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New tables of ‘ring current’ shielding in proton magnetic resonance

1972; Wiley; Volume: 4; Issue: 2 Linguagem: Inglês

10.1002/mrc.1270040203

0030-4921

C.W. Haigh, R. B. Mallion,

Solid-state spectroscopy and crystallography

Abstract A new theory 6 for ‘ring current’ effects on the chemical shifts of protons in or out of the plane of a benzene ring is summarized, and pictorially compared with the predictions of the earlier semi‐classical theory of Johnson and Bovey. 1 In the Appendix are presented extensive numerical tables of the predicted shieldings.