Non-first order coupling in aromatic rings Flashcards
1
Q
3JHaHb-ortho
A
8-10 Hz
2
Q
4JHaHb-meta
A
1-2.5 Hz
3
Q
5JHaHb-para
A
0.25-0.5 Hz
normally to small to be observed
4
Q
Estimation of Proton Chemical Shift in Substituted Aromatics
A
chemical shift signH = 7.27 + ∑zi
5
Q
A