Phosphines sulfido

WO4P2C32H30, Tungsten(0), (acetone)tri-carbony 1[ 1,2 ethanediylbis(diphenyl-phosphine)]-,yhc-, 29 143 WS2C, H 2, Tungsten(TV), bis(V-cyclo-pentadienyl)bis(hydrogen sulfido)-, 27 67... 

In principle, the reaction of oxo-Mo(iv) complexes with SAT reagents could produce oxosulfido-Mo(vi) species, especially in the presence of innocent, sterically protective co-ligands. Indeed, this strategy has proved indispensable in the development of scorpionate-based MoHMs (Section 7.4.1.1.3). Related conversions, e.g. of Mo(ii) complexes to sulfido-Mo(iv) species, followed by OAT, may also be useful in the synthesis of oxosulfido-Mo(vi) complexes. Potential sulfur atom donors include elemental sulfur, thiiranes, thiols and phosphine sulfides. However, sulfur s propensity for catenation limits its usefulness in single-atom SAT reactions. To date, thiols and phosphine sulfides have found limited application in such reactions. ... 

The mechanism of CO substitution with phosphines in the 19-e complex Cp Mn(CO)2NO is dissociative, followed by spontaneous oxidation of the product. Trinuclear clusters containing CpRe(CO)-fiagments in combination with iron carbonyl sulfido dimers have been reported. The synthesis of CpMn(CO)2(n -cyclooctyne) and the ligand rearrangement to an allene complex within the metal coordination sphere has been investigated by NMR spectroscopy. Tc labelled esters of cytectrene carboxylic acid have been prepared by exchange with ferrocenylcarboxylic acids in the presence of carbonyl donors. ... 

Models for monodithiolene molybdenum species related to xanthine oxidase and aerobic CODH have been described, e.g. [Mo(S2CgH4)02(SR)] [143]. The synthesis of related species with terminal sulfido ligands would enable assembly of the indicated (dithiolene)Mo02S-CuSR ensembles. The interaction of M0S4 and Cu has received considerable study, motivated by interest in the ability of dietary Mo to inhibit copper uptake in ruminants [144]. Bi-, tri-, tetra-, or higher nuclearity Cu-Mo clusters result from the reaction of MoS and Cu" in the presence of tertiary phosphines, amines, or cyanide [144]. 

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