- #1
FTNMR
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Why do we assume that the circulating pi electrons induces another magnetic field, B_in, that adds to the external mag field, B_ext, instead of opposing B_ext? Couldnt the pi electrons just as easily oppose B_ext?
This lecture says the protons on benzene will experience greater effectual field, B_eff, because the circulating pi electrons induces another field that adds to the B_ext.
But if ring is flipped, then wouldn't that mean that B_in then opposes B_ext.. Also what if pi electrons circulate other direction? then according to RHR B_in would again oppose B_ext.
Im wondering if this has something to do with the fact that I am looking at this in 2 dimensions.. maybe not important idk..
Thanks for any explanation or help
This lecture says the protons on benzene will experience greater effectual field, B_eff, because the circulating pi electrons induces another field that adds to the B_ext.
But if ring is flipped, then wouldn't that mean that B_in then opposes B_ext.. Also what if pi electrons circulate other direction? then according to RHR B_in would again oppose B_ext.
Im wondering if this has something to do with the fact that I am looking at this in 2 dimensions.. maybe not important idk..
Thanks for any explanation or help