute-pump/solvent-probe spectra. (2014 American Chemical Society Editors' Choice article.) Q. Ma and R. M. Stratt, Phys. Rev. E 90, 042314 (2014). The potential energy landscape and inherent dynamics of a hard-sphere fluid. D. Jacobson and R. M. Stratt, J. Chem. Phys. 140, 174503 (2014). The inherent dynamics of a molecular liquid: Geodesic pathways through the potential energy landscape of a liquid of linear molecules. X. Sun and R. M. Stratt, J. Chem. Phys. 139, 044506 (2013). How a solute-pump/solvent-probe spectroscopy can reveal structural dynamics: Polarizability response spectra as a two-dimensional solvation spectroscopy. X. Sun and R. M. Stratt, Phys. Chem. Chem. Phys. 14, 6320 (2012). The molecular underpinnings of a solute-pump/solvent-probe spectroscopy: The theory of polarizability response spectra and an application to preferential solvation. C. N. Nguyen, J. I. Isaacson, K. B. Shimmyo, A. Chen, and R. M. Stratt, J. Chem. Phys. 136, 184504 (2012). How dominant is the most efficient pathway through the potential energy landscape of a slowly diffusing disordered system? B. Zhang and R. M. Stratt, J. Chem. Phys. 137, 024506 (2012). Vibrational energy relaxation of large-amplitude vibrations in liquids. X. Liang, M. G. Levy, S. Deb, J. D. Geiser, R. M. Stratt, and P. M. Weber, J. Mol. Struct. 978, 250 (2010). Electron diffraction with bound electrons: The structure sensitivity of Rydberg fingerprint spectroscopy. C. N. Nguyen and R. M. Stratt, J. Chem. Phys. 133, 124503 (2010). Preferential solvation dynamics in liquids: How geodesic pathways through the potential energy landscape reveal mechanistic details about solute relaxation in liquids. (2010 Editors' Choice paper) G. Tao and R. M. Stratt, J. Phys. Chem. B 112, 369 (2008). The anomalously slow solvent structural relaxation accompanying high-energy rotational relaxation. R. M. Stratt, Science 321, 1789 (2008). Nonlinear thinking about molecular energy transfer. C. Wang and R. M. Stratt, J. Chem. Phys. 127, 224503 (2007). Global perspectives on the energy landscapes of liquids, supercooled liquids, and glassy systems: The potential energy landscape ensemble. C. Wang and R. M. Stratt, J. Chem. Phys. 127, 224504 (2007). Global perspectives on the energy landscapes of liquids, supercooled liqids, and glassy systems: Geodesic pathways through the potential energy landscape. A. C. Moskun, A. E. Jailaubekov, S. E. Bradforth, G. Tao, and R. M. Stratt. Science 311, 1907 (2006). Rotational coherence and a sudden breakdown in linear response seen in room-temperature liquids. G. Tao and R. M. Stratt, J. Phys. Chem. B 110, 976 (2006). Why does the intermolecular dynamics of liquid biphenyl so closely resemble that of liquid benzene? Molecular dynamics simulation of the optical-Kerr-effect spectra. G. Tao and R. M. Stratt, J. Chem. Phys. 125, 114501 (2006). The molecular origins of nonlinear response in solute energy relaxation: The example of high-energy rotational relaxation A. Ma and R. M. Stratt, J. Chem. Phys. 121, 11217 (2004). Multiphonon vibrational relaxation in liquids: Should it lead to an exponential-gap law? Polly B. Graham, Kira JM Matus, and Richard M. Stratt, J. Chem. Phys. 121, 5348 (2004). The workings of a molecular thermometer: The vibrational excitation of carbon tetrachloride by a solvent. S. Ryu, R. M. Stratt, K. K. Baeck, and P. M. Weber, J. Phys. Chem. A 108, 1189 (2004). Electron diffraction of molecules in specific quantum states: A theoretical study of vibronically excited s-tetrazine. P. M. Weber, R. C. Dudek, S. Ryu, and R. M. Stratt, Experimental and theoretical studies of pump-probe electron diffraction: time-dependent and state-specific signatures in small cyclic molecules, in FEMTOCHEMISTRY and FEMTOBIOLOGY: Ultrafast Events in Molecular Science, edited by M. M. Martin and J. T. Hynes (Elsevier, Amsterdam, 2004). S. Ryu and R. M. Stratt, J. Phys. Chem. B 108, 6782 (2004). A case study in the molecular interpretation of optical Kerr effect spectra: Instantaneous-normal-mode analysis of the OKE spectrum of liquid benzene. A. Ma and R. M. Stratt, J. Chem. Phys. 119, 8500 (2003). Selecting the information content of two-dimensional Raman spectra in liquids. A. Ma and R. M. Stratt, J. Chem. Phys. 119, 6709 (2003). Multiphonon vibrational relaxation in liquids: An exploration of the idea and of the problems it causes for molecular dynamics algorithms. S. Ryu, R. M. Stratt, and P. M. Weber, J. Phys. Chem. A 107, 6622 (2003). Diffraction signals of aligned molecules in the gas phase: Tetrazine in intense laser fields. Ao Ma and R. M. Stratt, Bull. Kor. Chem. Soc. 24, 1126 (2003) (special issue on Multidimensional Vibrational Spectroscopy). What do we learn from two-dimensional Raman spectra by varying the polarization conditions? Y. Deng, B. M. Ladanyi, and R. M. Stratt, J. Chem. Phys. 117, 10752 (2002). High-frequency vibrational energy relaxation in liquids: The foundations of instantaneous-pair theory and some generalizations. Ao Ma and R. M. Stratt, J. Chem. Phys. 116, 4972 (2002). The molecular origins of the two-dimensional Raman spectrum of an atomic liquid. II. Instantaneous-normal-mode theory. Ao Ma and R. M. Stratt, J. Chem. Phys. 116, 4962 (2002). The molecular origins of the two-dimensional Raman spectrum of an atomic liquid. I. Molecular dynamics simulation. Y. Deng and R. M. Stratt, J. Chem. Phys. 117, 1735 (2002). Vibrational energy relaxation of polyatomic molecules in liquids: The solvent's perspective. R. M. Stratt, The Molecular Mechanisms Behind the Vibrational Population Relaxation of Small Molecules in Liquids, in Ultrafast Infrared and Raman Spectroscopy, edited by M. D. Fayer (Marcel Dekker, New York, 2001). J. Jang and R. M. Stratt, J. Chem. Phys. 113, 11212 (2000). Dephasing of Individual Rotational States in Liquids. J. Jang and R. M. Stratt, J. Chem. Phys. 113, 5901 (2000). Rotational Energy Relaxationof Individual Rotational States in Liquids. Ao Ma and R. M. Stratt, Phys. Rev. Lett. 84, 1004 (2000). The Fifth-Order Raman Spectrum of an Atomic Liquid: Simulation and Instantaneous-Normal-Mode Calculation. J. Jang and R. M. Stratt, J. Chem. Phys. 112, 7538 (2000). The short-time dynamics of molecular reorientation in liquids. II. The microscopic mechanism of rotational friction. J. Jang and R. M. Stratt, J. Chem. Phys. 112, 7524 (2000). The short-time dynamics of molecular reorientation in liquids. I. The instantaneous generalized Langevin equation. S. Ryu, P. M. Weber, and R. M. Stratt, J. Chem. Phys. 112, 1260 (2000). The diffraction signatures of individual vibrational modes in polyatomic molecules.