35099-05-9Relevant academic research and scientific papers
Multidentate Lewis acids. Crystal structure of the 1:1 complex of dichloro-1,2-phenylenedimercury with dimethylformamide
Beauchamp, André L.,Olivier, Marc J.,Wuest, James D.,Zacharie, Boulos
, p. 153 - 156 (1987)
The 1:1 complex was obtained by slow recrystallization of dichloro-1,2-phenylenedimercury from dimethylformamide. The crystals are monoclinic, space group P21/c, with a = 9.275 (6) ?, b = 16.086 (6) ?, c = 8.634 (9) ?, β = 91.02 (6)°, and Z = 4. The structure was refined on 1583 nonzero Mo Kα? reflections collected at 175 K to R = 0.040. The unit cell contains discrete 1:1 molecules. The oxygen-bonded dimethylformamide bridges the two Hg atoms of the dichloro-1,2-phenylenedimercury molecule. The bound dimethylformamide is planar and lies perpendicular to the aromatic ring, close to the approximate mirror plane bisecting the ring. The oxygen donor lies above the plane containing the two -Hg-Cl substituents, and the Hg?O distances (2.777 (13) and 2.681 (13) ?) correspond to moderately strong secondary bonds with the metal. The structure is stabilized by a number of intermolecular Hg?Cl contacts.
SOME REACTIONS OF PHENYLENE- AND POLYPHENYLENE-MERCURIALS
Massey, A. G.,Al-Jabar, N. A. A.,Humphries, R. E.,Deacon, G. B.
, p. 25 - 40 (2007/10/02)
Cleavage reactions of six phenylene- and polyphenylene-mercury heterocycles with the mercuric halides and mercuric acetate in suitable refluxing solvents readily produce 1,2-C6X4(HgX)2; 2,2'-C6H4C6H4(HgX)2 and 2,2''-C6H4C6H4C6H4(HgX)2 (X = Cl, Br, I or CH3CO2).Addition of silver acetate to 2,2'-C6H4C6H4(HgBr)2 gives 2,2'-C6H4C6H4(HgO2CCH3)2 which reacts with concentrated hydrochloric acid to form 2,2'-C6H4C6H4(HgCl)2.Treatment with sodium iodide, or in some cases simply the application of heat under vacuum, causes symmetrization of these cleavage products back to the original heterocycles in high yield.The terphenylenemercury dimer, (C6H4C6H4C6H4Hg)2, forms solvates with a wide variety of donor and non-donor solvents.Pyrolysis of mercuric 2,3,4,5-tetrafluorobenzoate at 190 deg.C. yields 2-mercurio-3,4,5,6-tetrafluorobenzoate and 2,3,4,5-tetrafluorobenzoic acid; at 300 deg.C. the former gives tetrafluorophenylenemercury, (C6F4Hg)3.
