Nitrosyl and thionitrosyl complexes

The full account of the preparation and subsequent reactions of the cationic nitrosyl complexes [M(NO)(CO)3(diphos)]PF6 (M = Mo or W) has been published. These complexes react with NaX (X = halide, S2CNMe2, or S2CNEt2) salts to form the corresponding [M(NO)(CO)2(diphos)X] derivative. With phosphine ligands (L) in CHC13, [M(NO)(CO)L(diphos)Cl] is obtained, but in acetone, [M(NO)(CO)2L2-(diphos)](PF6),(acetone) and [M(NO)(CO)(diphos)2](PF6) are formed. Decarbonyla-tion occurs when [Mo(NO)(CO)3(diphos)](PF6) is heated under reflux in CHC13 to produce [Mo(NO)(diphos)Cl2] and other polynuclear nitrosyl species.320 

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Thermolysis of (LH)2[RuCl5(NO)] (L = benzimidazole, imidazole, 5-nitrobenzimidazole, benzo-triazole, py) leads to the initial formation of [RuC NOJL]- with subsequent reaction to afford [RuCl3(NO)L2].M6 When solutions of RuCl with NaNCS in pyridine are refluxed for three days, a product formulated as [Ru(NCS)2py4] can be isolated.667 Nitrosyl and thionitrosyl complexes containing heterocycles with arsine or phosphine ligands have been reported.668... 

The EPR spectra of low-spin 4d5 Tc(II) nitrosyl and thionitrosyl complexes have been examined in detail and the results, reviewed (39-41). 

Dinitrogen, Phosphine, Phosphite, and Related Complexes Complexes with Nitrogen Ligands Nitrosyl and Thionitrosyl Complexes Technetium(II)... 

Complexes with Dioximes, Schiff Bases, and Other Nitrogen Ligands Complexes with Monodentate Phosphines and Related Ligands Complexes with Bidentate Phosphine, Arsine, and Related Ligands Complexes with Sulfur Ligands Nitrosyl and Thionitrosyl Complexes VII. Technetium(IV)... 

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