Chlorido[(E)-2-hydr-oxy-6-(isonicotinoyl-hydrazonometh-yl)phen-yl]mercury(II) monohydrate.

ABSTRACT: The asymmetric unit of the title compound, [Hg(C(13)H(10)N(3)O(2))Cl]·H(2)O, contains two independent mercury(II) complexes with slightly different conformations, related via a pseudo-inversion centre, and two water mol-ecules. The Hg(II) atoms show a typical linear geometry to a C atom of the benzene ring and to a Cl atom. A benzene C and the azomethine N atom chelate the Hg(II) atoms with weak intra-molecular Hg?N bonding distances of 2.735?(3) and 2.739?(3)?Å, respectively. The resulting five-membered metallacycles are nearly coplanar with the benzene rings [dihedral angles = 0.9?(1) and 0.7?(1)°], while the pyridine rings make dihedral angles with the benzene units of 58.17?(1) and 56.58?(1)°. In the crystal structure, the Hg(II) complexes are linked by hydr-oxy donor and pyridine acceptor groups into chains along [010]. The water mol-ecules connect the complexes through inter-molecular O-H?O(carbon-yl) bonds in the a-axis direction, and the azomethine H atoms donate towards the water O atoms, forming a three-dimensional network of inter-molecular O-H?N, O-H?O and N-H?O hydrogen bonds.

SUBMITTER: Bai SZ 

PROVIDER: S-EPMC2969284 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature