REACTIVITY OF RUTHENIUM CARBONYL DERIVATIVES OF LUTECIUM - MOLECULAR-STRUCTURE OF (THF)([1,3-(ME3SI)2C5H3]2LU(MU-OH))2

The reactivity of the ruthenium carbonyl derivatives of lutecium (THF) Cp2LuRu(CO)2Cp [Cp' = Cp (1) and 1,3-(Me3Si)2C5H3 (2)] has been studie d. It has been shown that the reactions of complex 1 with i-Pr2CO and of 2 with HCl, H2O, and HgCl2 are accompanied by cleavage of the Lu-Ru bond. The reaction of 2 with H2O gives {[1,3-(Me3Si)2C5H3]2Lu (mu-OH) }2 (3), which has been characterized by X-ray diffraction analysis (Mo K(alpha) radiation, R = 0.0280, 2750 reflections). The crystals are m onoclinic, a = 15.638(6) angstrom, b = 15.787(2) angstrom, c = 12.188( 1) angstrom, beta = 99.06-degrees, Z = 2, space group P2(1)/n. Centros ymmetric dimer 3 has two mu-OH ligands, and the Lu-O and Lu...Lu inter atomic distances are 2.264(4) angstrom (mean) and 3.579(1) angstrom, r espectively. The structure behavior of 3 in a THF solution has been di scussed.