Other Donor Ligands

Ruthenium(VI) and Ruthenium (VI 11).—Following a preliminary report, full details have appeared of the preparation and properties of the new ruthenium(vi) terminal nitride complexes Cs2[Ru(N)X5] and R[Ru(N)X4] (X = Cl or Br R = Ph4As or Bu4N). The dipole transition moment has been calculated for the lowest energy ti 2e transition for RUO4, employing a 

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The preparation of substituted derivatives of Os3(CO)12 is hampered by the reluctance of this cluster complex to undergo replacement of carbonyl ligands by other donor ligands.1 There is, however, an alternative route to such species via the derivatives Os3(CO)n(CH3CN), 1, and Os3(CO)10(CH3CN)2, 2, the... 

These results indicate that a mechanism that involves formation of a 1,2-rj2-OFCOT complex as the initial step in the photolysis of 79 is unlikely, because there seems to be no reason why such a species should not bind competitively with f-BuNC, PMe3, or other donor ligands. 

The general process is shown in equation (3). The L unit in the [Cr(CO)3L3] can be CO (most common),15"20 MeCN,21 22 2-alkylpyridine,23 ammonia24-27 and other donor ligands. The rate (reaction temperature) is related to the nature of L the most reactive readily available source of Cr(CO)3 is [(q6-naphthalene)Cr(CO)3], which undergoes favorable arene exchange under mild conditions with many... 

C. Preparation of Six- and Seven-Coordinate Complexes of Molyb-denum(II) and Tungsten(II) by Halogen Oxidation of Zero-Valent Carbonyl Complexes Containing at Least One Other Donor Ligand 49... 

This is the most common method of preparing halocarbonyl complexes, and the section is divided into a number of different parts depending on the other donor ligands attached to the metal. 

Although a relatively complicated molecule with several potentially reactive sites, the ready availability of 325 allowed a study of its reactions and led to the characterization of many other complexes containing cluster-bonded C2 ligands. Although the details of reactions involving (i) substitution of CO by other donor ligands (PR3, CNR),... 

Ruthenium complexes of oxygen donor ligands incorporating other donor ligands are discussed in the corresponding section for the other ligand. Ternary and related compounds are outside the scope of this review. 

The synthesis of poly phosphine macrocycles requires the joining of a bidentate phosphine with other donor ligands via an alkyl or aryl chain. The synthesis of... 

Axial ligands of the quadruply bridged Pt(III) complexes are known to be easily replaced by other donor ligands. This property has been... 

C. 2—)f, and [ Ir (Cl)(Me3tpa) 2( a2-CH2CH2—indicate that this chemistry is not restricted to acetonitrile and expands to other donors ligands (e.g., other nitriles, H2O, and chloride) (162, 184). 

There is a wide variety of both Mo and W complexes of tertiary phosphines and other donor ligands that do not contain CO.57 These are made from the halides or complexes such as MoCl4(EtCN)2. 

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