부산대학교 도서관

To link to full-text access for this article, visit this link: http://dx.doi.org/10.1016/0277-5387(95)00461-0 Byline: Miroslav Rapta, Peter Kamaras Abstract: The reaction of the hydrochloride salt of the potentially dinucleating unsymmetrical ligand, 2-bis(2-benzimidazolylmethyl)aminomethyl-6-[(2-benzimidazolylmethyl)(2-methoxyphenylmethyl)aminomethyl]-4-methyl-phenol [N3(OH)N2 -- MeOB], with Fe(CIO.sub.4).sub.3 * 6H.sub.2O in ethanol (and one equivalent of diphenylphosphate), followed by the addition of five equivalents of triethylamine, yielded a mononuclear complex [Fe.sup.III (Cl).sub.2(N3(O)N2H.sub.2.sup.2+ -- MeOB)](ClO.sub.4).sub.2*2CH.sub.3CH.sub.2OH (1). The crystal structure of this complex shows a tridentate coordination of the bis(2-benzimidazolylmethyl)amino moiety in a facial manner. A distorted octahedral coordination around iron(III) is completed by one terminally coordinated phenolato moiety and two chloro ligands, one of which occupies an equatorial position. The monobenzimidazole branch at the 6-position of the ligand does not coordinate and is doubly protonated; the positive charge of the complex is compensated for by two perchlorate anions. The unusual behaviour of this ligand and the potential of complex 1 to serve as a molecular precursor for heterodinuclear Fe.sup.III M.sup.II unsymmetrical complexes is discussed. Author Affiliation: Department of Chemistry, Georgetown University, Washington, DC 20057, U.S.A. Article History: Received 2 June 1995; Accepted 25 September 1995