作者:Ivor Wharf、Michel G. Simard
DOI:10.1016/0022-328x(87)85126-4
日期:1987.9
Tetrakis(p-methylthiophenyl)tin(IV) (A) and tetrakis(p-methoxyphenyl)tin(IV) (B) have been prepared and their vibrational spectra (400-100 cm−1) and X-ray crystal structures are reported. Both compounds are tetragonal with space group I, Z = 2. For (A), a = b = 13.553(4), c = 7.442(2) Å, and for (B), a = b = 14.180(4), c = 6.303(2) Å, both at 173 K. Both structures were solved by the direct method
制备了四(对甲基硫代苯基)锡(IV)(A)和四对(对甲氧基苯基)锡(IV)(B),并报道了其振动光谱(400-100 cm -1)和X射线晶体结构。两种化合物都是四边形,其空间组为I,Z =2。对于(A),a = b = 13.553(4),c = 7.442(2)Å,对于(B),a = b = 14.180(4),C= 6.303(2)Å,都在173 K时。这两种结构都通过直接方法求解,并通过全矩阵最小二乘法精炼为R = 0.040,A的观测反射为767 ,R = 0.019,A的观测反射为721。乙。这两个分子都与CH 3 S或CH 3 O基团在与苯环几乎共面的allexo构象中具有分子对称性。CH 3被CH 3 O取代后,对位取代基的尺寸增加,然后CH 3 S导致d的减小(SnC)从2.147(6)到2.136(4)和2.123(7)Å归因于这些同构紧密堆积结构中的分子间斥力增加。