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The structure of the cations from 2– and 4‐pyrimidones
Author(s) -
Shoffner James P.,
Bauer Ludwig,
Bell Charles L.
Publication year - 1970
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.5570070304
Subject(s) - chemistry , protonation , pyrimidine , solid state , absorption (acoustics) , infrared , medicinal chemistry , photochemistry , stereochemistry , organic chemistry , ion , physics , acoustics , optics
An infrared spectral investigation of a number of pyrimidine and pyrimidone hexachloroantimonates is reported. Typical aromatic absorption bands found in pyrimidinium salts were absent in the pyrimidone cations. 2‐And 4‐Pyrimidone hexachloroantimonates, as well as their N ‐methyl‐ and N,N' ‐dimethyl derivatives, exhibit intense carbonyl absorption bands between 1720–1729 cm −1 (solid state) which corroborates N ‐protonation of pyrimidones.