PREPARATION AND STRUCTURE OF CHLORO [N,N '-ETHYLENEBIS(SALICYLIDENEIMINATO)] TETRAHYDROF URANTITANIUM (III)

The title complex has been synthesized by reaction of TiCl3-3THF with mien Na-2 in THF. The solution of this compound, which is very air sensitive, is able to exist for a long time when free from air. Single crystals were obtained in ether and THF mixed solvents. Crystal structure of the complex has been determined by the direct method from diffractometer data and refined by the least square method to final R = 0.086 and R-w = 0.066. The crystals are orthorhombic, space group D-2h(16)-Pbnm with a = 7.458(2), b = 14.075(8), c = 18.752(2) angstrom; V = 1938(2) angstrom(3), z = 4. Discrete molecule of Ti(salen)Cl. THF which has mirror symetry in itself sits on crystallography mirror. The coordinating geometry of titanium is pseudo octahedral. The reason why the reaction of TiC1 center dot 3THF with salen-H-2 only gives oxidized product has been found out. The reactions between the complex and CO2 or AIR, were also studied.