what is the electron domain geometry about phosphorus in the hexafluorophosphate anion (pf 6 ​ − )
Hexafluorophosphate Hexafluorophosphate is an anion with chemical formula of PF−6. It is an octahedral species. It imparts no color to its salts. PF−6 is isoelectronic with sulfur hexafluoride, SF6, and the hexafluorosilicate dianion, SiF2−6, and fluoroantimonate SbF−6. Being poorly nucleophilic, hexafluorophosphate is classified as a non-coordinating anion.[2][3]