The reactions of TiCl3, and of UF4 with TiCl3 in liquid ammonia: unusual coordination spheres in [Ti(NH3)8]Cl3·6NH3 and [UF(NH3)8]Cl3·3.5NH3

Abstract

TiCl₃ and NH₃ form octaammine titanium(III) chloride ammonia (1/6), [Ti(NH₃)₈]Cl₃·6NH₃, which is the first structurally characterized octaammine complex of a transition metal. An excess of TiCl₃ reacts with UF₄ in liquid NH₃ and forms octaammine fluorido uranium(IV) chloride ammonia (1/3.5), [UF(NH₃)₈]Cl₃·3.5NH₃. It shows a distorted threefold-capped trigonal-prismatic coordination sphere around U(IV).