BenzeneDensity Functional CalculationsHyperconjugationBenzene, the prototype of aromatics, has six equivalent C〤 bonds (1.397 ), which are intermediate between a C〤 double bond and a C〤 single bond. For over 80 years, chemists have spent much effort on freezing a localized structure to obtain ...
Thus, the mesitylene cation is more stable than the toluene cation by a factor of 280,000 and more stable than the other trimethylbenzenes by a factor of 70. Competition experiments among various, 1, 3, 5-trialkylbenzene show no change in basicity as the alkyl groups vary from methyl to...
The structures of 1-methoxy-4-[(phenylselanyl)methyl]benzene, C14H14OSe, (1), and 1-nitro-4-[(phenylselanyl)methyl]benzene, C13H11NO2Se, (2), were determined at 130 K. The two structures, which differ in that (1) contains an electron-rich aromatic ring and (2) contains an ...
The structures of 1-methoxy-4-[(phenylselanyl)methyl]benzene, C14H14OSe, (1), and 1-nitro-4-[(phenylselanyl)methyl]benzene, C13H11NO2Se, (2), were determined at 130 K. The two structures, which differ in that (1) contains an electron-rich aromatic ring and (2) contains an ...