NO
PCl5固体是离子晶体，熔融态也是离子构成的,熔融态导电
PCl4+与PCl6-
固态时五氯化磷的结构单元可以写作PCl4+PCl6−，氯化击饭雨江铯型晶体结构，两个离子分别为四面体和八面体结构，阳离子中的磷原子为sp3杂化，阴离子步引七政操否中的磷为sp3d2杂化。气态世诗表将结放花段觉固那和液态的五氯化磷为单分子结构，分子呈三角双锥形，与VSEPR理论所预测的一致。
The structures for t价下识杆非些利蒸he phosphorus chlorides are invariably consistent with VSEPR theo轻布象ry. The structure of PCl5 depends on its environment. Gaseous and molt航买制存危做算政销en PCl5 is a neutra妈药部l molecule with trigonal bipyra育友midal (D3h孔急正父电府课望) symmetry. The hy级船世却pervalent nature of this species (as well as for PC鲜第圆落破政外它时斯跑l−6, see below) can be explained with three-ce树同马架运江nter four-electron bonding model. This trigonal bipyramidal structure persists in non-polar solvents, such as CS2 an四扬服心础为谈左d CCl4.[1] In th久e solid state PCl5 is ionic, fo专点地不rmulated PCl+4PCl−6.[2]
In solutions of polar solvents, PCl5 undergoes "autoionization".[3] Dilute solutions dissociate accor样心供妒降ding to the following equilibrium:
PCl5 [PCl+4]C氧烟买卷印素l−
At higher concentrations, a second equilibrium becomes more important:
2 PCl5 [PCl+4][PCl6−]
The cation PCl+4 and the anion PCl−6 are tetrahedral and octahedral, respectively. At one time, PCl5 in solution was thought to form a dimeric structure, P2Cl10, but this suggestion is not supported by Raman spectroscopic measurements.
