Structural effects in solvolytic reactions. 43. Effect of increasing electron demand on the carbon-13 NMR shifts for 2-aryl-3-methyl-2-butyl cations. A static system becoming an equilibrating system with electron-withdrawing substituents
NMR isotope shifts as a probe of a rapid nondegenerate equilibrium in 2-aryl-3-methyl-2-butyl cations
作者:David A. Forsyth、Yi Pan
DOI:10.1016/s0040-4039(01)80836-4
日期:1985.1
EquilibriumNMRisotopeshifts can be detected for nondegenerate equilibria by comparison with intrinsicshifts in static model compounds. Such equilibriumshifts are smaller than in similar nondegenerate equilibria.