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苯甲酰基全氟丙烯基亚甲基三苯基胂(Ylid-VI)晶体无色透明。空间群为C_(2H)~5-P2_(1/a)。属单斜晶系。晶胞参数a=10.365(8),b=29.106(4),c=8.630(8),β=107.20(28)°,晶胞内含有四个分子。用PW-1100四圆衍射仪收集衍射强度数据,独立衍射点为4966个。应用重原子法测定了Ylid-VI的晶体结构,以准对角矩阵最小二乘法修正结构参数,R=0.067。 Ylid-VI分子结构表明:在砷原子与亚甲基上的碳原子之间存在着电荷转移现象。
Benzoyl perfluoropropenylidene triphenyl arsine (Ylid-VI) crystal colorless and transparent. The space group is C_ (2H) ~ 5-P2_ (1 / a). Is monoclinic. The unit cell parameters a = 10.365 (8), b = 29.106 (4), c = 8.630 (8), β = 107.20 (28) °. The unit cell contains four molecules. Diffraction intensity data were collected using a PW-1100 four-circle diffractometer with 4966 independent diffraction points. The crystal structure of Ylid-VI was determined by heavy atom method. The structure parameters were corrected by the least square method of quasi-diagonal matrix, R = 0.067. Ylid-VI molecular structure shows that there is a charge transfer phenomenon between the arsenic atom and the carbon atom on the methylene.