856644-39-8Relevant academic research and scientific papers
Variable-temperature NMR study of dynamic exchange in sodium (μ-fluoro)bis(triethylaluminate)
Harrison, James J.,Beach, David L.,Young, Donald C.,Seshadri, Kalkunte S.,Nelligan, John D.
, p. 343 - 346 (2008/10/08)
Variable-temperature 13C studies and 1H and 27Al NMR studies have been carried out on mixtures of Na[Al2Et6F] and Al2Et6. We observe that Na[Al2Et6F] undergoes facile exchange of AlEt3 with Al2Et6 in contrast to previously published work. The exchange process has been shown to involve a dissociative mechanism. A ΔH?of 20.4 kcal mol-1 (85.4 kJ mol-1) and ΔS? of 18.7 eu were determined. The value of ΔH? closely approximates the bond dissociation energy for the Al-F bond in Et3Al-F-AlEt3. This is the first reported bond dissociation energy for the Al-F bond in this unusual class of compounds.
