R、S-三[N-(邻-氧α-萘亚甲基)-α-苯乙胺]合钴的合成、晶体结构及分子绝对构型

合成了R,S一三N-(邻-氧α-萘亚甲基)-α-苯乙胺]合钴。x射线单晶衍射衍射测定了晶体结构及分子的绝对构型。晶体属正交晶系,D_2~4-P2_12_12_1空间群,晶胞参数:α=12.587(3),b=14.166(3),c=25.652(14)(?),v=4574.2(?)~3,z=4。用重原子法及差值Fourier合成解出结构,最后的R值为0.074。利用Co~( )对CuKa反常散射测定了分子的绝对构型。Co~( )为六配位,d~2sp~3杂化近正八面体构型。

SYNTHESIS, CRYSTAL STRUCTURE AMD MOLECULAR ABSOLUTE CONFIGURATION FOR COMPLEXES OF R, S-TRI-N-(o-OXY-a-NAPHTHYLMETHYLENE) -a-PHENYLETHYLAMINE AND Co(III)

Synthesis, crystal structure and absolute configuration for title compounds are reported in this paper. The crystal structure is determined by three dimensinal X-ray data collected by Nicolet R3 four circle dif-fraetometer. The crystal is orthorhombic with space group D2P212121, a=12.587(3), b = 14.166(3), c = 25.652(14) , V = 4574.2 3 ,z = 4. The crystal structure was solved by Patterson method and difference Fourier syntheses. 542 positional and thermal parameters were refined by block least square refinement for nonhydrogen atoms. The final R factor is 0.074. The anomalous dispersion of Co (III) (f = 3.068) was used to determine the absolute configurations for title compounds. Co (III) takes d2sp3 hybrid and distorted octahedron configuration.