With Other O-donor Ligands

The dinuclear molecules form infinite chains with Au Au contacts in the range of 346 (R = CF3) -364 pm (R = Me). These complexes are viable precursors for gold CVD due to their sufficient volatility and thermal stability [133]. 

Some of the [Au(N,0)Cl2] derivatives, namely 58a, 59a and 59b, which have been tested for cytotoxic activity against various human tumor cell lines, have shown significant effects [144]. Compound 57 is a potential alternative to dimethylgold (III) P diketonates and can be used as a starting material for gold coatings by the CVD method [140]. Recent studies have shown that the long-term stability of these 

Reaction of HAuCU with the dipeptide glycylalanine (H-Gly-Ala-OH) and the tripeptide glycylalanylalanine (H-Gly-Ala-Ala-OH) gives the corresponding complexes [Au(Gly-Ala-0)Cl] (66) and [Au(Gly-Ala-Ala-O)] (67) where the peptides are coordinated to gold through — NH2, amide(s) and G02 groups in a near square 

1 Hashmi,A.S.KandHutohiiig, G.J. (2006) Gold catalysis. Angewandte Chemie International Edition, 45, 7896  

and Thompson, D.T. (2006) Catalytic Science Series, Vol. 6, Catalysis by Gold (ed. G.J. Hutchings), Imperial College Press, London, UK Hashmi, A.S.K. (2007) Gold-catalyzed organic reactions. Chemical Reviews, 

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One consequence of a bent MOP linkage is that the space required to accommodate the ligand around a metal centre is targe, and the coordination numbers displayed by metals are often less than shown with other O-donors. 

Other adducts with neutral O-donor ligands include TiCl4,OP(OEt)3 TiCl4,L2 (L = difurfurylidene cyclopentanone, difurfurylidene cyclohexanone, di-benzylidene cyclopentanone, or dibenzylidene cyclohexanone) titanium compounds with some 0-containing organic compounds. 

Complexes with other Carbon-donor Ligands. The naphthyl hydrido Complexes of the type [MH(CioH,)(MejP CHg CHa-PMe2)2] (46), where M = Ru or Os , are isomorphous and isostructural. They are octahedral and contain a naphthyl ligand o-bonded to the metal atom and in a position cis to the hydrido hydrogen. The respective Ru-C, Os-C, and Ru-H distances are 2.16(1), 2.13(2), and 1.7 A in the osmium compound the hydrido hydrogen atom has not been located. The M-P distances range... 

Complexes of cobalt(III) with O-donor ligands are generally less stable than those with Af-donors although the dark-green [Co(acac)3] and M iCo-( 204)3] complexes, formed from the chelating ligands acetylacetonate and oxalate, are stable. Other carboxylato complexes such as those of... 

Other osmyl complexes with O donor ligands include (PPh4)2[0s(0)2(0SiMe3)4], prepared from (PPh4)2[0s(0)2(Cl)4] and NaOSiMe3 and tra i s(0)2(trop)2] (trop = tropolonato C7H502 ), prepared from K2[0s(0)2(0H)4] and the ligand. ... 

Nephelauxetic parameter (ft) and SINHA s covalency parameter of (6) for the HMPA-complexes of the lanthanides, and a comparison with other complexes containing P -> O donor ligands. TBP = tributylphosphate, OMPA = octamethylpyrophosphoramide, HMPA = hexamethylpyhosphoramide. To emphasize the weak nephelauxetic effect produced by the P-0 donor ligands, some of the fi and S values are expressed with three or four places after the decimal without rounding off. Ref. [290]. 

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