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

doi:10.1016/0009-2614(96)00046-2

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

Northwestern University

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

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 V_Cd-S, however, the electron donor is more appropriately characterized as an individual sulfur atom, rather than a delocalized assembly.

Original language	English
Pages (from-to)	84-89
Number of pages	6
Journal	Chemical Physics Letters
Volume	251
Issue number	1-2
DOIs	https://doi.org/10.1016/0009-2614(96)00046-2
Publication status	Published - Mar 15 1996

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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Spectroscopic and photophysical studies of apparent cluster-to-organic-acceptor charge transfer in a molecular cadmium sulfide assembly. / Yoon, Dong I.; Selmarten, Donald C.; Lu, Hong; Liu, Hui Jean; Mottley, Carolyn; Ratner, Mark A.; Hupp, Joseph T.

In: Chemical Physics Letters, Vol. 251, No. 1-2, 15.03.1996, p. 84-89.

Research output: Contribution to journal › Article › peer-review

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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.",

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AU - Ratner, Mark A.

AU - Hupp, Joseph T.

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