Ferromagnetic coupling by orthogonal magnetic orbitals in a heterodinuclear CuIIVIV=O complex and in a homodinuclear CuIICuII complex

Thorsten Glaser; Hubert Theil; Ioannis Liratzis; Thomas Weyhermüller; Eckhard Bill

doi:10.1021/ic0606328

Ferromagnetic coupling by orthogonal magnetic orbitals in a heterodinuclear CuIIVIV=O complex and in a homodinuclear CuIICuII complex

Inorg Chem. 2006 Jun 26;45(13):4889-91. doi: 10.1021/ic0606328.

Authors

Thorsten Glaser¹, Hubert Theil, Ioannis Liratzis, Thomas Weyhermüller, Eckhard Bill

Affiliation

¹ Lehrstuhl Anorganische Chemie I, Universität Bielefeld, Universitätsstrasse 25, D-33615 Bielefeld, Germany. thorsten.glaser@uni-bielefeld.de

PMID: 16780307
DOI: 10.1021/ic0606328

Abstract

The heterodinuclear complex [LCuIIVIVO] 1 was synthesized by using a new unsymmetric dinucleating ligand based on 1,8-naphthalenediol, whereas the homodinuclear CuIICuII complex 2 has a bridging beta-diketimineamid unit. Here we report on the synthesis, molecular structures, and magnetic properties of 1 and 2. In the solid state, both complexes dimerize to tetranuclear entities 1(2) and 2(2). The intradimer interaction in both complexes is ferromagnetic because of the orthogonality of the magnetic orbitals (J12 = +45.6 cm(-1) in 1 and +4.8 cm(-1) in 2). The interdimer interaction in 1 is also ferromagnetic, giving a St = 2 ground state.