TY - JOUR
T1 - Spectroscopic and photophysical studies of apparent cluster-to-organic-acceptor charge transfer in a molecular cadmium sulfide assembly
AU - Yoon, Dong I.
AU - Selmarten, Donald C.
AU - Lu, Hong
AU - Liu, Hui Jean
AU - Mottley, Carolyn
AU - Ratner, Mark A.
AU - Hupp, Joseph T.
N1 - Funding Information:
We thank Professor Ken Spears for the generous loan of instrumentation for single photon counting measurements and Professor Steve Boxer for advice on construction of the Stark instrument. We gratefully acknowledge the Office of Naval Research, the DOD AASERT program and the donors to the Petroleum Research Fund, administered by the American Chemical Society, for support of this work. JTH additionally acknowledges a Teacher-Scholar Award (1991-96) from the Dreyfus Foundation.
PY - 1996/3/15
Y1 - 1996/3/15
N2 - 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.
AB - 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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U2 - 10.1016/0009-2614(96)00046-2
DO - 10.1016/0009-2614(96)00046-2
M3 - Article
AN - SCOPUS:0030584475
VL - 251
SP - 84
EP - 89
JO - Chemical Physics Letters
JF - Chemical Physics Letters
SN - 0009-2614
IS - 1-2
ER -