Infrared data are given in cm'1(abbreviations: (vs) very strong, (s) strong, (m) medium, (w) weak), (vw) very weak. M ssbauer parametersare given in mms'1 (abbreviations: Q.S = quadrupole splitting, I.S = isomer shift, Γ = full width at half-height).RESULTS AND DISCUSSION:Le...
In As and P heteroarenes, for X = NO2 there is a strong enhancement of the EA properties for the 2-substitution. Regarding the 4-derivatives, the NO2 is more EA than in the 3-derivatives, but only slightly. In the case of X = NH2, the amino group in the 2-derivatives is the ...