个人简介

Ph.D. (1964) California Institute of Technology

研究领域

Environment and Energy/Photochemistry/Spectroscopy and Dynamics/Synthesis and Catalysis

PHOTOCHEMISTRY OF ORGANIC MOLECULES: ELUCIDATION OF THE MECHANISMS OF SELECTED PHOTOCHEMICAL REACTIONS BY CHEMICAL AND SPECTROSCOPIC MEANS We aim to determine the role, multiplicity, and geometry of key electronically excited and ground-state intermediates, applying both chemical and spectroscopic means. We are guided by the premise that a detailed understanding of simple photochemical reactions establishes the proper foundation for the study of more complex photochemical and photobiological systems. Our methods include quantitative measurements of product quantum yields, determination of rate constants by employing steady-state and transient emission and absorption spectroscopy, use of triplet excitation transfer to sensitize or quench triplet reaction pathways, and studies of the effects of medium and temperature on the photochemical and photophysical events. An important goal is the integration of all the information into a self-consistent kinetics model for each reaction. Much of this work depends on the use of computers.

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Saltiel, J.; R. Kumar, V. K.; Redwood, C. E.; Mallory, F. B.; Mallory, C. W. Competing adiabatic and nonadiabatic pathways in the cis-trans photoisomerization of cis-1,2-di(1-methyl-2-naphthyl)ethene. A zwitterionic twisted intermediate Photochem. Photobiol. Sci. submitted. Redwood, C. E.; Kanvah, S.; Samudrala, R.; Saltiel, J. Bicycle pedal photoisomerization of 1-phenyl-4-(4-pyridyl)-1,3-butadienes in glassy isopentane at 77 K Photochem. Photobiol. Sci. ASAP, DOI:10.1039/C3PP50064K Redwood, C.; Bayda, M.; Saltiel, J. Photoisomerization of Pre- and Provitamin D3 in EPA at 77 K: One Bond-Twist Not Hula-Twist J. Phys. Chem. Lett. 2013, 117, 716-721 http://dx.doi.org/10.1021/jz302108c Saltiel, J.; Kumar, R. V. K. The Photophysics of Diphenylacetylene. Light from the Dark State J. Phys. Chem. A 2012, 116, 1054810558. http://dx.doi.org/10.1021/jp307896c Saltiel, J. The A and B of Cis-Trans Photoisomerization Eur. Photochem. Assoc. Newsletter 2012, 82, 14-20 (invited contribution). Saltiel, J.; Hutchinson, S. R.; Chitwood, K.; Dmitrenko, O. Photoisomerization of cis-1-(3-Methyl-2-naphthyl)-2-phenylethene in Glassy Methylcyclohexane at 77 K J. Phys. Chem. A 2012, 116, 5293-5298 http://dx.doi.org/10.1021/jp3017198 Turek, A. M.; Saltiel, J.; Krishna, T. R. S.; Krishnamoorthy, G. Resolution of Conformer Specific All-trans-1,6-diphenyl-1,3,5-hexatriene UV Absorption Spectra J. Phys. Chem. A 2012, 116, 5353-5367. http://dx.doi.org/10.1021/jp301198p Fedorova, O. A.; Fedorov, Yu. V.; Labazava, I. E.; Gulakova, E. N.; Saltiel, J. Complexes of amino acids with a crown-ether derivative of 4-styrylpyridine. Monotopic or ditopic? Photochem. Photobiol. Sci. 2011, 10, 1954-1962, DOI: 10.1039/C1PP05007A Saltiel, J (Saltiel, Jack); Krishna, TRS (Krishna, Talapragada R. S.); Laohhasurayotin, K (Laohhasurayotin, Kritapas); Ren, YJ (Ren, Yanjun); Phipps, K (Phipps, Kathleen); Davis, PH (Davis, Paul H.); Yee, WA (Yee, W. Atom) Medium Effects on the Direct Cis-Trans Photoisomerization of 1,4-Diphenyl-1,3-butadiene in Solution. JOURNAL OF PHYSICAL CHEMISTRY A 2011, Volume: 115 Issue: 11, 2120-2129 Saltiel, J (Saltiel, Jack); Klima, R (Klima, Rodney); van de Burgt, LJ (van de Burgt, L. J.); Wang, SJ (Wang, Shujun); Dmitrenko, O (Dmitrenko, Olga) Temperature Dependence of the 1,6-Diphenyl-1,3,5-hexatriene Triplet Lifetime in Solution and Theoretical Evaluation of Triplet Conformer Interconversion. JOURNAL OF PHYSICAL CHEMISTRY B 2010, Volume: 114 Issue: 45, 14480-14486 Saltiel, J (Saltiel, Jack); Papadimitriou, D (Papadimitriou, Dimitrios); Krishna, TSR (Krishna, Tallapragada S. R.); Huang, ZN (Huang, Zhen-Nian); Krishnamoorthy, G (Krishnamoorthy, Govindarahan); Laohhasurayotin, S (Laohhasurayotin, Somchoke); Clark, RJ (Clark, Ronald J.) Photoisomerization of All-cis-1,6-diphenyl-1,3,5-hexatriene in the Solid State and in Solution: A Simultaneous Three-Bond Twist Process. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 2009, Volume: 48 Issue: 43, 8082-8085 Saltiel, J (Saltiel, Jack); Krishna, TSR (Krishna, Tallapragada S. R.); Laohhasurayotin, S (Laohhasurayotin, Somchoke); Fort, K (Fort, Katy); Clark, RJ (Clark, Ronald J.) Photoisomerization of cis,cis- to trans,trans-1,4-diaryl-1,3-butadienes in the solid state: The bicycle-pedal mechanism. JOURNAL OF PHYSICAL CHEMISTRY A 2008, Volume: 112 Issue: 2, 199-209 Saltiel, J (Saltiel, Jack); Bremer, MA (Bremer, Michael A.); Laohhasurayotin, S (Laohhasurayotin, Somchoke); Krishna, TSR (