title: A linear cyclic oximate-bridged tetracopper(II) complex.
abstract: The crystal structure of the title complex, tetrakis[mu-6-amino-3-methyl-4-azahex-3-en-2-one oximato(1-)-kappa4N,N',N":O]tetracopper(II) tetraperchlorate 0.6-hydrate, [Cu4(C6H12N3O)4](ClO4)4*0.6H2O, shows the cation to be an oximate-bridged tetramer composed of four 6-amino-3-methyl-4-azahex-3-en-2-one oxime ligands and four copper(II) ions and to have crystallographically imposed 4 symmetry. Each Cu(II) atom is four-coordinated by the three N atoms of one oxime ligand and by the O atom of another oxime ligand in a distorted square-planar geometry.
authors.affiliation: Department of Physics, National Tsing Hua University, Hsinchu, Taiwan 300. thlu@phys.nthu.edu.tw
authors.forename: T H
authors.initials: TH
authors.lastname: Lu
authors.forename: Y J
authors.initials: YJ
authors.lastname: Lin
authors.forename: H
authors.initials: H
authors.lastname: Luh
authors.forename: F L
authors.initials: FL
authors.lastname: Liao
authors.forename: C S
authors.initials: CS
authors.lastname: Chung