Spectroscopic and photophysical studies of apparent cluster-to-organic-acceptor charge transfer in a molecular cadmium sulfide assembly

Dong I. Yoon*, Donald C. Selmarten, Hong Lu, Hui Jean Liu, Carolyn Mottley, Mark A. Ratner, Joseph T. Hupp

*Corresponding author for this work

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

A nitrobenzene (NB) decorated cadmium sulfide cluster, [Cd4(S-NB)10][N(CH3)4]2, has been prepared and examined spectroscopically. The assembly exhibits an intense cluster-to-attached-acceptor charge-transfer band at 376 nm. Observation of back electron transfer (nitrobenzene to cluster) via time resolved luminescence yields a rate constant of ≥ 5 × 109 s-1. Raman studies show that seven vibrational modes are coupled to the electron transfer reaction and that those exhibiting the greatest initial-state/final-state displacements are the Cd-S and N-O stretches. Despite the activity of VCd-S, however, the electron donor is more appropriately characterized as an individual sulfur atom, rather than a delocalized assembly.

Original languageEnglish (US)
Pages (from-to)84-89
Number of pages6
JournalChemical Physics Letters
Volume251
Issue number1-2
DOIs
StatePublished - Mar 15 1996

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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