cis-Dichlorido[2,3-dimethyl-3-(4,4,5,5-tetramethyl-1,3,2l5-dioxaphospholan-2-yloxy)butan-2-olato-κ²O,P]oxido(triphenylphosphane-κP)rhenium(V)

Acta Cryst. (2012). E68, m605-m606 (http://doi.org/hxr)

The title compound, cis-[Re(C₁₂H₂₄O₄P)Cl₂O(C₁₈H₁₅P)], was prepared from the analogous trans isomer by a trans-cis isomerization reaction. The central Re^V atom adopts a distorted octahedral coordination geometry. The crystal structure was determined as part of a larger study on coordination properties of H-spirophosphorane ligands, the design of transition-metal complexes and their application in catalytic reactions. Recent achievements in this area cover the use of oxorhenium complexes as co-catalysts in oxidation of aldehydes involving molecular oxygen as an oxidant and N-hydroxyphthalimide (NHPI) as a catalyst.