Nitrene-Transfer Chemistry to C–H and C═C Bonds Mediated by Triangular Coinage Metal Platforms Supported by Triply Bridging Pnictogen Elements Sb(III) and Bi(III)
作者:Meenakshi Sharma、Reece M. Fritz、Joseph O. Adebanjo、Zhou Lu、Thomas R. Cundari、Mohammad A. Omary、Amitava Choudhury、Pericles Stavropoulos
DOI:10.1021/acs.organomet.3c00493
日期:2024.3.25
explored in stabilizing Cu(I) and Ag(I) sites and facilitating nitrene-transfer chemistry. Compounds [(TMG3trphen-E)M3(μ-X)3] (M = Cu(I), Ag(I); X = Cl, Br, I) have been generated upon extraction of M3(μ-X)3 units from MX sources, exhibiting support of the crown-shaped M3(μ-X)3 fragment by M–NTMG bonds and triply bridging E → M3 interactions. Orbital interactions between Cu(I) sites and NTMG residues
具有重磷元素(E = Sb(III)、Bi(III))和四甲基胍基 (TMG) 臂的三足配体 (TMG 3 trphen-E) 已被探索用于稳定 Cu(I) 和 Ag(I) 位点并促进氮烯转移化学。提取M 3 ( μ- X) 3单位来自 MX 来源,表现出通过 M–N TMG键和三桥联 E → M 3相互作用对冠形 M 3 (μ-X) 3片段的支持。 Cu(I) 位点和 N TMG残基之间的轨道相互作用比 Sb/Bi → Cu 3供体之间的 Sb 5s 或 Bi 6s 轨道与混合 Cu 4 s /3d 轨道之间的相互作用更占主导地位,计算出的 Sb → Cu 的相互作用能量更大3 .非卤化铜化合物 [(TMG 3 trphen-E) 2 Cu 2 ] 2+ 2Y – (Y = PF 6 , B(C 6 F 5 ) 4 ) 通过 TlPF 6脱氯或应用无卤化物 Cu 合成(I) TMG