Abstract
Complexes of the type M(hfac) 2·polyether, bis(1,1,1,5,5,5-hexafluoropentane-2,4-dionato)M·polyether (MBa, St, polyether = tetraglyme; MBa, polyether = hexaglyme; MCa, polyether = triglyme), are obtained in high yield upon reaction of M(hfac) 2 with one equivalent of polyether. The complexes thus obtained appear to be sublimable, non-hygroscopic, thermally stable solids. They have been characterized by elemental analysis, molecular weight determinations, NMR spectroscopy, mass spectrometry, IR and TG-DTA analysis. The complex Ba(hfac) 2·tetraglyme has been characterized by an X-ray structure determination. The barium atom is found to be coordinated by all nine oxygen atoms, with the polyether ligand wrapped around barium in a plane, with one hfac ligand on top of this plane and another below. The absence of short intermolecular interactions explains why the compound sublimes easily without decomposition.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call