Structural features of monomeric octahedral d (2)-rhenium(V) monooxo complexes with the oxygen atoms of monodentate acido ligands OERn- (n=1, 2; E = Si, B, S; R = Me-3, F-3, D2CF3)

摘要

Some structural features of mononuclear octahedral rhenium(V) oxo complexes (I-VI) with the oxygen atoms of monodentate acido ligands OD center dot Rn- (n = 1, 2; D center dot = Si, B, S; R = Me-3, F-3, D2CF3) have been considered. The Re-O(OD center dot R) (trans) bonds in complexes I-V (D center dot = Si, B; R = Me-3, F-3) are elongated due to the structural manifestation of the trans-effect of multiply bonded oxo ligands. The Re-O{S(O2CF3)} (cis) bond in cis-position to the O(oxo) ligand in complex VI is shortened in comparison with RD mu-O(ST).