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The organophousphorus complexes of [(PPh 3 ) 2 Hg 2 Cl 4 ] ( 4 ), [(PPh 3 ) 2 Hg 2 Br 4 ] ( 5 ) and [(PPh 3 ) 2 Hg 2 I 4 ] ( 6 ) were resulted from nucleophilic substitution of triphenylphosphine ligand with tri- p -tolylphophine complexes ( 1 - 3) . The crystal structures of two organophousphorus complexes of mercury(II) ions 4 and 6 have been determined by means of the X-ray diffraction. Both complexes were crystallized in the monoclinic space groups P2(1)/c , and have very similar bond lengths, angles pattern and same substituted triphenylphosphine ligand. Single crystal X-ray analysis of title structures reveal the presence of a centrosymmeteric dimeric structure containing the ligand and mercury halides.

journal of the chilean chemical society

SYNTHESIS OF ORGANOPHOSPHORUS COMPLEXES AND STRUCTURAL CHARATERIZATION OF TWO DIMERIC TRIPHENYLPHOSPHINNE COMPLEXES OF MERCURY(II) IONS FROM DIMERIC COMPLEXES OF [4-METHYLBENZOYLMETHYLENETRI-P-TOLYLPHOSPHINE MERCURY(II) HALIDES