Preparation and characterisation of tetraphenylphosphonium and tetraphenylarsonium halogenoargentates(<scp>I</scp>), including a new lodoargentate(<scp>I</scp>) cluster, [Ag<sub>4</sub>I<sub>8</sub>]<sup>4–</sup>, containing three- and four-co-ordinated silver(<scp>I</scp>)
作者:Göran Helgesson、Susan Jagner
DOI:10.1039/dt9900002413
日期:——
19(3)°, and a= 14.546(4), b= 8.072(2), c= 19.854(5)Å, β= 102.73(2)°, respectively. The tetranuclear [Ag4I8]4– anion is centrosymmetric and can be described in terms of two edge-sharing silver(I)–iodide tetrahedra, each linked via a common edge to an approximately planar silver(I)–iodide triangle. In the latter the silver(I) atom is displaced 0.054(1)(1) and 0.026(1)Å(2) from the plane through the three iodide
含有三和四配位的银(I)的新的碘精酸盐(I)簇[Ag 4 I 8 ] 4–已与四苯基phosph和四苯基ar阳离子进行了分离,并通过晶体结构测定对其进行了表征。四(四苯基phosph)和四(四苯基ar)六-μ-碘-二-碘四-四有色酸盐(I)[(1)和(2)]在三斜空间群P中是同构的且结晶,a = 13.453(7) ,b = 16.607(9),c = 11.068(7)Å,α= 102.83(4),β= 103.94(4),γ= 82.96(4)°,Z= 1,a = 13.446(3),b = 16.712(3),c = 11.293(4)Å,α= 103.36(2),β= 103.84(2),γ= 83.43(2)°,Z = 1,分别。在形成[PPh 4 ] 4 [Ag 4 I 8 ]和[AsPh 4 ] 4 [Ag 4 I 8 ]期间从溶液中结晶的初始相为[PPh 4 ] [Ag 3