TY - JOUR
T1 - A switchable complex ligand exhibiting photoinduced valence tautomerism
AU - Dai, Jingwei
AU - Kanegawa, Shinji
AU - Li, Zhaoyang
AU - Kang, Soonchul
AU - Sato, Osamu
PY - 2013/8
Y1 - 2013/8
N2 - The crystal of a valence tautomeric cobalt complex, [Co(dbbq) 2(bpym)](1) (dbbq = 3,6-di-tert-butyl-1,2-benzoquinone and bpym = 2,2′-bipyrimidine), have been obtained by reaction between Co 2(CO)8 and dbbq in the presence of the ligand bpym in a mixed solvent under an N2 atmosphere. The magnetic behavior of complex 1 clearly indicates that electron transfer from the catecholate ligand to the CoIII center occurs, which results in valence tautomers of [CoII(SQ)2(bpym)] with a transition temperature (T 1/2) of 232(1) K. Photomagnetic studies show that complex 1 exhibits photoinduced valence tautomerism. The complex has the ability to coordinate and can be used as a photoswitchable building block. The crystal structure of a valence tautomeric cobalt complex, [Co(dbbq)2(bpym)](1) (dbbq = 3,6-di-tert-butyl-1,2-benzoquinone and bpym = 2,2′-bipyrimidine), was elucidated. Photomagnetic studies show that complex 1 exhibits photoinduced valence tautomerism. The complex has the ability to coordinate and can be used as a photoswitchable building block.
AB - The crystal of a valence tautomeric cobalt complex, [Co(dbbq) 2(bpym)](1) (dbbq = 3,6-di-tert-butyl-1,2-benzoquinone and bpym = 2,2′-bipyrimidine), have been obtained by reaction between Co 2(CO)8 and dbbq in the presence of the ligand bpym in a mixed solvent under an N2 atmosphere. The magnetic behavior of complex 1 clearly indicates that electron transfer from the catecholate ligand to the CoIII center occurs, which results in valence tautomers of [CoII(SQ)2(bpym)] with a transition temperature (T 1/2) of 232(1) K. Photomagnetic studies show that complex 1 exhibits photoinduced valence tautomerism. The complex has the ability to coordinate and can be used as a photoswitchable building block. The crystal structure of a valence tautomeric cobalt complex, [Co(dbbq)2(bpym)](1) (dbbq = 3,6-di-tert-butyl-1,2-benzoquinone and bpym = 2,2′-bipyrimidine), was elucidated. Photomagnetic studies show that complex 1 exhibits photoinduced valence tautomerism. The complex has the ability to coordinate and can be used as a photoswitchable building block.
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U2 - 10.1002/ejic.201300531
DO - 10.1002/ejic.201300531
M3 - Article
AN - SCOPUS:84882293223
SN - 0365-9496
SP - 4150
EP - 4153
JO - Berichte der deutschen chemischen Gesellschaft
JF - Berichte der deutschen chemischen Gesellschaft
IS - 24
ER -