Synthesis, Crystal Structure and Antimicrobial Activities of Di ((E)-2-(Pyridine-2-Ylmethylene) Hydrazinecarboxamide) Cobalt (II) Dichloride Trihydrate
J. Josephine Novina
Department of Physics, Idhaya College for women, Kumbakonam-1, Tamilnadu, India
G. Vasuki *
Department of Physics, Kunthavai Naachiar Government Arts College (W) (Autonomous), Thanjavur-7, Tamilnadu, India
M. Suresh
Department of Chemistry, Jamal Mohamed College, Tiruchirappalli-20, Tamilnadu, India
M. Syed Ali Padusha
Department of Chemistry, Jamal Mohamed College, Tiruchirappalli-20, Tamilnadu, India
Katharina M. Fromm
Department of Chemistry, University of Fribourg, Way Muse 9, 1700 Fribourg, Switzerland, Fribourg Center for Nanomaterials, FriMat, University of Fribourg, Way Muse 3, 1700 Fribourg, Switzerland
A. Crochet
Department of Chemistry, University of Fribourg, Way Muse 9, 1700 Fribourg, Switzerland, Fribourg Center for Nanomaterials, FriMat, University of Fribourg, Way Muse 3, 1700 Fribourg, Switzerland
*Author to whom correspondence should be addressed.
Abstract
The title compound [Co (C7H8N4O)2]Cl2.3H2O, has been synthesized and characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. The title compound crystallizes in a triclinic, space group P-1 with a = 9.3547(5) Å, b = 9.8985(5) Å, c = 12.8840(7) Å, α=106.033(4)º, β = 103.916(4)º, γ = 95.717(4)º, V = 1095.20(10) Å3, Z=2, R = 0.0255 and wR = 0.0687. In the title compound there are two crystallographically independent cations and anions and three water molecules in the asymmetric unit. The CoII ion has a distorted octahedral coordination environment and is surrounded by four N atoms and two O atoms in a tridentate manner. In the crystal, N—H…Cl, N—H…O, O—H…Cl and O—H…O hydrogen bonds link the complex cations, chloride anions and solvent water molecules into a three-dimensional network. The preliminary antimicrobial activities were studied.
Keywords: X-ray diffraction, octahedral coordination, tridentate, hydrogen bonds, antimicrobial activity