Mercury complexes clusters

Mercury will bond directly to certain metal atoms including Co, Ru, Rh, Fe, Pt, and Mn. Such Hg-metal bonds are usually part of linear M-Hg-M or M-Hg-X linkages, and some clusters containing mercury-metal bonds are also known. These compounds are prepared by the reaction of mercury(II) halides with carbonyhnetallates. A rare example of trigonal prismatic (see Trigonal Prism) coordination in a mercury complex is exhibited by [Hg Pt3(2,6-Me2C6H3NC)6 2], which contains Pt-Hg bonds. These types of compound have been reviewed. ... 

CF3H, Methane, trifluoro-cadmium complex, 24 55 mercury complex, 24 52 CF3NOS, Imidosulfurous difluoride, (fluorocarbonyl)-, 24 10 CH2, Methylene ruthenium complex, 25 182 CH2CI4P2, Phosphine, methylenebis-(dichloro)-, 25 121 CH3, Methyl cobalt complexes, 23 170 mercury complexes, 24 143-145 platinum complex, 25 104, lOS CNO, Cyanato silicon complex, 24 99 CN2OS2, l,3k, 2,4-Dithiadiazol-5-one, 25 53 CO, Carbon monoxide chromium complexes, 21 1, 2 23 87 cobalt complex, 25 177 cobalt, iron, osmium, and ruthenium complexes, 21 58-65 cobalt-osmium complexes 25 195-197 cobalt-ruthenium cluster complexes, 25 164... 

Such moieties are closely akin to the Hg2 -mesitylene structure in [Hg(C9Hi2)AlCl4]2 and presumably also to the (Hg2 )(C6H6)2 complexes in the structurally uncharacterized [Hg(C6H6)AlCl4]2. Thus, it seems that weak Hg-C bonds may help to stabilize the mercury chain clusters, an idea that is lent further support by the spectroscopic data of [Hg2(CO)2](Sb2Fn)2... 

Another area of major interest in the field is that of mixed metal cluster systems. Hieber very early in the study of metal carbonyl chemistry was able to prepare mercury complexes of the type Fe(CO)4(HgCl)2. The related gold ° compounds were prepared in the 1960s by reaction of phosphine gold halides with carbonyl anions. 

A silver- mercury centered cluster compound was prepared by Peringer etal. [96] (Scheme 12.41). The multi-component reaction led to quantitative formation of the complex 141, which was analyzed by X-ray single crystal diffraction. The Hg-Ag distances in this compound are 2.853(2) and 2.805(2) A, and the Hg-Hg distance is 2.6598(14) A. 

One of the important electrochemical interfaces is that between water and liquid mercury. The potential energy functions for modeling liquid metals are, in general, more complex than those suitable for modeling sohds or simple molecular liquids, because the electronic structure of the metal plays an important role in the determination of its structure." However, based on the X-ray structure of liquid mercury, which shows a similarity with the solid a-mercury structure, Heinzinger and co-workers presented a water/Hg potential that is similar in form to the water/Pt potential described earlier. This potential was based on quantum mechanical calculations of the adsorption of a water molecule on a cluster of mercury atoms. ... 

The mercurial Hg[Fe(CO)3NO]2 reacts with elemental sulfur S8 to yield the cubane-type cluster [Fe4S4(N0)4] (36, 37) it is not therefore entirely unexpected that metal complexes rich in sulfur can likewise react with this mercurial to produce novel heterometallic nitrosyls. 

A binding energy of —0.13eV has been found by coupled cluster and MP2 calculations for the Mulliken outer 7t-complex [(2,3,4,5-7])-furan-reO]mercury, Hg(C4H40) <2005CPL(409)322>. 

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