title: N,N,N',N'-Tetrakis(2-quinolylmethyl)-2-hydroxy-1,3-propanediamine (Htqhpn) as a supporting ligand for a low-valent (mu-O)2 tetranuclear manganese core.
abstract: A new heptadentate N6-O1 ligand, N,N,N',N'-tetrakis(2-quinolylmethyl)-2-hydroxy-1,3-propanediamine (Htqhpn), was synthesized and used to generate compounds with linearly ordered MnIIMnIIIMnIIIMnII tetranuclear cores. This is the lowest valent tetranuclear manganese complex that exhibits a (mu2-O)2Mn2 core in the molecule. The electron paramagnetic resonance and magnetic measurements of these tetranuclear complexes suggest moderately strong antiferromagnetic coupling for the central MnIII2 core, with weak coupling between the MnII and MnIII centers.
authors.affiliation: KYOUSEI Science Center, Division of Material Science, and Department of Chemistry, Faculty of Science, Nara Women's University, Nara 630-8506, Japan. mikata@cc.nara-wu.ac.jp
authors.forename: Yuji
authors.initials: Y
authors.lastname: Mikata
authors.forename: Motoko
authors.initials: M
authors.lastname: Wakamatsu
authors.forename: Haruka
authors.initials: H
authors.lastname: So
authors.forename: Yuriko
authors.initials: Y
authors.lastname: Abe
authors.forename: Masahiro
authors.initials: M
authors.lastname: Mikuriya
authors.forename: Kôichi
authors.initials: K
authors.lastname: Fukui
authors.forename: Shigenobu
authors.initials: S
authors.lastname: Yano