Ruthenium diazenido complexes

Leydon and Hawthorne (1975) demonstrated that the replacements described by Knoth also apply to the monodiazoborane 3.14. Komura et al. (1987) depicted a synthesis of the 1-thiol BioH9SH (3.15) by reaction of the monodiazoborane 3.14 with A, A -dimethylthioformamide, followed by alkaline hydrolysis (3-18). Knoth (1972) was able to form a ruthenium complex with a diazenido ligand, using l-(di-methylsulfonio)-10-diazonio(10)-borane. The reaction is described in Scheme 10-13 (Sect. 10.2). 

We are aware of only one diazenido metal complex that corresponds almost to the linear type 10.8, namely the dihydro(triphenylphosphino)[l-(dimethylsulfonio)-10-(10)-boranediazenido]ruthenium complex [(RuH2[N2BioH8S(CH3 )i ] [P(C6H5 )3] ] (10.32 see Sect. 10.2). Schramm and Ibers (1977) determined its structure by an X-ray analysis. They found that the Ru—Np —angle is 175.9° and the Np —Na —B angle 172.7°. 

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