A pentachloride is a compound or ion that contains five chlorine atoms or ions. Common pentachlorides include:
Antimony pentachloride, SbCl5 Arsenic pentachloride, AsCl5 Molybdenum pentachloride, MoCl5 Niobium pentachloride, NbCl5 Phosphorus pentachloride, PCl5 Protactinium pentachloride, PaCl5 Osmium pentachloride, OsCl5 Rhenium pentachloride, Re2Cl10 Tantalum pentachloride, TaCl5 Tungsten pentachloride, WCl5 Uranium pentachloride, UCl5 Vanadium pentachloride, VCl5