Mössbauer and T.G.A studies of some hexahalotellurate(IV) salts
作者:E.R. Clark、W.R. McWhinnie、J. Mallaki、N.S. Dance、C.H.W. Jones
DOI:10.1016/s0020-1693(00)88469-8
日期:1980.1
of tellurium(IV) oxide with concentrated hydrochloric acid gives a solution from which (Ph4As)2TeCl6 may be precipitated. This material has 125Te Mossbauer parameters which suggest that the anion may be distorted towards, C3v symmetry. By contrast the hexabromotellurate and the hexachlorotellurate formed when a benzene solution of TeCl4 is treated with Ph4AsCl are ‘normal’. TGA studies show that the
氧化碲(IV)与浓盐酸的反应生成了一种溶液,从该溶液中可以沉淀出(Ph4As)2TeCl6。该材料的参数为125 Te Mossbauer,这表明阴离子可能朝C3v对称方向变形。相比之下,当TeCl4的苯溶液用Ph4AsCl处理时形成的六溴碲酸盐和六氯碲酸盐是“正常”的。TGA研究表明,六氯和六溴代碲酸铵和四甲基铵或多或少干净地分解为四卤化碲和卤化铵。四菌根盐的分解更复杂。