A comparison of classical and quantum-me
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P. I. Rose
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Article
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1973
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John Wiley and Sons
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English
โ 239 KB
## Abstract The proton resonance spectra of a series of 2,7โdisubstitutedโ4,5โbis(2โpyridyl)phenanthreneโ3,6โdiols are examined with emphasis on the shielding effects produced by aromatic โring currents.โ In this series, two pyridine rings are rigidly held less than 3.4 ร apart and with considerabl