关键词: 晶体结构测定, 丙酸 P, Ｘ射线衍射分析, 苯甲酸 P, 三苯基, 有机氟化合物, 重原子法, 胂, 内翁盐

Benzoylpentafluoropropionylmethylene triphenylarsorane contains two strongly electron-withdrawing groups in methylene moiety. Single crystals obtained from CH3OH-H2O solution are triclinic, the space group is P1. The X-ray diffraction intensity data were collected by a four-circule diffractometer. The structure has been solved by the heavy-atom method and refined by the block-diagonal least-squares method.

Key words: CRYSTAL STRUCTURE DETERMINATION, METHYLACETIC ACID P, X-RAY DIFFRACTION ANALYSIS, BENZENECARBOXYLIC ACID P, TRIPHENYL GROUP, ORGANO FLUORINE COMPOUNDS, HEARY ATOM TECHNIQUE (METHOD), ARSINE, YLIDE