Phosphines gold sulfide complexes

Gold(I) complexes with P,S (or Se) donor ligands are in many cases derived of phosphine sulfides or selenides as [Au2(PPh2CH2PPh2Se)2](C104)2,3140 and [Au(PPh2CH2PPh2Se)2]+ (595),1403,3141 [Au2(PPh3)2(p-SPPh2Py)](BF4)2,1427 or phosphine thioethers such as... 

The simple sulfide AU2S is a very insoluble, luminescent compound whose coordination chemistry is unknown.184,185 Better characterized complexes can be prepared with tertiary phosphine-gold(I) units (equation 17 R = Me, Et, Ph).186-188 In [S(AuPPh3)2], each gold(I) centre has linear stereochemistry with angle AuSAu = 88.7(1)°.188... 

Phosphine sulfides or selenides are well-known ligands in gold(I) chemistry. With monophosphine complexes of the type [AuX(SPR3)] (X = C1, Br, CN PR3 = PPh3, PCy3, PPh2Py,... 

Other complexes with phosphine sulfides are the three coordinate [Au (S-PPh2)2C(PPh2S) (PPh2Bun)],302 the /i4-phospha-l-thiethane compound [Fe3(CO)9(/i4-PS)(AuPPh3)2] (558),3 27 and the gold(I) dendrimers containing P=NP=NP=S or P=NP=S groups as (559).3028... 

Tributylphosphine sulfide has been used as a co-catalyst with dicobalt octacarbonyl for the Pawson-Khand reaction. Thermolysis of a mixture of cadmium chloride and trioctylphosphine sulfide at 250 °C has been used as a route to the formation of nanocrystalline cadmium sulfide." A complex of triphenylphosphine sulfide with a silver-tungsten-iodine acceptor has been characterised by X-ray studies. Ferrocenylphosphine chalcogenides have attracted considerable interest as ligands. Complexes of the monophosphino-phosphine sulfide (269) with rhodium have been characterised." The disulfide (270) forms complexes with both gold(i) and gold(iii) acceptors," and a silver(i) complex of the diselenide (271) has been prepared. ... 

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