Solution thermochemistry of phosphorus(V) bromide, and tetrachlorophosphonium tetrachloroborate and tetrabromoborate
Abstract
Using a solution calorimetric method the standard enthalpies of formation at 298·15 K of PBr5(c), BPCl8(c), and BPBr8(c) have been determined as –60·5 ± 0·6, –223·95± 0·6, and –135·5 ± 0·7 kcal mol–1, respectively, the first two results differing significantly from literature sources.