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Nmr spectral characteristics of N‐H protons in purine derivatives
Author(s) -
Twanmoh LiMing,
Wood Harry B.,
Driscoll John S.
Publication year - 1973
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570100210
Subject(s) - chemistry , purine , xanthine , chemical shift , proton nmr , proton , carbon 13 nmr , spectral properties , computational chemistry , stereochemistry , organic chemistry , nuclear physics , physics , enzyme
Proton chemical shifts are examined in a series of twelve purine and three 5‐azapurine derivatives. The assignment of N‐H signals in the xanthine and thioxanthine series, as well as the effects of moisture, concentration and temperature on the N‐H and C‐H nmr spectral characteristics are discussed.