The Syntheses and Structures of Ph4EN3 (E = P, As, Sb), an Example for the Transition from Ionic to Covalent Azides within the Same Main Group
作者:Ralf Haiges、Thorsten Schroer、Muhammed Yousufuddin、Karl O. Christe
DOI:10.1002/zaac.200500289
日期:2005.10
The compounds Ph4EN3 (E = P, As, Sb) were prepared from the corresponding halides by ion exchange in aqueous solution. [Ph4P]N3 crystallizes in the triclinic space group , while [Ph4As]N3·H2O and Ph4SbN3 crystallize in the monoclinic space group P21/n. In contrast to ionic [Ph4P]+[N3]− and [Ph4As]+[N3]−, the antimony atom in Ph4SbN3 is pentacoordinated and contains a covalently bound azide ligand. This
化合物 Ph4EN3 (E = P, As, Sb) 由相应的卤化物在水溶液中通过离子交换制备。[Ph4P]N3在三斜空间群中结晶,而[Ph4As]N3·H2O和Ph4SbN3在单斜空间群P21/n中结晶。与离子 [Ph4P] + [N3] - 和 [Ph4As] + [N3] - 相比,Ph4SbN3 中的锑原子是五配位的,并包含共价结合的叠氮化物配体。该族化合物可作为从离子到共价叠氮化物的一个例子,随着元素周期表中同一族的中心原子尺寸的增加。