The transition-metal nitrido complexes [Re(N)(PR3)(S2CNRâ²2)2] (PR3 = PMe2Ph, Râ²Â = Me; PR3 = PMePh2, Râ²Â = Et 1), [Re(N)(Cl)(PMePh2)2(S2CNMe2)] 2, [Mo(N)(S2CNR2)3] (R = Me or Et) and [NBun4][Os(N)(1,2-S2C6H4)2] reacted with the strong Lewis acid B(C6F5)3 to yield the adducts [ReNB(C6F5)3}(PR3)(S2CNRâ²2)2] (PR3 = PMe2Ph, Râ²Â = Me 3*; PR3 = PMePh2, Râ²Â = Et 4), [ReNB(C6F5)3}(Cl)(PMePh2)2(S2CNMe2)] 5, [MoNB(C6F5)3}(S2CNR2)3] (R = Me 6 or 7) and [NBun4][OsNB(C6F5)3}(1,2-S2C6H4)2] 8 (* indicates that the compound has been structurally characterised). Reactions of 3, 6 and 8 with competing strong Lewis bases have revealed differences in the stability of the MNâB interaction depending on the steric crowding around the metal centre. Reaction of 8 with MeO3SCF3 causes the formation of [OsNB(C6F5)3}1,2-(S)(SMe)C6H4}(1,2-S2C6H4)] 9.
过渡
金属
氮化物配合物[Re(N)(PR3)(
S2CNRâ²2)2](PR3Â =Â
PMe2Ph,Râ²Â = Me;1), [Re(N)(Cl)(
PMePh2)2(
S2CNMe2)] 2, [Mo(N)(
S2CNR2)3] (RÂ =Â Me or Et) and [NBun4][Os(N)(1、2-
S2C6H4)2]与强
路易斯酸 B(
C6F5)3 反应,生成加合物[ReNB( )3}(PR3)(
S2CNRâ²2)2](PR3Â =Â
PMe2Ph,Râ²Â = Me 3*;PR3 =Â
PMePh2,Râ²Â = Et 4)、[ReNB( )3}(Cl)(
PMePh2)2(
S2CNMe2)] 5、[MoNB( )3}(
S2CNR2)3] (RÂ =Â Me 6 或 7)和 [NBun4][OsNB( )3}(1,2-
S2 )2] 8(* 表示化合物已完成结构表征)。3、6 和 8 与竞争性强路易斯碱的反应揭示了 MNâB 相互作用稳定性的差异,这取决于
金属中心周围的立体拥挤度。8 与 MeO3SCF3 反应会生成 [OsNB( )3}1,2-(S)(SMe) }(1,2-
S2 )] 9。