TY - JOUR
T1 - Synthesis and crystal structures of cobalt(III) complexes containing pyridine-2-selenolato and its oxidation products
AU - Kita, Masakazu
AU - Tamai, Hiroshi
AU - Ueta, Fumi
AU - Fuyuhiro, Akira
AU - Yamanari, Kazuaki
AU - Nakajima, Kiyohiko
AU - Kojima, Masaaki
AU - Murata, Katsuo
AU - Yamashita, Shinsuke
N1 - Funding Information:
We thank Grants-in-Aid for Scientific Research No. 0640727 (for M.K.) from the Ministry of Education, Science, Sports and Culture.
PY - 2001/3/19
Y1 - 2001/3/19
N2 - A series of mixed cobalt(III) complexes [Co(pySe)3-n(N-N)n]n+ [pySe = pyridine-2-selenolato (1-); N-N = 1,2-ethanediamine (en) and 2,2′-bipyridine (bpy); n = 0, 1 and 2] was prepared. The geometrical preference and trans influence of pySe are fairly different from those of pyridine-2-thiolate. These selenolato complexes were oxidized by peracetic acid to give the corresponding pyridine-2-seleninato (pySeO2) and pyridine-2-selenonato (pySeO3) complexes. The crystal structures of the pySeO2 and pySeO3 complexes revealed that the coordination mode change from an original N,Se-four-membered to the N,O-five-membered chelate ring occurred during oxidation and intramolecular hydrogen bonds between the non-coordinated oxygen of pySeO2 or pySeO3 and the amine protons of en stabilize the N,O-coordination mode.
AB - A series of mixed cobalt(III) complexes [Co(pySe)3-n(N-N)n]n+ [pySe = pyridine-2-selenolato (1-); N-N = 1,2-ethanediamine (en) and 2,2′-bipyridine (bpy); n = 0, 1 and 2] was prepared. The geometrical preference and trans influence of pySe are fairly different from those of pyridine-2-thiolate. These selenolato complexes were oxidized by peracetic acid to give the corresponding pyridine-2-seleninato (pySeO2) and pyridine-2-selenonato (pySeO3) complexes. The crystal structures of the pySeO2 and pySeO3 complexes revealed that the coordination mode change from an original N,Se-four-membered to the N,O-five-membered chelate ring occurred during oxidation and intramolecular hydrogen bonds between the non-coordinated oxygen of pySeO2 or pySeO3 and the amine protons of en stabilize the N,O-coordination mode.
KW - Cobalt(III) complexes
KW - Pyridine-2-seleninato
KW - Pyridine-2-selenolato
KW - Pyridine-2-selenonato
KW - Selenolato complexes
KW - X-ray crystal structure
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U2 - 10.1016/S0020-1693(01)00304-8
DO - 10.1016/S0020-1693(01)00304-8
M3 - Article
AN - SCOPUS:0035911790
SN - 0020-1693
VL - 314
SP - 139
EP - 146
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
IS - 1-2
ER -