title: (4,4,12,12-Tetramethyl-5,8,11-triazapenta-2,14-dione 2-oxime 14-oximato-kappa(5)N)copper(II) perchlorate: a copper(II) compound with a pentadentate triamine-oxime-oximate ligand.
abstract: The title compound, [Cu(C(16)H(34)N(5)O(2))]ClO(4), has discrete square-pyramidal (triamine-oxime-oximato)copper(II) cations and perchlorate anions. The cations have very approximate mirror symmetry, with the oxime [Cu-N = 2.066 (2) A], oximate [Cu-N = 2.087 (2) A] and amine N atoms [Cu-N = 2.138 (2) and 2.095 (2) A] in the tetrahedrally twisted basal plane, and the 'central' amine N atom coordinated axially [Cu-N = 2.183 (2) A]. The oxime and oximate groups are linked by an O-H.O hydrogen bond, forming a pseudo-cyclic pentadentate ligand, with an O.O distance of 2.395 (3) A.
authors.affiliation: School of Chemical and Physical Sciences, Victoria University of Wellington, Box 600, Wellington, New Zealand. neil.curtis@vuw.ac.nz
authors.forename: Neil F
authors.initials: NF
authors.lastname: Curtis
authors.forename: Olga P
authors.initials: OP
authors.lastname: Gladkikh
authors.forename: Keith R
authors.initials: KR
authors.lastname: Morgan
authors.forename: Sarah L
authors.initials: SL
authors.lastname: Heath