What structural or electronic aspect of
(2E)-1-(4-Nitrophenyl)-3-(2-pyridinyl)-2-propen-1-one prevents the
resonance argument and empirical parameters from adequately
predicting the...
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Chemistry
What structural or electronic aspect of(2E)-1-(4-Nitrophenyl)-3-(2-pyridinyl)-2-propen-1-one prevents theresonance argument and empirical parameters from adequatelypredicting the H-NMR chemical shifts of the alpha C-H?
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4.2 Ratings (707 Votes)
Predicting the chemical shiftof the olefinic hydrogensdouble bond hydrogens specially alphahydrogen from carbonyl is very tedious Several electronic andstructural effects play a rolea had it been pure sp2 olefinic
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