
%0 Journal Article
%A Canty, AJ 
%A Deacon, GB 
%T Organomercury compounds. VII. Complexes of arylmercuric halides with bidentate ligands
%J Australian Journal of Chemistry
%D 1968/07/01
%V 21
%N 7
%P 1757-1767
%K 
%R https://doi.org/10.1071/CH9681757
%U https://www.publish.csiro.au/paper/CH9681757 
%X The complexes, C6F5HgXL2 [X = Br or C1; L2 = 2,2'-bipyridyl (bipy),   1,l0-phenanthroline (phen), 3,4,7,8-tetramethyl-1,l0-phenanthroline (tmp), or 2,9-dimethyl-1,l0-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 &#8594;   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.  Four-coordinate complexes of mercuric halides with neutral ligands, L,HgX,  (L = a neutral unidentate or L, = a neutral bidentate ligand; X = C1, Br, or I), are   well kno~n,l-~ but analogous complexes of organomercuric halides, viz. RHgXL,,  were unknown prior to this investigation. Reactions of organomercuric halides with   ligands generally result in disproportionation, the corresponding diorganomercurial   and mercuric halide complex being f~rmed.~-~  In some cases intermediate complexes RHgL+X- have been i~olated~,~ or detected in   soluti~n,~-~~ and a 1 : 1 complex of unknown structure between pyridine and cis-2-   * Part VI, J. organomet. Chem., in press. Preliminary communications for Part VII: Canty,   A. J., Deacon, G. B., and Felder, P. W., Inorg. nzlcl. Chem. Lett., 1967,3,263; Deacon, G. B., and   Canty, A. J., Inorg. %ucl. Chem. Lett., 1968, 4, 128.   t Chemistry Department, Monash University, Clayton, Vie. 3168.   Evans, R. C., Mann, F. G., Peiser, H. S., and Purdie, D., J. chem. Soc., 1940, 1209.   Cass, R. C., Coates, G. E., and Hayter, R. G., J. chem. Soc., 1955, 4007.   Coates, G. E., and Ridley, D., J. chem. Soc., 1964, 166.   Coates, G. E. &quot;Organometallic Compounds.&quot; 2nd. Edn, pp. 78-82. (Methuen: London   1960.)   Seyferth, D., and Towe, R. H., Inorg. Chem., 1962, 1, 185.  Coates, G. E., and Lauder, A., J. chem. Soc., 1965, 1857.   Brodersen, K., Chem. Ber., 1957, 90, 2703.   Schwarzenbach, G., and Schellenberg, &amp;I., Helv. chim. Acta, 1965, 48, 28.   Goggin, P. L., and Woodward, L. A., Trans. Faraday Soc., 1962, 58, 1495.   Dessy, R. E., Budde, W. L., and Woodruff, C., J. Am. chem. Soc., 1962, 84, 1172.   Aust. J. Chem., 1968, 21, 1757-67 
