Structural features of monomeric octahedral d 2-rhenium(V) monooxo complexes with oxygen atoms of bidentate-chelating acido (O,O)-ligands

The structural features of 39 mononuclear octahedral d 2-rhenium(V) monooxo complexes (I–ХХХIХ) with oxygen atoms of bidentate-chelating (O,O) acido ligands (Lig) are considered. In 21 complexes (I–ХХI), the O(lig) atoms are both in trans and cis positions to oxo ligands. In the other 18 complexes (XXI–XXXIX), both O(lig) atoms are in cis positions to the O(oxo) ligands.