The exchange reaction between rhenium hexafluoride and boron trichloride and enthalpies of formation of rhenium pentachloride and rhenium hexafluoride

Abstract

Enthalpies of formation of ReCl₅, –86·1 ± 0·8 kcal mol^–1, and ReF₆, –322·6 ± 2·3 kcal mol^–1, have been estimated from hydrolysis measurements. The reaction of rhenium hexafluoride with boron trichloride, under various conditions, has been shown to yield rhenium pentachloride as the only major solid phase; the previously reported hexachloride has not been detected.