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Titolo:
Spectroscopic characteristics of coumarin 540 A in sol-gel
Autore:
Farooqui, AS; Zaidi, ZH;
Indirizzi:
Jamia Millia Islamia, Dept Phys, New Delhi 110025, India Jamia Millia Islamia New Delhi India 110025 hys, New Delhi 110025, India
Titolo Testata:
SPECTROSCOPY LETTERS
fascicolo: 3, volume: 34, anno: 2001,
pagine: 301 - 309
SICI:
0038-7010(200105)34:3<301:SCOC5A>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLECULES; DYES;
Keywords:
electronic absorption spectra; coumarin 540 A; sol-gel; CNDO/S-CI;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Farooqui, AS Jamia Millia Islamia, Dept Phys, Jamia Nagar, New Delhi 110025, India Jamia Millia Islamia Jamia Nagar New Delhi India 110025 ndia
Citazione:
A.S. Farooqui e Z.H. Zaidi, "Spectroscopic characteristics of coumarin 540 A in sol-gel", SPECT LETT, 34(3), 2001, pp. 301-309

Abstract

The present paper deals with the spectroscopic study of coumarin 540 A in sol-gel and other liquid solvents in the 190-500 nm wavelength region. The electronic absorption spectra are compared with coumarin and its parent aromatic molecule anthracene. Theoretically, ground state geometries are optimized using the MNDO molecular orbital method. The electronic energy levels have been calculated using the optimized geometries and the CNDO/S-CI method. The role of the sol-gel matrix and the effect of hydrogen bonding is discussed in order to explain the observed spectral characteristics.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/03/20 alle ore 19:40:31