Organomercury compounds. Vii. complexes of arylmercuric halides with bidentate ligands

A. J. Canty, G. B. Deacon

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The complexes, C6F5HgXL2 [X = Br or C1; L2 = 2, 2′-bipyridyl (bipy), 1, 10-phenanthroline (phen), 3, 4, 7, 8-tetramethyl-1, l0-phenanthroline (tmp), or 2, 9-dimethyl-1, 10-phenanthroline (dmp)], C6Cl5HgClL2 (L, = phen, tmp, or dmp), and PhHgClL2 (L2 = phen or tmp), have been prepared, but attempts to prepare PhHgCl bipy or complexes of phenylmercuric bromide were unsuccessful. Evidence that the complexes contain four coordinate mercury has been obtained from infrared spectroscopy. All complexes, except C6Cl5HgCl phen, C6Cl5HgCl dmp, and PhHgCl tmp, undergo complete or partial disproportionation reactions, 2RHgXL2 → L2HgX2 +R2HgL2 (or R2Hg + L2), in boiling benzene. Although disproportionation or low solubility precludes solution studies on the majority of the derivatives, it has been shown that C6F5HgX dmp complexes are monomeric in acetone and that PhHgCl phen undergoes dissociation, PhHgCl phen → PhHgCl + phen, in this solvent.

Original languageEnglish
Pages (from-to)1757-1767
Number of pages11
JournalAustralian Journal of Chemistry
Issue number7
Publication statusPublished - 1 Jan 1968

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