Synthesis and reactivities of binuclear iron(III) complexes with ligands composed of two tridentate chelating groups |
| |
Authors: | Yuzo Nishida Masataka Takeuchi Hiroyuki Shimo Sigeo Kida |
| |
Affiliation: | Department of Chemistry, Faculty of Science, Kyushu University 33, Fukuoka 812, Japan |
| |
Abstract: | Several new binuclear iron(III) complexes were prepared using the binucleating ligands in which two molecules of N,N-bis(2-benzimidazolymethyl)amine are linked by a polyatomic chain, such as-(CH2)4(L-4), -(CH2)6- (L-6), and -CH2CH(OH)CH2H(L-3), etc., and were characterized in terms of the magnetic measurements and cyclic voltammetry. The complexes, Fe2(L-3′0(NO3)5 showed subnormal magnetic moments, 4.10 BM at 299 K and 2.22 BM at 87 K, respectively, suggesting the presence of an alkoxo-bridge structure. This complex showed much higher catalytic activity for the O2 oxidation of N, N, N′,N′-tetramethyl-1-1,4-diaminobenzene than those of the relevant mononuclear complexes and other binuclear complexes studied here which have no alkoxo-bridge. The complex reacts with catechol and hydrogen peroxide to form 1:1 adducts. |
| |
Keywords: | Author to whom correspondence should be addressed. |
本文献已被 ScienceDirect 等数据库收录! |
|