title: An unexpected chelate conformation in trans-[(R)-N,N'-bis(alpha-phenylsalicylidene)propane-1,2-diaminato(2-)]bis(1-methyl-1H-imidazole-kappaN3)cobalt(III) perchlorate.
abstract: The title compound, [Co(C29H24N2O2)(C4H6N2)2]ClO4, contains an optically active tetradentate Schiff base ligand in an equatorial plane and two 1-methylimidazole ligands at apical positions. The central N-C-C-N chelate ring of the Schiff base ligand has an envelope structure with a lambda conformation, which is different from the solution structure predicted from circular dichroism and 1H NMR spectra.
authors.affiliation: Department of Chemistry, Faculty of Science, Okayama University, Tsushima, Okayama 700-8530, Japan. hirotsu@chem.gunma-u.ac.jp
authors.forename: Masaaki
authors.initials: M
authors.lastname: Kojima
authors.forename: Masakazu
authors.initials: M
authors.lastname: Hirotsu
authors.forename: Kiyohiko
authors.initials: K
authors.lastname: Nakajima
authors.forename: Setsuo
authors.initials: S
authors.lastname: Kashino
authors.forename: Yuzo
authors.initials: Y
authors.lastname: Yoshikawa