Arsine complexes of ruthenium

A few cyano phosphine and arsine complexes of ruthenium(II) have been reported. These include tra s-[RuH(CN)(dmpe)2] (dmpe = Me2P(CH2)2PMe2) obtained from the corresponding chloro complex and aqueous KCN43 or more recently by treatment of [RuH(2-np)(dmpe)2] (2-np = 2-naphthyl) with HCN. The latter gives a 85% cis, 15% trans isomer mixture ( H NMR evidence).44... 

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