(C5Me5)(2)UMe2, 1, reacts with 1 and 2 equiv of PhEEPh (E = S, Se) to form (C5Me5)(2)UMe(EPh) (E S, 2; Se, 3) and (C5Me5)(2)U(EPh)(2) (E = S, 4; Se, 5), respectively, with concomitant formation of MeEPh. Complexes 2, 3, and 5 form at ambient temperature, but the synthesis of 4 required heating to 65 degrees C. Addition of 2 equiv of PhTeTePh to 1 equiv of (C5Me5)(2)UMe2 generated the tellurium analogue of 4 and 5, namely, (C5Me5)(2)U(TePh)(2), 6, but when 1 was reacted with 1 equiv of PhTeTePh, C-H activation of the aryl ring occurred to form (C5Me5)(2)U(eta(2)-TeC6H4), 7, along with MeTePh and CH4.
(C5Me5)2UMe2(1)分别与1当量和2当量的Ph
EEPh(E = S, Se)反应,生成(C5Me5)2UMe(EPh)(E = S,2;Se,3)和(C5Me5)2U(EPh)2(E = S,4;Se,5),同时伴随生成M
EEPh。复合物2、3和5在室温下形成,但合成4需要加热至65摄氏度。将2当量的PhTeTePh与1当量的(C5Me5)2UMe2反应,生成4和5的
碲类似物,即(C5Me5)2U(TePh)2(6),但当1与1当量的PhTeTePh反应时,发生C-H键活化,生成(C5Me5)2U(η2-TeC6H4)(7),同时生成MeTePh和
CH4。