Synthesis and Structural Studies of Complexes of Cobalt Hexa-Thiocyanates of Tin (IV) and Titanium (IV)

Chemistry Department, M. L. K. College. Balrampur (U.P.)

Manuscript received 8 November 1974; accepted 18 February 1975

K₂Sn(NCS)₆, CoSn(NCS)₆ and CoM(NCS)₆XL (M = Sn(IV), Ti (IV),  L = pyridine(py), 3-cyano- pyridine(cpy), isonicotinic acid hydrazide(inh), nicotinamide(nia), ethylnicotinate(ent) and ethyl- enediamine(en) have been prepared and characterised by elemental analysis, magnetic moment, electronic and infrared spectral studies. These studies indicate the presence of N-bonded thio­cyanate in K₂Sn(NCS)₆, and bridged dithiocyanate in CoM(NCS)₆. CoM(NCS)₆XL have cationic anionic structure [CoL_x][Sn(NCS)₆] (X = 4 or 6) in which L is bonded to cobalt and thiocyanate to tin(IV) or titanium(IV), through nitrogen.