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Time-dependent fluorescence in nanoconfined solvents: Linear-response approximations and Gaussian statistics
dc.contributor.author | Laird, Brian Bostian | |
dc.contributor.author | Thompson, Ward H. | |
dc.date.accessioned | 2014-12-16T20:38:44Z | |
dc.date.available | 2014-12-16T20:38:44Z | |
dc.date.issued | 2011-08-26 | |
dc.identifier.citation | Laird, Brian Bostian; Thompson, Ward H. (2011). "Time-dependent fluorescence in nanoconfined solvents: Linear-response approximations and Gaussian statistics. The Journal of Chemical Physics, 135(8):084511. http://dx.doi.org/10.1063/1.3626825 | |
dc.identifier.issn | 0021-9606 | |
dc.identifier.uri | http://hdl.handle.net/1808/16128 | |
dc.description | This is the publisher's version, also available electronically from http://scitation.aip.org/content/aip/journal/jcp/135/8/10.1063/1.3626825. | |
dc.description.abstract | The time-dependent fluorescence of a model dye molecule in a nanoconfined solvent is used to test approximations based on the dynamic and static linear-response theories and the assumption of Gaussian statistics. Specifically, the results of nonequilibrium molecular-dynamics simulations are compared to approximate expressions involving time correlation functions obtained from equilibrium simulations. Solvation dynamics of a model diatomic dye molecule dissolved in acetonitrile confined in a spherical hydrophobic cavity of radius 12, 15, and 20 Å is used as the test case. Both the time-dependent fluorescence energy, expressed as the normalized dynamic Stokes shift, and the time-dependent position of the dye molecule after excitation are examined. While the dynamic linear-response approximation fails to describe key aspects of the solvation dynamics, assuming Gaussian statistics reproduces the full nonequilibrium simulations well. The implications of these results are discussed. | |
dc.publisher | American Institute of Physics | |
dc.title | Time-dependent fluorescence in nanoconfined solvents: Linear-response approximations and Gaussian statistics | |
dc.type | Article | |
kusw.kuauthor | Laird, Brian Bostian | |
kusw.kudepartment | Chemistry | |
kusw.oastatus | fullparticipation | |
dc.identifier.doi | 10.1063/1.3626825 | |
kusw.oaversion | Scholarly/refereed, publisher version | |
kusw.oapolicy | This item meets KU Open Access policy criteria. | |
dc.rights.accessrights | openAccess |