Isolation and Structural Characterisation of Monoprotonated 1,2-Bis(diphenylphosphino)benzene in its Tetrabromogallate(III) Salt

Abstract

Hydrolysis of gallium tribromide complexes of 1,2-bis(diphenylphosphino)benzene in toluene solvent affords crystals of the mono-phosphonium salt [ 1,2 -Ph2P-(C6H4)-PPh2H]+ [GaBr4]- . The structure analysis by single crystal X-ray diffraction allows an internal comparison of Ph2P phosphino and Pf2PH+ phosphonium functions.