Structural, theoretical and multinuclear NMR study of mercury(II) complexes of phosphorus ylides: Mono and binuclear complexes
摘要:
Reaction of phosphorus ylide Ph(3)PCHC(O)c(6)H(4)Cl (Y(1)) with HgX(2) (X = Cl, Br and I) and ylide (p-tolyl)(3)PCHC(O)CH(3) (Y(2)) with HgI(2) in equimolar ratios using methanol as solvent leads to binuclear products. The bridge-splitting reaction of binuclear complex [(Y(1)) center dot HgCl(2)](2) by DMSO yields a mononuclear complex containing DMSO as ligand. O-coordination of DMSO is revealed by single crystal X-ray analysis in mononuclear complex of [(Y(1)) center dot HgCl(2) center dot DMSO]. C-coordination of ylides is confirmed by X-ray structure of binuclear complex [(Y(2)) center dot HgI(2)](2). Characterization of the obtained compounds was also performed by elemental analysis, IR, (1)H (31)P, and (13)C NMR. Theoretical studies on mercury(II) complexes of Y(1) show that formation of mononuclear complexes in DMSO soClution in which DMSO acts as a ligand, energetically is more favorable than that of binuclear complexes. (C) 2008 Elsevier Ltd. All rights reserved.
Structural, theoretical and multinuclear NMR study of mercury(II) complexes of phosphorus ylides: Mono and binuclear complexes
摘要:
Reaction of phosphorus ylide Ph(3)PCHC(O)c(6)H(4)Cl (Y(1)) with HgX(2) (X = Cl, Br and I) and ylide (p-tolyl)(3)PCHC(O)CH(3) (Y(2)) with HgI(2) in equimolar ratios using methanol as solvent leads to binuclear products. The bridge-splitting reaction of binuclear complex [(Y(1)) center dot HgCl(2)](2) by DMSO yields a mononuclear complex containing DMSO as ligand. O-coordination of DMSO is revealed by single crystal X-ray analysis in mononuclear complex of [(Y(1)) center dot HgCl(2) center dot DMSO]. C-coordination of ylides is confirmed by X-ray structure of binuclear complex [(Y(2)) center dot HgI(2)](2). Characterization of the obtained compounds was also performed by elemental analysis, IR, (1)H (31)P, and (13)C NMR. Theoretical studies on mercury(II) complexes of Y(1) show that formation of mononuclear complexes in DMSO soClution in which DMSO acts as a ligand, energetically is more favorable than that of binuclear complexes. (C) 2008 Elsevier Ltd. All rights reserved.