A cobalt (II) mononuclear complex was synthesized by two-nitrobenzoic acid and pyrazine-
two-carboxamide ligands in the presence of sodium bicarbonate and aqueous solution of …

In the polymeric title compound,[HgCl2 (C5H5N3O) 2] n, the HgII atom (site
symmetry\overline {1}) adopts a distorted trans-HgN2Cl4 octahedral coordination geometry …

In the crystal of the title compound,{[Zn (C5H5N3O) 2 (H2O)](NO3) 2} n, the ZnII cation is N,
O-chelated by two pyrazine-2-carboxamide (PCA) ligands and is further coordinated by one …

The title complex,[ZnBr2 (C5H5N3O) 2], shows crystallographic mirror symmetry with the Zn
atom and the two bromine ligands located on the mirror plane. The Zn atom is four …

In the title compound,[Cd (NO3) 2 (C5H5N3O) 2 (H2O) 2]· 2C5H5N3O, the CdII cation is
located on a twofold rotation axis and is coordinated by two pyrazine-2-carboxamide ligands …

In the crystal of the title compound,[ZnCl2 (C5H5N3O) 2], the molecule has m symmetry, with
the ZnII cation and Cl− anions located on the mirror plane. The ZnII cation is coordinated by …

The asymmetric unit of the title complex,[Co (C5H5N3O) 2 (H2O) 2](NO3) 2, contains one
half of a CoII cationic unit and a nitrate anion. The entire [Co (C5H5N3O) 2 (H2O) 2] 2+ …

In the crystal of the title polymeric compound,[Cu2 (SO4) 2 (C5H5N3O) 2 (H2O) 4] n, two
independent CuII atoms are located on individual inversion centers. One CuII atom is …