ABSTRACT
In the crystal structure of the title compound, [Mg(CHN(4))(2)(H(2)O)(4)], the Mg(II) atom is six-coordinated by two N atoms from two tetra-zolide anions and four O atoms from four coordinated water mol-ecules in a slightly distorted octa-hedral geometry. The Mg atom is located on centres of inversion whereas the tetra-zolide anion and the water mol-ecules occupy general positions. The crystal packing is stabilized by intermolecular O-Hâ¯N hydrogen bonding between the tetra-zolide anions and the coordinated water mol-ecules.
ABSTRACT
In the title dinuclear Cd(II) complex, [Cd(2)(C(2)N(4)O(2))(2)(C(10)H(8)N(2))(2)(H(2)O)(2)], each Cd atom is in a slightly distorted octa-hedral coordination by two N atoms and one O atom of two 1H-tetra-zole-5-carboxyl-ate (TZC) ligands, two N atoms of a 2,2'-bipyridyl ligand and one water O atom. The TZC ligand acts in a tridentate N,O-chelating N-bridging mode to two symmetry-equivalent Cd(II) atoms. The complex reveals mol-ecular C(i) symmetry. Extensive O-Hâ¯O hydrogen bonding plays an important role in the crystal packing.
ABSTRACT
In the centrosymmetric title compound, [Co(C(7)H(4)NO(4))(2)(C(12)H(9)N(5))(2)(H(2)O)(2)]·2H(2)O, the Co(II) atom, located on an inversion center, is coordinated by two N atoms [Co-N = 2.155â (3)â Å] and four O atoms [Co-O = 2.099â (2)-2.117â (3)â Å] in a distorted octa-hedral geometry. Inter-molecular N-Hâ¯O, O-Hâ¯N and O-Hâ¯O hydrogen bonds link the components into a three-dimensional supramolecular framework.
ABSTRACT
In the title compound, [Cd(C(12)H(8)N(5))(2)(H(2)O)(4)]·2H(2)O, the Cd(II) atom is located on an inversion center and is coordinated by the two N atoms [Cd-N = 2.278â (2)â Å] and four O atoms [Cd-O = 2.304â (2)-2.322â (2)â Å] in a distorted octa-hedral geometry. Inter-molecular O-Hâ¯O and O-Hâ¯N hydrogen bonds link the complex into a three-dimensional supra-molecular framework.
ABSTRACT
In the title compound, [Ni(C(12)H(8)N(5))(2)(H(2)O)(4)]·2H(2)O, the Ni(II) atom is coordinated by the two N atoms [Ni-N = 2.094â (3)â Å] and four O atoms [Ni-O = 2.063â (3)-2.083â (2)â Å] in a distorted octa-hedral geometry. The mol-ecule is centrosymmetric and the Ni(II) atom is located on an inversion center. Inter-molecular O-Hâ¯N and O-Hâ¯O hydrogen bonds link the complex into a three-dimensional supra-molecular framework.