Affiliation:
1. N. S. Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences
Abstract
Molecular geometry features of 21 structurally characterized mononuclear octahedral dioxocomplexes of d2-rhenium(V) with mono-, tri- and tetradentate ligands [ReO2(Ltri)(Lmono)], [ReO2(Ltetra)] are discussed. In eleven cases, multiple-bonded Ooxo ligands are arranged in trans-positions to each other with OoxoReOoxo angles ranging within 172.9–180°. In ten structures, the ReO2 unit adopts cis-configuration with OoxoReOoxo angles vary within 106.7–124.8°. Re atoms possess either trans-octahedral coordination environment ReOoxo2X4 (X = N, P, As, O) or cis-structure ReOoxo2N2O2. Bonds Re=Ooxo in monomeric octahedral dioxocompounds d2-Re(V) (mean length 1.772 Å) are significantly longer those observed for monooxocomplexes d2-Re(V) (1.676–1.699 Å).
Publisher
The Russian Academy of Sciences
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