SPECTROSCOPIC STUDIES SF MOLECULAR INTERACTION OF 2-THIOURACIL AND DITHIOURACIL DONORS WITH 7,7,8,8-TETRACYANOQUINODIMETHANE AS AN ELECTRON-ACCEPTOR

Authors
RANDHAWA HS SIRDHANA B JASSAL MS SEKHON BS
Citation
Hs. Randhawa et al., SPECTROSCOPIC STUDIES SF MOLECULAR INTERACTION OF 2-THIOURACIL AND DITHIOURACIL DONORS WITH 7,7,8,8-TETRACYANOQUINODIMETHANE AS AN ELECTRON-ACCEPTOR, Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical, 36(1), 1997, pp. 68-71
Citations number
11
Categorie Soggetti
Chemistry
Journal title
Indian journal of chemistry. Sect. A: Inorganic, physical, theoretical & analytical → ACNP
ISSN journal
03764710
Volume
36
Issue
1
Year of publication
1997
Pages
68 - 71
Database
ISI
SICI code
0376-4710(1997)36:1<68:SSSMIO>2.0.ZU;2-M
Abstract
The electronic absorption and electron spin resonance studies on the i nteraction of thiouracil and dithiouracil as donors with 7,7,8,8-tetra cyanoquinodimethane (TCNQ) as an acceptor reveal that the absorption b ands in these systems are not due to the charge transfer complex but a re due to the formation of products (free radical in nature). The equi librium constants, K, for the D-A systems as determined from the Benes i Hildebrand model follow the direct trend of pK(H) of the donors and K(dithiouracil) >. K(thiouracil).