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Titolo:
TIME-RESOLVED PHOTOACOUSTIC CALORIMETRY OF TRIPHENYLETHYLENES AND TETRAPHENYLETHYLENES - DO S-0 AND T-1 ENERGY SURFACES CROSS
Autore:
CALDWELL RA; UNETT DJ; VIPOND JJ;
Indirizzi:
UNIV TEXAS,DEPT CHEM RICHARDSON TX 75083
Titolo Testata:
Photochemistry and photobiology
fascicolo: 3, volume: 65, anno: 1997,
pagine: 530 - 534
SICI:
0031-8655(1997)65:3<530:TPCOTA>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
RELAXED TRIPLET ENERGIES; ALKENE TRIPLETS; VOLUME CHANGES; ISOMERIZATION; LIFETIMES; STYRENE; TRANS-1-PHENYLCYCLOHEXENE; 1,2-BIRADICALS; DERIVATIVES; GEOMETRIES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
26
Recensione:
Indirizzi per estratti:
Citazione:
R.A. Caldwell et al., "TIME-RESOLVED PHOTOACOUSTIC CALORIMETRY OF TRIPHENYLETHYLENES AND TETRAPHENYLETHYLENES - DO S-0 AND T-1 ENERGY SURFACES CROSS", Photochemistry and photobiology, 65(3), 1997, pp. 530-534

Abstract

We have studied triphenylethylene, tetraphenylethylene and one derivative of the latter employing time-resolved photoacoustic calorimetry (PAC). We report relaxed triplet energies and triplet lifetimes. These experiments show that a fourth independent parameter can be extracted from PAC data by appropriate experimental design. The results with tetraphenylethylene are compared to data for thermal geometric isomerization of substituted tetraphenylethylenes. The comparison shows that So and T-1 energy surfaces of arylalkenes do not always cross.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 14:53:38