CaltechAUTHORS
Published September 21, 1998 | Version public
Journal Article Metadata-only

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)

Creators

  • 1. ROR icon Wabash College
  • 2. ROR icon California Institute of Technology

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.

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.

Additional details

Identifiers

Eprint ID
86411
Resolver ID
CaltechAUTHORS:20180515-133335193

Funding

NSF
Caltech Summer Undergraduate Research Fellowship (SURF)
Arnold and Mabel Beckman Foundation

Dates

Created
2018-05-18
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Updated
2021-11-15
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