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An infrared study on N ‐methyloxazolidine‐2‐thione and ‐2‐selenone
Author(s) -
Devillanova Francesco A.,
Verani Gaetano
Publication year - 1980
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.5570170330
Subject(s) - chemistry , oxazolidine , infrared , infrared spectroscopy , stereochemistry , organic chemistry , optics , physics
An infrared investigation on N ‐methyloxazolidine‐2‐thione and ‐2‐selenone in the range 4000–200 cm −1 is reported. The direct comparison of the ir spectra for these compounds allowed us to identify the vibrations related to CS and CSe, and support the previous assignments of the CS modes in the oxazolidine‐2‐thione; for this compound it has not been possible to synthesize its selenium isologue. On the whole, these experimental assignments are in agreement with those reported for oxazolidine‐2‐thione. The CS and CSe modes, contributing to the bands falling below 600 cm −1 , are compared with those of several similar pentaatomic rings.