个人简介
Education Links
B.A. 1982, University of Rochester
S. M. 1984, Ph. D. 1988, University of Chicago
NSF and NATO Postdoctoral Fellow, University of Groningen, 1988-1990
Senior Laser Scientist, Quantronix Corporation, 1990 - 1991
Staff Scientist, Brookhaven National Laboratory, 1991 - 1998
Associate Professor, Rutgers, The State University of New Jersey, 1998-2006
Professor, Rutgers, The State University of New Jersey, 2006-Present
研究领域
Materials Chemistry/Physical Chemistry
Ultrafast laser spectroscopy in condensed phases, electron-transfer and solvation dynamics
The focus of our the research efforts in our group involves ionic liquids, or molten salts that are liquid at room temperature. We study the physical and chemical behaviors of these novel liquids using a combination of methods, including time-resolved laser spectroscopy, synchrotron-based x-ray scattering and multi-dimensional NMR experiments. We will on occasion synthesize a novel ionic liquid that is expected to display unique properties. We enjoy participating in a wide range of collaborations, including those with the Blank, Margulis, Maronceli and Wishart groups.
Current Projects
Dynamics, Interactions, and Structure in Novel Room-Temperature Ionic Liquids
Probing supercooled liquid properties of non-aromatic molten salts by time-resolved fluorescence spectroscopy
Anomalous transport in ionic liquids probed by NMR
Creation of novel ionic liquids with silicon-substituted cations
Comparative studies of ionic liquids and their homologous neutral binary solution analogs
OHD-RIKES as a probe of intermolecular dynamics and orientational relaxation
Photo-induced Electron-Transfer in Ionic Liquids, Condensed Phases and at Interfaces
Ultrafast charge separation in donor-bridge-acceptor systems
Acknowledgments
We wish to acknowledge support for our research from the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Bioscience under SISGR Grant no DE-FG02-09ER16118 and from the U.S. National Science Foundation, Directorate for Mathematical and Physical Sciences, Divison of Chemistry under grant CHE-1112077.
近期论文
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M. Liang, S. Khatun and E. W. Castner, Jr., "Communication: Unusual Structure and Transport in Ionic Liquid-Hexane Mixtures", J. Chem. Phys. 142, accepted 3/17/2015.
S. Khatun and E. W. Castner, Jr., "Ionic Liquid-Solute Interactions Studies by 2D NOE NMR Spectroscopy", J. Phys. Chem. B, 2014, ASAP. doi: 10.1021/jp509861g.
H. K. Kashyap, C. S. Santos, N. S. Murthy, J. J. Hettige, K. Kerr, S. Ramati, J. Gwon, M. Gohdo, S. I. Lall-Ramnarine, J. F. Wishart, C. J. Margulis, and E. W. Castner, Jr., "Structure of 1-Alkyl-1-methylpyrrolidinium Bis(trifluoromethylsulfonyl)amide Ionic Liquids with Linear, Branched and Cyclic Alkyl Groups", J. Phys. Chem. B, 2013, 117, 15328-15337. doi: 10.1021/jp403518j.
H. Y. Lee, H. Shirota and E. W. Castner, Jr., "Differences in Ion Interactions for Isoelectronic Ionic Liquid Homologs", J. Phys. Chem. Lett. 2013, 4, 1477-1483. doi: 10.1021/jz400465x.
H. K. Kashyap, C. S. Santos, R. P. Daly, J. J. Hettige, N. S. Murthy, H. Shirota, Edward W. Castner, Jr. and C. J. Margulis, "How Does the Ionic Liquid Organizational Landscape Change when Nonpolar Cationic Alkyl Groups Are Replaced by Polar Isoelectronic Diethers?", J. Phys. Chem. B, 2013, 117, 1130-1135. doi: 10.1021/jp311032p
A. Triolo, O. Russina, R. Caminiti, H. Shirota, H. Y. Lee, C. S. Santos, N. S. Murthy, and E. W. Castner, Jr., "Comparing intermediate range order for alkyl- vs. ether-substituted cations in ionic liquids", Chem. Commun., 2012,48, 4103-4105. doi: 10.1039/c2cc31550e.
