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

摘要

Multifunctional ligand 5-cyano-6-(-4-pyridyl)-2-thiouracil (L) was prepared and allowed to react with trans (Co(en)_2Cl_2)~+Cl~- resulting into (Co(en)_2LCl)~(2+) centre dot 2Cl~- which upon further reaction with equimolar ratio of ligand (L) gave the complex (Co(en)_2L_2)~(3+) centre dot 3Cl~-. These metal complexes were then separately reacted with thymine and adenine bases. Complexes thus prepared after characterization by their elemental analysis, FAB mass and spectral (IR, ~1HNMR, UV-visible) data were studied for their powder X-ray diffraction and optical microscopic characteristics.