Reversible Coordination of Boron–, Aluminum–, Zinc–, Magnesium–, and Calcium–Hydrogen Bonds to Bent {CuL<sub>2</sub>} Fragments: Heavy σ Complexes of the Lightest Coinage Metal
作者:Alexandra Hicken、Andrew J. P. White、Mark R. Crimmin
DOI:10.1021/acs.inorgchem.7b00182
日期:2017.8.7
Mes, R = F, n = 0.5, [12·tol]; Ar = C6F5, R = Me, n = 1, [2·tol]; Ar = 2,6-Cl2C6H3, R = H, n = 0.5, [32·tol]). Reactions of [1–3n·tol] with boranes, alanes, a zinc hydride, a magnesium hydride, and a calcium hydride generate the corresponding σ complexes ([1–3·B], [3·B′], [3·Al], [3·Al′], [1–3·Zn], [1·Mg], and [1·Ca]). These species all form reversibly, being in equilibrium with the arene solvates in
已经制备了一系列带有电子缺陷的
β-二酮基
配体的
铜(I)配合物。该研究包括[ArNC(CR 3)} 2 CH}的Cu(η 2 -
甲苯)Ñ ](AR =
MES,R = F,Ñ = 0.5,[ 1 2 ·TOL ]的Ar = C 6 ˚F 5,R = Me,n= 1,[ 2·tol ]; Ar = 2,6-Cl 2 C 6 H 3,R = H,n= 0.5,[ 3 2 ·tol ])。[ 1 – 3 n ·tol的反应]与
硼烷,丙
氨酸,
氢化锌,
氢化镁和氢化
钙生成相应的σ配合物([ 1–3·B ],[3·B' ],[ 3·Al ],[ 3·Al' ],[ 1-3·Zn ],[ 1·Mg ]和[ 1·Ca ])。这些物质都可逆地形成,与溶液中的
芳烃溶剂化物处于平衡状态。除
钙络合物外,所有络合物均已通过单晶X射线衍射研究表征。在溶液中,铝,
锌,
镁和
钙衍
生物的σ-
氢化物在-0.12和-1.77 ppm之间共振(C