Metall(II)-Diazin Komplexe: Kristallstrukturen von Cd(pyrazin)Br2, Cd(pyrazin)I2, Cu(pyrazin)Cl2 und Cd(pyrimidin)(NO3)2·2H2O/ Metal(II) Diazine Complexes: Crystal Structures of Cd(pyrazine)Br2, Cd(pyrazine)I2, Cu(pyrazine)Cl2, and Cd(pyrimidine)(NO3)2·2H2O.

Abstract

Abstract Single crystals of the compounds Cd(pyrazine)Br2, Cd(pyrazine)I2, Cu(pyrazine)Cl2 and Cd(pyrimidine)(NO3)2·2H2O were obtained by crystallisation from aqueous solutions of the metal salts and solutions of the respective diazine in an organic solvent. The structures of the pyrazine complexes consist of “supramolecular” networks of -M-pyrazine-M-and -M -(μ2-Hal)2-M-chains. The pyrimidine complex shows a three dimensional network due to -M-pyrimidine-M-chains connected via hydrogen bonds between H(H2O) and O(ONO2).