ELECTRONIC-STRUCTURES AND SPECTRA OF 6-MERCAPTOPURINE AND 6-THIOGUANINE

Authors
SANTHOSH C MISHRA PC
Citation
C. Santhosh et Pc. Mishra, ELECTRONIC-STRUCTURES AND SPECTRA OF 6-MERCAPTOPURINE AND 6-THIOGUANINE, Spectrochimica acta. Part A: Molecular spectroscopy, 49(7), 1993, pp. 985-993
Citations number
40
Categorie Soggetti
Spectroscopy
Journal title
Spectrochimica acta. Part A: Molecular spectroscopy → ACNP
ISSN journal
05848539
Volume
49
Issue
7
Year of publication
1993
Pages
985 - 993
Database
ISI
SICI code
0584-8539(1993)49:7<985:EASO6A>2.0.ZU;2-O
Abstract
Ultraviolet absorption, steady-state fluorescence and excitation spect ra of 6-mercaptopurine (6MP) and 6-thioguanine (6TG) have been studied , and excited state life-time measurements on their fluorescence perfo rmed. The experimental results have been interpreted with the help of molecular orbital calculations. The study shows that these molecules p redominantly exist in thione forms. The properties of the molecules ha ve been compared with those of guanine and the possible significance o f the results is discussed.