二氟乙烯具有偏氟、顺式和反式三种异构体.按照一般的静电概念,二氟乙烯中两个强负电性的氟原子相距愈近,其稳定性愈差.由此推测的稳定性顺序为:反式二氟乙烯>顺式二氟乙烯>偏氟乙烯.但由实验得出的稳定性顺序恰好与此相反.这种经典理论观点与实验的不一致吸引了许多理论与实验化学家的兴趣.有许多理论研究工作者试图探讨二氟乙烯稳定性的本质,但都未给出令人十分满意的解释.中国科学院上海有机化学研究所氟烃小组基于 Fluorinated vinylidene difluoride, cis and trans three isomers. According to the general concept of static electricity, two vinylidene fluoride strongly negatively charged fluorine atoms closer together, the poorer the stability of the presumed The order of stability is trans-vinylidene fluoride> cis-vinylidene fluoride> vinylidene fluoride, but the experimental order of stability is just the opposite. This inconsistencies between the classical theory and experiments have attracted many theories and experiments Chemists’ Interests There are many theoretical researchers trying to explore the nature of vinylidene fluoride stability, but none of them gives a very satisfactory explanation. The Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences,