个人简介

Associate Editor: Journal of Chemical Physics (2010-present) Dean of Science, The Chinese University of Hong Kong (2009-2012) Elected Fellow, American Association for the Advancement of Science (2005) Distinguished Professor, University of California, Davis (2001-present) Senior Humboldt Research Award (1998) Senior Fellow, Japanese Society for Promotion of Science (1997) Distinguished Professor of Liberal Arts and Sciences, Iowa State University (1996-2001) Iowa Regents Award for Faculty Excellence (1994) Editor-in-charge, Advances Series in Physical Chemistry, World Scientific Book Series (1993-present) Elected Fellow, American Physical Society (1993) Honorary Professor, Zhengzhou University, China (1985) Camille and Henry Dreyfus Teacher-Scholar (1982) Alfred P. Sloan Fellow (1981) Assistant (1977), Associate (1982) and Full Professor of Chemistry (1986-1996), Iowa State University Ph.D., University of California, Berkeley, 1976 B. S., Chung Chi College, The Chinese University of Hong Kong, 1971

研究领域

Physical Chemistry

Our research interests are in physical chemistry and chemical physics, focusing in the general area of state-selected and state-to-state spectroscopy and dynamics. By employing high resolution photoionization and photoelectron methods, we are actively engaging in the study of chemical structure, energetics, and reactivity of ions and neutrals. We are particularly interested in developing new experimental methods to advance these research fields. Recent advances include the introduction of two-color infrared-vacuum ultraviolet (IR-VUV) and VUV-VUV laser photoexcitation schemes for photoionization and photodissociation studies. We have also succeeded in implementing a novel high-resolution VUV pulsed field ionization method for the preparation ions in single rovibronic states, which has allowed the examination of translational, rotational, vibrational, and electronic energy effect on chemical reactivity. These new methods are being applied to the study of neutrals and ions of relevance to combustion, catalysis, atmospheric, planetary, and interstellar chemistry.

近期论文

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Y. C. Chang, H. Xu, Y. Xu, et al.. "Communication: Rovibrationally selected study of the N2+(X; v+ = 1, N+ = 0-8) + Ar charge transfer reaction using the vacuum ultraviolet laser pulsed field ionization-photoion method", J. Chem. Phys. 134, 201105 (2011). Y. Pan, H. Gao, L. Yang, et al., "Communication: VUV laser photodissociation studies of small molecules by the VUV laser photoionization time-sliced velocity-mapped ion imaging method", J. Chem. Phys. 135, 071101 (2011). Top 20 most read JCP articles in Aug., 2011. H. Gao, Y. Song, L. Yang et al., "Communication: Branching ratio measurement in the predissociation of 12C16O by time-slice velocity-map ion imaging in the vacuum ultraviolet region", J. Chem. Phys. 135, 221101 (2011). Top 20 most read JCP articles in December 2011. H. Gao, Z. Lu, L. Yang et al., "Communication: A vibrational study of propargyl cation using the vacuum ultraviolet laser velocity-map imaging photoelectron method", J. Chem. Phys. 137, 161101 (2012). Y. Xu, B. Xiong, Y. C. Chang et al., "Communication: Rovibrationally selected absolute total cross sections for the reaction H2O+(X2B1; v1+v2+v3+ = 000; N+Ka+Kc+ ) + D2: Observation of the rotational enhancement effect", J. Chem. Phys.137, 241101 (2012) Y.-C. Chang, H. Huang, Z. Luo et al., "Communication: A vibrational study of titanium dioxide cation using the vacuum ultraviolet laser pulsed field ionization-photoelectron method", J. Chem. Phys. 138, 041101 (2013) H. Huang, Y. C. Chang, Z. Luo et al., "Rovibronically selected and resolved two-color laser photoionization and photoelectron study of cobalt carbide cation", J. Chem. Phys., 138, 094301 (2013). Y. Xu, Y. C. Chang, Z. Lu et al., "Absolute total cross sections and product branching ratios for the vibrationally selected ion-molecule reactions: N2+(X2Σg+; v+ = 0-2) + CH4", Astrophys. J. 72, 769 (2013). H. Huang, Z. Luo, Y. C. Chang et al., "Rovibronically selected and resolved two-color laser photoionization and photoelectron study of titanium monoxide cation", J. Chem. Phys. 138, 174309 (2013). H. Gao, Y. Song, W. M. Jackson et al., "Communication: State-to-state photodissociation study of 12C16O by the VUV-VUV pump-probe Time-Slice Velocity-Map Imaging Photoion Method", J. Chem. Phys. 138, 191102 (2013). Top 20 most read JCP articles in May, 2013.