It is the prime instinct of scientist to be curious to understand the natural phenomena occurring around him. Most researches are outcome of his curiosity. Coordination compounds such as chlorophyll hemoglobin, vitamin B12 etc. are acting as metalloenzyme. These have metal ions coordinated through nitrogen and oxygen so in order to understand a large amount of work has been appeared in literature on coordination compounds with nitrogen-oxygen donar ligands. Recently sulphur is the third element playing its role in natural phenomena.