Ligands C-donor

Reactions of alkynes with trinuclear group 6-group 9 clusters incorporating bridging alkylidyne ligands proceeded by coupling the C-donor ligands. 

Figure 2.22 Stable gold(lll) alkoxides stabilized by C-donor ligands.

Neutral Pentafluorophenylgold(l) Derivatives with C-Donor Ligands... 

The reaction of [AuCl(THT)] with 2-(4,5,-dihydro-4,4,-dimethyl-2,-oxazolinyl)-thien- -yllthium (n = 3,5) affords dimeric (586) or trimeric (587) gold(I) derivatives with mixed /V,C-donor ligands.2263 Other complexes with mixed N,C donor ligands which have been prepared in a similar manner are [Au2 Fc(CFl2NMe2 2], 7 [Au2 C6Fl4(CFl2NMe2) 2],3132... 

Figure 3 Structures of some Ir111 complex phosphors based on cyclometallating N,C-donor ligands...

Bidentate N C donor ligands display head to tail arrangement in homoleptic dinuclear complexes [Au2(N C)2] that include [ 2 ( 2 ) 2]2+ [CH3im... 

The reported complexes of chromium(III) with group IV ligands are limited mainly to those containing CN and to a lesser extent those containing other C donor ligands. 

The presence of heteroatom donors is not essential to cation-71 complexation, and indeed a number of purely hydrocarbon n—C—donor ligands have been prepared. Ligand 3.137 is synthesised in 90 % yield by cyclisation of the precursor diketone under high dilution conditions in order to minimise the formation of polymeric by-products (Scheme 3.27). 

Different types of migratory insertions are exemplified by reactions 10, 11, and 12 in the Table II. An evaluation scheme is given in Matrix 6. In the present study we consider this reaction according to its general mechanism, shown in Eq. (6), where L is a neutral ligand (olefin, carbon monoxide, carbene, etc.) which becomes X (anionic c-donor ligand). X is also an anionic a-donor ligand. 

Group IV Donors. C-donor ligands. Treatment of [Ru(CN)6]4- with dimethylsulphate for 6h at 95 °C has produced the white isocyanide complex [Ru(CNMe)6]2 +. 67 Electrochemical studies showed that the corresponding Ru,u species can only exist under strongly oxidizing conditions. Furthermore, addition of simple amines to [Ru(CNMe)6]2+ produces either (11) or (12) (containing either uni- or bi-dentate... 

Group IV. C-Donor ligands. Treatment of salts of Pt (Pd, Rh, Ir) with 1-benzoyl -iminopyridinium (L) gives the complexes [PtCl(L - H)L] (see p. 398).103 Dicyano-methanide complexes of Pt (Pd, Rh, Ir) have been prepared, e.g. equation (38) (see p. 398) 101 Tricyanomethanide complexes of Pt have been synthesized by oxidative... 

Group IV. C-donor ligands. The highly explosive yellow-orange disilver diazomethane has been obtained in high yield (equation 48).216 The i.r. spectrum suggests... 

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