The i.r. spectra of the same substance in dilute solutions in nonpolar solvents have also been obtained. Taking the C Br stretching bands as a guide to qualitative understanding of the experimental results it is shown that point group C 2 h is a reasonable working approximation to the ...
1-Butyl-2,3,4,5-tetramethylimidazolium bromide was synthesized by solving tetramethyl imidazole (25.50 g, 0.205 mol) and 1-bromobutane (21.85 mL, 0.274 mol) in 100 mL of toluene (J. T. Baker, 99.5%). The product was obtained by cooling after refluxing at 7...
Gas-phase electron diffraction (ED), together with ab initio molecular orbital calculations, have been used to determine the structure and conformational composition of 1-chlorobutane, 1-bromobutane, and 1-iodobutane. These molecules may in principle exist as mixtures of five different conformers, ...