(Benzoato-κO)chlorido[(-)-sparteine-κN,N']zinc(II).

The title complex, [Zn(C(7)H(5)O(2))Cl(C(15)H(26)N(2))], used for the magnetic dilution of the analogous Cu(II) complex, was synthesized through a direct synthesis route. The coordination geometry around Zn(II) is best described as distorted tetra-hedral, the largest deviation arising from the (-)-sparteine ligand, as is invariably found in complexes containing this rather rigid mol-ecule. The benzoate anion behaves as a monodentate ligand, with a non-coordinating Zn⋯O separation of 2.

Bis{μ-2,2'-[(3-aza-pentane-1,5-di-yl)bis-(nitrilo-methyl-idyne)]diphenolato}dicopper(II) dimethyl sulfoxide disolvate.

The title compound, [Cu(2)(C(18)H(19)N(3)O(2))(2)]·2C(2)H(6)OS or [Cu(2)(SalenN(3)H)(2)]·2DMSO, where SalenN(3)H is the multidentate Schiff base 2,2'-[(3-aza-pentane-1,5-di-yl)bis-(nitrilo-methyl-idyne)]diphenolate dianion and DMSO is dimethyl sulfoxide, is a solvated dinuclear Cu(II) complex. The neutral complex is built from two Cu(SalenN(3)H) units related by an inversion center. All heteroatoms in the Schiff bases coordinate the Cu(II) ions, which display highly distorted trigonal bipyramidal geometries.

Magnetic properties and crystal structure of a one-dimensional phase of tetrakis(mu2-benzoato-O,O')-bis(dimethyl sulfoxide)dicopper(II).

A new crystalline polymorphic phase of tetrakis(mu2-benzoato-O,O')-bis(dimethyl sulfoxide)dicopper(II) was obtained by direct synthesis, in space group P2(1)/n. The copper coordination is in a slightly distorted square pyramidal geometry with an intramolecular Cu..

The triclinic polymorph of dibromo[(-)-sparteine-kappa2N,N']zinc(II).

The title compound, [ZnBr(2)(C(15)H(26)N(2))], when synthesized starting from Zn(0), is obtained in two polymorphic forms, one belonging to space group P2(1)2(1)2(1) and one to P1. The present contribution deals with the triclinic phase, which is isostructural with the orthorhombic form but presents a larger metal-metal intermolecular separation; the Zn.Zn distance is 7.