Disulfido metal complexes

Scheme 18 Synthesis of group 5 metal disulfido complexes from the metal thiolato complexes...

Scheme 24 Synthesis of group 6 metal disulfido complexes...

Scheme 67 Reaction of a diruthenium disulfido complex with metals...

Other coordination types for disulfido complexes can be envisioned in addition to those of Table 2. In principle, six electron pairs are available to coordinate to metals... 

Disiloxane, tetramesityl-, 3,206 Disproportionation iridium catalysts, 4,1159 Dissolution nuclear fuels, 6, 927 Distannene, 3,217 Distannoxane, 1,3-dichloro-, 3,207 Distibine, tetraphenyl-, 2,1008 Distibines, 2,1008 Disulfido ligands metal complexes, 2,531-540, 553 bonding, 2, 539 electron transfer, 2, 537 intramolecular redox reactions, 2,537 reactions, 2, 537... 

M—S distances are similar to those for metal complexes of other simple sulfur-containing ligands. Ligands of types la and III exhibit slightly asymmetric M—S distances. This inequality is usually 0.03-0.04 A however, it can be as large as 0.06-0.08 A in complexes which contain structual units such as (42) in which the sulfur atoms from two different disulfido ligands are approximately trans to one another. 

The number of well-defined metal complexes containing terminal sulfido or disulfido ligands is rather limited [1, 2], their syntheses are seldom simple and the compounds may be highly unstable in solution. Although these features may have precluded reactivity studies, and thus further attempts to model HDS-related reactions, it is very likely that other examples will become available in the near future particularly welcome would be some advances in the reactions of hydrogen with e.g. Mo or Co complexes containing such sulfur ligands, as well as studies of the reactions of M(H)(SH) and M(SH)2 complexes with thiophenes and other related molecules. 

Mixed-metal sulfido cluster complexes have attracted attention because of their application in catalysis." Although disulfido ligands exhibit great versatility as bridging ligands, dinuclear metal disulfides are still relatively rare. We have synthesized the new dimanganese disulfide complex, Mn2(CO)7(p-S2). ... 

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