Stabilisation of [W
<sup>V</sup>
F
<sub>4</sub>
]
<sup>+</sup>
by N‐ and P‐Donor Ligands: Second‐Order Jahn‐Teller Effects in Octacoordinate d
<sup>1</sup>
Complexes
作者:Douglas Turnbull、Stacey D. Wetmore、Michael Gerken
DOI:10.1002/chem.202100863
日期:2021.8.5
the solid state. New geometry indices for octacoordinate complexes (τ8 and τ8′) are introduced, allowing for the facile differentiation of trigonal-dodecahedral (TD) and square-antiprismatic (SA) geometries. This has disambiguated the SA geometries of [WF4(L)4]+ and the geometries of a series of previously reported d0 and d1 MA4B4 complexes. Computational (DFT−B3LYP) studies of [WF4(PH3)4]2+/+ and
阳离子氟钨 (V) 配合物的第一个分离实例被报道为八配位 [WF 4 (L) 4 ] + (L=C 5 H 5 N, P(CH 3 ) 3 )。[WF 4 (NC 5 H 5 ) 4 ] +阳离子在 WF 5 (NC 5 H 5 ) 2与 [(CH 3 ) 3 Si(NC 5 H )反应后合成为其 [O 3 SCF 3 ] -盐5 )][O3 SCF 3 ]在过量Ç 5 ħ 5 N,而[WF 4 P(CH 3)3 } 4 ] +是直接从WF访问6在与(CH反应3)3的SiO 3 SCF 3和过量的P(CH 3 ) 3。这些盐通过固态的 X 射线晶体学和拉曼光谱表征。八坐标复合物的新几何指数(τ 8和 τ 8') 的引入,允许轻松区分三角十二面体 (TD) 和方形反棱柱 (SA) 几何形状。这消除了 [WF 4 (L) 4 ] +的 SA 几何形状和一系列先前报道的 d 0和 d 1 MA