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ESR Study of Light‐Induced Valence Tautomerism of a Dinuclear Co Complex
Author(s) -
Teki Yoshio,
Shirokoshi Mugen,
Kanegawa Shinji,
Sato Osamu
Publication year - 2011
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201100467
Subject(s) - chemistry , tautomer , valence (chemistry) , quantum tunnelling , complex matrix , relaxation (psychology) , matrix (chemical analysis) , computational chemistry , stereochemistry , condensed matter physics , organic chemistry , psychology , social psychology , physics , chromatography
Light‐induced valence tautomerism (LIVT) of a dinuclear complex, [{Co(dpqa)} 2 (dhbq)](PF 6 ) 3 ( 1 ), was investigated by ESR analysis of dhbq 3– . LIVT phenomena were observed in the sample diluted in the glass matrix as well as that in powder form. The signal decay and the relaxation were analyzed by double exponential fitting; the results suggest a two‐step mechanism. Quantum mechanical tunneling was clearly observed in the glass matrix.