H. Y. Lee, J. B. Issa, S. S. Isied, E. W. Castner, Jr., Y. Pan, C. L. Hussey, K. S. Lee and J. F. Wishart, "A Comparison of Electron-Transfer Dynamics in Ionic Liquids and Neutral Solvents", J. Phys. Chem. C 2012, 116, 5197-5208. doi: 10.1021/jp208852r.
H. K. Kashyap, C. S. Santos, H. V. R. Annapureddy, N. S. Murthy, C. J. Margulis and Edward W. Castner, Jr., "Temperature-dependent structure of ionic liquids : X-ray scattering and simulations", Faraday Disc. 2012, 154, 133-143. doi: 10.1039/C1FD00059D.
C. S. Santos, N. S. Murthy, G. A. Baker, E. W. Castner, Jr., "X-ray scattering from ionic liquids with pyrrollidinium cations", J. Chem. Phys., 134, 121101 (2011). doi: 10.1063/1.3569131.
E. W. Castner, Jr., C. J. Margulis, M. Maroncelli, and J. F. Wishart, "Ionic Liquids: Structure and Photochemical Reactivity", Annu. Rev. Phys. Chem. 2011, 62, 85-105. doi: 10.1146/annurev-physchem-032210-103421.
C. S. Santos, H. V. R. Annapureddy, N. S. Murthy, H. K. Kashyap, E. W. Castner, Jr. and C. J. Margulis, "Temperature-dependent structure of methyltributylammonium bis(trifluoromethylsulfonyl)amide: x-ray scattering and simulations", J. Chem. Phys., 134, 064501 (2011). doi: 10.1063/1.3526958
E. W. Castner, Jr. and J. F. Wishart, "Spotlight on ionic liquids", J. Chem. Phys. 132, 120901 (2010). doi: 10.1063/1.3373178
B. M. Krieger, H. Y. Lee, T. J. Emge, J. F. Wishart and E. W. Castner, Jr., "Ionic Liquids and Solids with Paramagnetic Anions", Phys. Chem. Chem. Phys., 2010, doi:10.1039/b920652n.
E. W. Castner, Jr., J. F. Wishart, and H. Shirota, "Intermolecular Dynamics, Interactions and Solvation in Ionic Liquids", Accounts of Chemical Research, 2007, 40(11), 1217-1227. doi: 10.1021/ar700169g
B. J. Lee, M. Barch, E. W. Castner, Jr., J. Völker, and K. J. Breslauer, "Structure and Dynamics in DNA looped Domains: CAG Triplet Repeat Sequence Dynamics Probed by 2-Aminopurine Fluorescence", Biochemistry, 2007, 46, 10756-10766. doi: 10.1021/bi7005674
J. F. Wishart and E. W. Castner, Jr., Editorial, "The Physical Chemistry of Ionic Liquids", J. Phys. Chem. B, 2007, 111(18), 4639-4640. doi: 10.1021/jp072262u. This editorial for the May 10, 2007 special issue of JPC B on the "Physical Chemistry of Ionic Liquids" was no. 14 on the Most-Accessed list for 2007.
S. H. Chung, R. Lopato, S. G. Greenbaum, H. Shirota, E. W. Castner, Jr., and J. F. Wishart, "A Nuclear Magnetic Resonance Study of the Dynamics of Imidazolium Ionic Liquids with -CH2Si(CH3)3 vs. -CH2C(CH3)3 substituents", J. Phys. Chem. B, 2007, 111(18), 4885-4893. doi: 10.1021/jp071755w
J. B. Issa, A. Salameh, E. W. Castner, Jr., J. F. Wishart, and S. S. Isied, "Conformational Analysis of the Electron Transfer Kinetics across Oligoproline Peptides Using N,N-dimethyl-1,4-benzenediamine Donors and Pyrene-1-sulfonyl Acceptors", J. Phys. Chem. B, 2007, 111, 6878-6886. doi: 10.1021/jp071599t
A. M. Funston, T. A. Fadeeva, J. F. Wishart, E. W. Castner Jr., "Fluorescence Probing of Temperature-Dependent Dynamics and Friction in Ionic Liquid Local Environments", J. Phys. Chem. B, 2007, 111(18), 4963-4977. doi: 10.1021/jp068298o. This paper was no. 9 on the Most-Cited Articles list for calendar 2007 (Mar. 31, 2008 data).