摘要:
MCl(5)(M = Nb,1a; M = Ta,1b)与1,2-二烷氧基烷烃[即MeO(CH(2))(2)OMe(dme),EtO(CH( 2))(2)OEt,MeOCH(2)CH(Me)OMe,MeO(CH(2))(2)OCH(2)Cl,MeO(CH(2))(2)O(CH(2) )(2)OMe(二甘醇二甲醚)]严格取决于化学计量。在1:1摩尔比的反应中,发生单个CO键断裂,导致烷基氯和配合物的形成[上部键1起始] MCl(4)[O(R)CH(R')CH(2)O ] [上键1末端] [M = Nb,R = Me,R’= H,3a;M = Ta,R = Me,R'= H,3b;M = Nb,R = Et,R'= H,5;M = Nb,R = R'= Me,6;M = Nb,R = CH(2)Cl,R'= H,7;M = Nb,R =(CH(2))(2)O(Me)NbCl(5),R'= H,