Open AccessCrystal Structure of {1,4-Bis[1-(3, 5-dichlorophenolato-2-ylmethyl)-ylpropylamino-κ2N, O]piperazine-κ2N, N′}cobalt(II)
Author(s) -
Koji Kubono,
Naoki Hirayama,
Hisao Kokusen,
Kunihiko Yokoi
Publication year - 2003
Publication title -
analytical sciences
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 73
eISSN - 1348-2246
pISSN - 0910-6340
DOI - 10.2116/analsci.19.645
Subject(s) - piperazine , chemistry , intramolecular force , crystal structure , ring (chemistry) , steric effects , crystallography , hydrogen bond , octahedron , cobalt , octahedral molecular geometry , molecule , cyclohexane conformation , bond length , stereochemistry , chelation , inorganic chemistry , organic chemistry
The X-ray crystal structure of the title complex, Co(Cl2bprpi) is described. In this complex the Co(II) center displays a distorted octahedral coordination geometry. The piperazine ring exhibits boat conformation, forming chelate rings and capping the Co atom. The N2-Col-N3 angle is 69.41(15) degrees, extremely smaller than 90 degrees. Because the small angle causes a large steric hindrance, the piperazine ring can be effective as an ion size-recognition site. The molecular structure is stabilized by intramolecular N-H...O hydrogen bonds and Cl...H contacts.