作者:V. B. Murachev、A. I. Nesmelov
DOI:10.1023/a:1009525201771
日期:——
The reaction of aluminum bromide with benzene in n-hexane was studied by Al-27 NMR spectroscopy in the temperature range from -80 to +20 degreesC. The formation Of C6H6. Al2Br6 (1:2) complexes is accompanied by broadening of the resonance line with delta 178. No peak splitting following a decrease in the temperature was observed but the temperature dependence of the line width passed through a maximum near -60 degreesC, A procedure for determination of the constant K for the formation of 1:2 complexes at -20, 0, and +20 degreesC based on the line broadening with an increase in the C6H6 : Al2Br6 molar ratio was proposed. The thermodynamic parameters of complex formation, DeltaG, DeltaH, and DeltaS, were calculated.