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Abstract : |
The reaction of mercury(II) halides with imidazolidine-2-thione, 1,3-diazinane-2-thione and 1,3-diazepine-2-thione yielded complexes of stoichiometry HgL(2)Cl(2) and HgL(2)Br(2). The C(2) resonance of all thione ligands shifted more for HgBr2 complexes compared with HgCl2. The Hg-199 NMR chemical shift range is within -805 to -1008 ppm for HgL(2)Cl(2) complexes and -1124 to -1394 ppm for all HgL(2)Br(2) complexes. Also C-13 and Hg-199 NMR chemical shifts are compared for five-, six- and seven-membered ligands after complexing with mercuric halides. Copyright (C) 1996 Elsevier Science Ltd., |