TY - JOUR
T1 - Photo-induced reverse valence tautomerism in a metastable Co compound
AU - Sato, Osamu
AU - Hayami, Shinya
AU - Gu, Zhong Ze
AU - Takahashi, Kazuyuki
AU - Nakajima, Rie
AU - Fujishima, Akira
N1 - Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2002/3/25
Y1 - 2002/3/25
N2 - In our preceding paper, we have reported that a Co complex, [CoIII-LS(tmeda)(3, 5-DBSQ)(3, 5-DBCat)]· 0.5C6H5CH3, exhibits a photo-induced valence tautomerism. The photo-induced metastable state, [CoII-HS(tmeda) (3, 5-DBSQ)2]· 0.5C6H5CH3, has a back electron transfer band from CoII-HS to 3,5-DBSQ at around 800 nm, indicating that the valence tautomerism should be photo-reversible. In fact, we have found that the metastable state could be photo-pumped back to the original state by exciting the back electron transfer band. The process can be expressed as [CoII-HS(tmeda)(3, 5-DBSQ)2] · 0.5C6H5CH3(metastable state) → [CoIII-LS(tmeda)(3, 5-DBSQ)(3, 5-DBCat)] · 0.5C6H5 CH3 (ground state).
AB - In our preceding paper, we have reported that a Co complex, [CoIII-LS(tmeda)(3, 5-DBSQ)(3, 5-DBCat)]· 0.5C6H5CH3, exhibits a photo-induced valence tautomerism. The photo-induced metastable state, [CoII-HS(tmeda) (3, 5-DBSQ)2]· 0.5C6H5CH3, has a back electron transfer band from CoII-HS to 3,5-DBSQ at around 800 nm, indicating that the valence tautomerism should be photo-reversible. In fact, we have found that the metastable state could be photo-pumped back to the original state by exciting the back electron transfer band. The process can be expressed as [CoII-HS(tmeda)(3, 5-DBSQ)2] · 0.5C6H5CH3(metastable state) → [CoIII-LS(tmeda)(3, 5-DBSQ)(3, 5-DBCat)] · 0.5C6H5 CH3 (ground state).
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U2 - 10.1016/S0009-2614(02)00205-1
DO - 10.1016/S0009-2614(02)00205-1
M3 - Article
AN - SCOPUS:0037170947
SN - 0009-2614
VL - 355
SP - 169
EP - 174
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 1-2
ER -