Solid state NMR study of 1,3‐imidazolidine‐2‐thione, 1,3‐imidazolidine‐2‐selenone and some of their N‐substituted derivatives

Article type: Research Article

Authors: Wazeer, Mohamed I.M. | Isab, Anvarhusein A. | El‐Rayyes, Ali

Affiliations: Department of Chemistry, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia

Note: [] Corresponding author.

Abstract: Solid‐state NMR spectra were recorded for 1,3‐imidazolidine‐2‐thione, 1,3‐imidazolidine‐2‐selenone and some of their N‐substituted derivatives. Spinning side‐bands of thione and selenone carbons were analysed to yield chemical shift anisotropies for these carbons. The NMR spectrum of imidazolidine‐2‐thione (Imt) showed some evidence for the presence of thiol tautomer. Molecular computations were carried out for Imt and its N‐methyl derivative to yield relative energies of various tautomers.

Journal: Spectroscopy, vol. 18, no. 1, pp. 113-119, 2004