An EPR, magnetic and electrochemical study of electron exchange and intermetallic interaction through polyene bridges
- 1 January 1992
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 24,p. 1796-1798
- https://doi.org/10.1039/c39920001796
Abstract
The new bipyridylpolyene bridged bimetallic complexes [{LCl(NO)Mo}2{4,4′-NC5H4(CHCH)nH4C5N}][L = HB(3,5-Me2C3HN2)3; n= 2, 3, 4 all trans] may be reduced in two one-electron processes, the separation between which decreases by approximately 166 mV per additional ethenyl unit, they exhibit EPR spectra (300 K) consistent with rapid (>108 s–1) electron exchange between the metal centres and magnetic measurements indicate the presence of an antiferromagnetic interaction in the compound with n= 4 with a coupling –2J estimated to be 100 cm–1.Keywords
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