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Time-Resolved Resonance Raman Spectroscopy at Low Temperature. The Excited-State Metal−Metal Stretching Frequency of Rh_2(TMB)_4^(2+)(TMB = 2,5-Dimethyl-2,5-diisocyanohexane)

Dallinger, Richard F. and Carlson, Matt J. and Miskowski, Vincent M. and Gray, Harry B. (1998) Time-Resolved Resonance Raman Spectroscopy at Low Temperature. The Excited-State Metal−Metal Stretching Frequency of Rh_2(TMB)_4^(2+)(TMB = 2,5-Dimethyl-2,5-diisocyanohexane). Inorganic Chemistry, 37 (19). pp. 5011-5013. ISSN 0020-1669. http://resolver.caltech.edu/CaltechAUTHORS:20180515-133335193

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Abstract

The excited-state metal−metal stretching frequency of the bridged binuclear complex Rh_2(TMB)_4^(2+) (TMB = 2,5-dimethyl-2,5-diisocyanohexane) obtained from time-resolved resonance Raman spectra is 151 cm^(-1), as compared to 50 cm^(-1) in the ground state, indicating a much stronger Rh−Rh bond in the excited state than in the ground state. The key experimental innovation was lowering the solution sample temperature to just above the glass transition to increase the excited triplet state lifetime relative to the laser pulse width.


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https://doi.org/10.1021/ic980130xDOIArticle
Additional Information:© 1998 American Chemical Society. Received February 3, 1998. Publication Date (Web): September 3, 1998. We thank Jay Winkler for assistance with several experiments. This work was supported by the NSF, the Caltech SURF program (M.J.C.), and the Arnold and Mabel Beckman Foundation.
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Funding AgencyGrant Number
NSFUNSPECIFIED
Caltech Summer Undergraduate Research Fellowship (SURF)UNSPECIFIED
Arnold and Mabel Beckman FoundationUNSPECIFIED
Record Number:CaltechAUTHORS:20180515-133335193
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20180515-133335193
Official Citation:Time-Resolved Resonance Raman Spectroscopy at Low Temperature. The Excited-State Metal−Metal Stretching Frequency of Rh2(TMB)42+ (TMB = 2,5-Dimethyl-2,5-diisocyanohexane). Richard F. Dallinger, Matt J. Carlson, Vincent M. Miskowski, and Harry B. Gray. Inorganic Chemistry 1998 37 (19), 5011-5013. DOI: 10.1021/ic980130x
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86411
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 May 2018 18:15
Last Modified:18 May 2018 18:15

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