Can anyone please tell me about the shape & bonding of PCl5 in gas and solid phase??

Question

Can anyone please tell me about the shape & bonding of PCl5 in gas and solid phase??

Answer 1

Phosphorus pentachloride (PCl5)

the pentachloride is especially renown for the conversion of C=O groups to CCl2 groups.

trigonal bipyramidal structure in gas phase

The structure of “PCl5” in solution, however, depends on the solvent and on the concentration.

Answer 2

PCl5 gas: as predicted by VSEPR, a trigonal bipyramidal compound.  Not sure what you mean by "bonding", although words like "covalent" "hypervalent" "polar" "delocalized" or "electron-deficient" could all be argued as valid.

PCl5 solid: ionic complex consisting of tetrahedral [PCl4]+ cations and [PCl6]- anions.  All those above phrases would apply to the anion, fewer of them to the cation.