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Ultrafast Orientational Dynamics of Nanoconfined Benzene

Published online by Cambridge University Press:  26 February 2011

Xiang Zhu ,
Richard Farrer  and
John Fourkas
Xiang Zhu
Affiliation:
xiangzhu@umd.edu, United States
Richard Farrer
Affiliation:
richard.farrer@gmail.com
John Fourkas
Affiliation:
fourkas@umd.edu, University of Maryland, Chemistry and Biochemistry, Chemistry Building, College Park, Maryland, 20742, United States, 301 405-7996, 301 314-4121
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Abstract

Optical Kerr effect spectroscopy has been used to study the orientational dynamics of benzene and benzene-d6 confined in nanoporous sol-gel glasses. Orientational diffusion was found to be inhibited considerably in confinement due to the strong wetting of benzene on silica. The orientational dynamics of benzene-d6 were found to be affected less than those of benzene, which is in agreement with the somewhat larger contact angle of benzene-d6 on silica. Comparison of our results to Raman data for confined benzene-d6 suggests that this liquid is considerably more organized at the pore surfaces than in the bulk.

Keywords

sol-gelliquidRaman spectroscopy
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 899: Symposium N – Dynamics in Small Confining Systems VIII , 2005 , 0899-N05-03
Copyright
Copyright © Materials Research Society 2006

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References

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