名称:
Bi- and trinuclear cationic complexes involving bonds between mercury and five-coordinate platinum(II). Molecular structure of [{Pt(2,9-dimethyl-1,10-phenanthroline)-(Z-MeO2CCH = CHCO2Me)(H2O)}2 Hg](BF4)2
摘要:
Three cationic five-coordinate platinum(II) complexes bearing alkylmercury fragments as ''ligands'' have been isolated. The complexes of general formula [Pt(HgR)H2O)dmphen)(ZR' O2CCH=CHCO(2)R')] (BF4) (dmphen=2,9-dimethyl-1,10-phenanthroline; R, R(t)=Me; R=Me, R(t) =(t)Bu; R=(t)Bu, R(t)=Me) are stabilized by the factors operating in related neutral species. Two of the new complexes slowly demercuriatez in solution, affording the mononuclear complexes [Pt(Me)H2O)(dmphen(ZR' O2CCH=CHCO(2)R(t))](BF4) (R(t)=Me or (t)Bu). When R=(t)Bu, a slow redistribution reaction is observed, yielding the trinuclear cluster [{Pt(dmphen)(Z-MeO(2)CCH=CHCO(2)Me)H2O)}Hg-2](BF4)(2). The structure of this complex has been determined by X-ray analysis.