Various metal complexes containing transitional metal elements have been prepared. Using shlenk line technique . Spectroscopic analysis by IR and NMR shows that two types of diphosphine co-ordinated metal clusters have been obtained,one having chelating mode of binding [Fe3SeTeCO)7{(PPh2)(C5H4)Fe(C5H4)(PPh2)}] ,and the another is having mono dentate co-ordination [Fe3Te2(CO)8{(PPh2) (C5H4)Fe(C5H4)(PPh2)}]
