In the title complex, [Cu(C(9)H(6)N(3)O(3)S)(2)(H(2)O)(4)]·2H(2)O, the Cu(II) atom lies on an inversion centre and is coordinated by four water mol-ecules in equatorial positions and two N atoms from two 4-(4-pyrid-yl)pyrimidine-2-sulfonate ligands in apical positions. The asymmetric unit contains half of the complex and one free water mol-ecule. The water mol-ecules, including the uncoordinate...

The title compound, [CuCl(2)(C(6)H(5)N(5))(2)(H(2)O)(2)]·2H(2)O, was synthesized by hydro-thermal reaction of CuCl(2) with 3-(2H-tetra-zol-5-yl)pyridine. The Cu(II) cation, located on an inversion center, is coordinated by two Cl(-) ions, two N atoms from two 5-(3-pyridinio)tetra-zolate zwitterions and two O atoms from two water mol-ecules in a distorted octa-hedral geometry. In the crystal, mo...

In the title compound, [Cu(C(14)H(9)N(2)O(2))(2)]·2H(2)O, the Cu(II) ion lies on a centre of symmetry and is four-coordinated by two N atoms and two O atoms from two 2-(1H-benzimidazol-2-yl)benzoate ligands in a square-planar environment. The benzimidazol and benzyl rings form a dihedral angle of 42.8 (5)°. The mol-ecule contains two H-bonded carboxyl O acceptors and two H-bonded N-H donors in ...

In the title compound, [Cu(C(2)HCl(2)O(2))(C(10)H(8)N(2))(2)](C(2)HCl(2)O(2))·2H(2)O, the Cu(II) ion is bonded to two N,N'-bidentate 2,2'-bipyridyl ligands and one O-monodentate 2,2-dichloro-acetate anion in a distorted CuON(4) trigonal-bipyramidal geometry, with the O atom occupying an equatorial site. In the crystal, the components are linked by O-H⋯O and O-H⋯Cl hydrogen bonds.

The title compound, poly[[diaqua-copper(II)]-μ(3)-hydrogenphosphito], [Cu(HPO(3))(H(2)O)(2)](n), (I), has been prepared by hydro-thermal synthesis at 393 K. Its non-centrosymmetric polymorph structure, (II), was known previously and has been redetermined at 193 (2) K [El Bali & Massa (2002 ▶). Acta Cryst. E58, i29-i31]. The Cu atoms in (I) and (II) are square-pyramidal coordinated. A distorted ...

The title six-coordinated distorted octa-hedral complex, [Cu(C(6)H(3)N(2)O(4))(2)(C(10)H(8)N(2))]·2H(2)O, consists of two 3-carboxy-pyrazine-2-carboxyl-ate anions and one 2,2'-bipyridine ligand. There is a twofold rotation axis positioned at the Cu(II) center. The N atoms of the pyrazine ring occupy the axial positions and two proton-transferred O atoms of tbe acid together with the two N atoms...

The chiral macrocyclic amines R-L and S-L derived from the 3 + 3 condensation of 2,6-diformylpyridine and (1R,2R)-1,2-diaminocyclohexane or (1S,2S)-1,2-diaminocyclohexane form enantiopure trinuclear Ni(ii) and Cu(ii) complexes [Ni3(L)(H2O)2Cl5]Cl and [Cu3(L)Cl4]Cl2 and form the dinuclear complex [Zn2(L)Cl2](ZnCl4) with Zn(ii). The X-ray crystal structures of these complexes indicate remarkably ...