Organolanthanoids: XXII. The synthesis and X-ray structure of dimeric [YbCp2F(THF)]2 (Cp=cyclopentadienyl; THF=tetrahydrofuran)
作者:Glen B. Deacon、Stuart C. Harris、Gerd Meyer、Dirk Stellfeldt、Dallas L. Wilkinson、Gerd Zelesny
DOI:10.1016/s0022-328x(97)00584-6
日期:1998.2
YbCp2(DME) (Cp=cyclopentadienyl; DME=1,2-dimethoxyethane) with perfluorodecalin or perfluoro(methylcyclohexane) in THF yields [YbCp2F(THF)]2. These are the first examples of C–F activation of saturated perfluorocarbons by a lanthanoid organometallic. The X-ray crystal structure of [YbCp2F(THF)]2 (monoclinic, P21/c, a=7.9901(12), b=20.411(4), c=8.5957(12) Å; β=104.70(2)°, Z=2, R1=0.0495, for 1107 observed
YbCp 2(DME)(Cp =环戊二烯基; DME = 1,2-二甲氧基乙烷)与全氟萘烷或全氟(甲基环己烷)在THF中的反应生成[YbCp 2 F(THF)] 2。这些是镧系有机金属对饱和全氟化碳进行CF活化的第一个例子。[YbCp 2 F(THF)] 2的X射线晶体结构(单斜晶系,P 2 1 / c,a = 7.9901(12),b = 20.411(4),c = 8.5957(12)Å; β = 104.70 (2)°,Z = 2,R 1= 0.0495,对于1107个观测数据)显示该复合物为二聚体,带有桥接的氟化物和formal的形式为9的配位。YbCp 2 F也已经通过用AgF或HgF 2氧化YbCp 2(DME)获得。