Insertion of ethylisocyanate at the tungsten-chlorine bond.Crystal structure of 1,3,5-triethyl-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione

摘要

The reaction of tungsten hexachloride with excess ethyl isocyanate in dichloroethane leads to the insertion of three ligand molecules at one of the tungsten-chlorine bonds.The data of elemental analysis and IR spectroscopy confirm that the thermolysis of the reaction mixtue affords the WCl_49L_3Cl) complex (I),where L=-N(Et)C(O)-.The structure of the chain of inserted molecules in I is established on the basis of IR and NMR data,and the results of X-ray diffraction analysis of crystals of an organic product (II) of the hydrolysis of I.According to the latter,compound(II)is a derivative of s-triazine-1,3,5-triethyl-1,3,5-triazine-2,4,6-(1H,3H,5H)-trione.