XRD and optical microscopic studies of Co(III) complexes containing 5-cyano-6-(4-pyridyl)-2-thiouracil, thymine and adenine bases

Multifunctional ligand 5-cyano-6-(-4-pyridyl)-2-thiouracil (L) was prepared and allowed to react with trans [Co(en)(2)Cl-2]Cl-+(-) resulting into [Co( en)(2)LCl](2+). 2Cl(-) which upon further reaction with equimolar ratio of ligand [L] gave the complex [Co(en)(2)L-2](3+). 3Cl(-). These metal complex es were then separately reacted with thymine and adenine bases. Complexes t hus prepared after characterization by their elemental analysis, FAB mass a nd spectral (IR, (HNMR)-H-1, UV-visible) data were studied for their powder X-ray diffraction and optical microscopic characteristics.