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Electronic Energy Transfer Across Ethynyl‐Bridged Ru II /Os II Terpyridyl Complexes
Author(s) -
Grosshenny Vincent,
Harriman Anthony,
Ziessel Raymond
Publication year - 1995
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199511001
Subject(s) - intramolecular force , chemistry , alkyne , counterion , metal , excitation , electron transfer , crystallography , photochemistry , ion , stereochemistry , physics , biochemistry , organic chemistry , catalysis , quantum mechanics
The rate of intramolecular triplet energy transfer upon excitation of the Ru II unit in the binuclear complex 1 decreases by roughly a third when the alkyne spacer is extended by a second ethynyl group (complex 2 ). The metal—metal distance increases by 2.4 Å, and correspondingly the attenuation factor for electron exchange through the CC bonds is 0.17 Å −1 . Counterion PF 6 − .