Far-infrared, Raman, and Mössbauer spectra of trihalogenostannate(<scp>II</scp>) complexes, [SnX<sub>3</sub>]<sup>–</sup>, [SnX<sub>2</sub>Y]<sup>–</sup>, and [SnXYZ]<sup>–</sup>, with different cations
作者:M. Goldstein、G. C. Tok
DOI:10.1039/j19710002303
日期:——
trihalogeno-complexes of tin(II), [SnXYZ]–(X, Y, or Z = Cl, Br, or I), have been prepared as salts of one or more of the cations [Et4N]+, [Bun4N]+, and [Ph4As]+. Their far-i.r. (to 80 cm–1) and Raman spectra show that discrete pyramidal trihalogeno-anions are present in solution. This structure is retained in the solid state for the [Bun4N]+ salts, but with [Ph4As]+ and [Et4N]+ cations there is increasing
锡(II),[SnXYZ] –(X,Y或Z = Cl,Br或I)的所有十种二元和混合三卤代配合物均已制成一种或多种阳离子[Et 4 N] +,[Bu n 4 N] +和[Ph 4 As] +。他们的远红外光谱(至80 cm –1)和拉曼光谱表明,溶液中存在离散的金字塔型三卤代阴离子。对于[Bu n 4 N] +盐,该结构保留为固态,但具有[Ph 4 As] +和[Et 4 N] +阳离子之间的固态相互作用增加,导致对称性降低。119 SnMössbauer数据也显示了这一点。对于给定阳离子的盐,异构体的位移随卤化物配体的电负性之和表现出规则的变化。在每种情况下均观察到四极分裂,并且显示出与每个系列中的异构体位移成反比关系。这很容易解释为四极分裂-电负性相关的结果。