The action of pentafluorophenylmagnesiurn bromide on tin (~v) chloride yields tetrakispentafluorophenyltin and pentafluorophenyltin chlorides, whose hydrolysis products are described. ... IN a preliminary Communication we described the preparation of tetrakispentafluorophenyltin and the halides (C,F,),SnCl and (C,F,),SnCl. Further public- ations have since appeared in the same ... 1 J. M. Holmes, R. D. Peacock, and JC Tatlow, Proc. Chem. Soc., 1963, 108. a R. D. ...