Abstract
The proton magnetic resonance spectra of
several methylnitronaphthalenes, p-nitrotoluene, and nitro-p-xylene have been
determined for dilute carbon tetra- chloride solution. The nitro group has
little effect upon the chemical shift of the methyl group unless they are
"ortho" related. The electronic effects of the nitro group lead to a
general low field shift of the ring protons with little distinction between
quinonoid and non-quinonoid positions. From the effect of nitro group rotation
due to steric hindrance its anisotropic contribution has been estimated in good
agreement with other work.
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52 articles.
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