Abstract
A synthetic route to obtain crystalline aluminum phenoxide was
established. Its molecular structure in solid-state and solution is
unambiguously determined by single-crystal X-ray diffraction and H-1,
C-13 and Al-27 NMR spectroscopy. The single-crystal X-ray analysis
revealed the presence of the dimeric THF adduct Al(OPh)(3)center dot
THF(2) with a disordered trigonal bipyramidal geometry at the aluminum
atom which is bonded to a THF ligand, two terminal and two bridging
phenoxy groups (OPh). The solution behavior of the title compound was
investigated by Al-27 NMR in non-coordinating (CDCl3) as well as
coordinating (THF) solvents at different temperatures. The obtained
results indicate the presence of four- and five-coordinate species in
solution. (C) 2016 Elsevier B.V. All rights reserved.
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