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Titolo:
RESOLUTION OF DIFFERENT CONFORMERS OF METHOXY-TRANS-STILBENES VIA ROTATIONAL COHERENCE SPECTROSCOPY
Autore:
TROXLER T; TOPP MR; METZGER BS; SPANGLER LH;
Indirizzi:
UNIV PENN,DEPT CHEM PHILADELPHIA PA 19104 MONTANA STATE UNIV,DEPT CHEM & BIOCHEM BOZEMAN MT 59717
Titolo Testata:
Chemical physics letters
fascicolo: 4-6, volume: 238, anno: 1995,
pagine: 313 - 318
SICI:
0009-2614(1995)238:4-6<313:RODCOM>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
S1 ELECTRONIC STATES; LARGE MOLECULES; CONSTANTS; S0;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
T. Troxler et al., "RESOLUTION OF DIFFERENT CONFORMERS OF METHOXY-TRANS-STILBENES VIA ROTATIONAL COHERENCE SPECTROSCOPY", Chemical physics letters, 238(4-6), 1995, pp. 313-318

Abstract

The excitation spectra of 4-methoxy-t-stilbene (MoS) and 4-methoxy,4'-methyl-t-stilbene (MoMeS) both exhibit two electronic origin transitions, separated by 260-280 cm(-1). This suggests the presence of two structural forms, as predicted by semi-empirical quantum mechanical calculations. The two forms should be 'syn' and 'anti', where the methoxy group is coplanar with the mean plane of the aromatic molecule. Rotational coherence spectroscopy has identified the syn and anti rotamers of the two species, establishing in both cases that the syn form has the longer-wavelength absorption.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 01:59:16