Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy p. 355 - 361 (1990)
Update date:2022-08-04
Topics:
Stepanian, S. G.
Smorygo, N. A.
Sheina, G. G.
Radchenko, E. D.
Yakovleva, V. D.
et al.
The solid and the argon-matrix isolated samples of 6-fluorothymine, 1-methyl-6-fluorothymine, 1,3-dimethyl-6-fluorothymine and 3-methylfluorothymine are studied at low temperatures by i.r. spectroscopy.The spectra obtained are interpreted using the calculation of planar normal vibration frequencies.The electronegative fluorine atom in the 6-position is shown to have a strong influence on the normal vibration frequency changes of crystalline and isolated thymine.N-H...F hydrogen bonds are evidenced to exist in crystalline samples.
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