In the title compound, [Zn(C(4)H(3)N(2)O(2))(2)(H(2)O)(2)], the Zn(II) ion is situated on a twofold rotation axis and exhibits a distorted octa-hedral coordination configuration. The equatorial plane contains two cis-oriented bidentate 1H-imidazole-4-carboxyl-ate ligands and the axial positions are occupied by two coordinated water mol-ecules. In the crystal structure, inter-molecular O-H⋯O and...

In the title compound, [Co(C(4)H(3)N(2)O(2))(2)(H(2)O)(2)], the Co(II) ion is located on a twofold rotation axis and shows a distorted octa-hedral coordination configuration, defined by two N,O-bidentate 1H-imidazole-4-carboxyl-ate ligands in the equatorial plane and two water mol-ecules in the axial positions. In the crystal, O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules into a three-dime...

In the title compound, [Ag(2)(C(5)H(2)N(2)O(4))(NH(3))(2)], each of the two Ag(I) atoms is coordinated by two N atoms from an ammonia mol-ecule and a 5-carb-oxy-1H-imidazole-4-carboxyl-ate ligand in an almost linear geometry, and by one carboxyl-ate O atom with a weak inter-action. The Ag atoms are assembled into a linear tetra-mer through Ag⋯Ag inter-actions. Each Ag tetra-mer is linked by fou...

The title compound, [Co(C(4)H(3)N(2)O(2))(2)(H(2)O)(2)], contains a Co(II) cation on a twofold rotation axis, exhibiting a distorted octa-hedral coordination geometry. The equatorial plane is formed by two N,O-bidentate 1H-imidazole-4-carboxyl-ate ligands and the axial positions are occupied by water mol-ecules. The crystal packing consists of a three-dimensional network stabilized by O-H⋯O and...

In the title compound, [Mn(C4H3N2O2)2(H2O)2], the Mn(II) ion is located on a twofold rotation axis and displays a distorted octa-hedral coordination environment, defined by two N,O-bidentate 1H-imidazole-4-carboxyl-ate ligands in the equatorial plane and two water mol-ecules in axial positions. In the crystal, O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules into a three-dimensional supra-mol...

In the title centrosymmetric mononuclear nickel(II) complex, [Ni(C(14)H(9)O(3))(2)(C(3)H(4)N(2))(2)(CH(3)CH(2)OH)(2)], the central Ni(II) ion lies on an inversion centre and is octa-hedrally coordinated. The equatorial plane is formed by two O atoms from two symmetry-related 2-benzoyl-benzoate ligands and two N atoms from two symmetry-related imidazole ligands, whereas the axial positions are o...

Synthesis and characterization of four iridium(III)-octaethylporphyrins and a π-extended iridium(III)-benzoporphyrin are presented. Strong room-temperature phosphorescence was observed for all of the complexes with quantum yields of up to 30 %. Axial ligands were introduced to tune the photophysical properties and the solubility. Complexes bearing lipophilic ligands such as pyridine or N-(n-but...

The coordination geometry of the Cd(II) atom in the title complex, [Cd(NCO)(2)(C(10)H(14)N(4))(2)](n) or [Cd(NCO)(2)(bimb)(2)](n), where bimb is 1,4-bis-(imidazol-1-yl)butane, is distorted octa-hedral with the Cd(II) atom located on an inversion center and connected to four N atoms from the imidazole units of four symmetry-related bimb ligands and two O atoms from two symmetry-related NCO(-) li...

In the title mononuclear complex, [Ni(C(8)H(7)O(3))(2)(C(3)H(4)N(2))(2)], the Ni(II) atom, lying on a twofold rotation axis, is coordinated by four carboxyl-ate O atoms from two bidentate 3-hydroxy-phenylacetato ligands and two N atoms from two imidazole mol-ecules in a distorted octa-hedral geometry. A three-dimensional network is formed via inter-molecular O-H⋯O and N-H⋯O hydrogen bonds and π...

The Cu(II) ion in the title compound, [CuBr(C(6)H(10)N(2))(4)]Br, is coordinated in a square-based-pyramidal geometry by the N atoms of four imidazole ligands and a bromide anion in the apical site. Both the Cu(II) and Br(-) atoms lie on a crystallographic fourfold axis. In the crystal, the [CuBr(C(6)H(10)N(2))(4)](+) complex cations are linked to the uncoordinated Br(-) anions (site symmetry [...