THE REACTIONS OF [MOCL(GECL3)(CO)(3)(NCME)(2)] WITH NEUTRAL BI- AND TERDENTATE DONOR LIGANDS

The reaction of [MoCl(GeCl3)(CO)(3)(NCMe)(2)] with an equimolar quanti ty of L^L {L^L = 2,2'-bipy, 1,10-phen, Ph(2)P(CH2)(n)PPh(2) (n = I or 2)} in CH2Cl2 at room temperature gave either [MoCl(Gecl(3))(CO)3(L^L) ] (L^L = 2,2'-bipy or 1,10-phen) (1 and 2) or [MoCl(GeCl3,)(CO)(2) (NC Me)(L^L){L^L = Ph(2)P(CH2)(n)PPh(2) (n = 1 or 2) (3 or 4), respectivel y. Equimolar quantities of [MoCl(GeCl3)(Co)(2)(NCMe){Ph(2)p(CH2)ph(2)} ] (3) and L^L CL^L = 2,2'-bipy or Ph(2)P(CH)(2)PPh(2)} react in CH2Cl2 at room temperature to afford the cationic complexes [Mo(GeCl3)(CO)(2 ){Ph(2)P(CH2) PPh(2)}(L^L)Cl (5 and 6) in good yield. The cationic nat ure of 6 was established by chloride exchange by reacting Na[BPh(4)] w ith 6 in acetonitrile to give the tetraphenylborate complex [Mo(GeCl3) (Co)(2){Ph(2)P(CH2)PPh(2)}2[BPh(4)] (7). Reaction of equimolar quantit ies of [MoCl(GeCl3) (CO)(3)(NCMe)(2)] and PhP(CH(2)CH(2)PPh(2))(2) in CH2Cl2 at room temperature afforded the dicarbonyl complex [MoCl(GeCl3 )(CO)(2){PhP(CH(2)CH(2)PPh(2))(2)}] (8) in good yield.