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Titolo:
Study on second harmonic generation of 10-hydrocarbylacridones
Autore:
Song, HC; Chen, YW; Zheng, XL; Ying, BN;
Indirizzi:
Zhongshan Univ, Dept Chem, Guangzhou 510275, Peoples R China Zhongshan Univ Guangzhou Peoples R China 510275 510275, Peoples R China
Titolo Testata:
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
fascicolo: 9, volume: 57, anno: 2001,
pagine: 1717 - 1723
SICI:
1386-1425(200108)57:9<1717:SOSHGO>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
2ND-ORDER POLARIZABILITIES; SOLVATOCHROMIC METHOD;
Keywords:
10-hydrocarbylacridones; second-order polarizabilities; second harmonic generation; composite magnitude;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: Song, HC Zhongshan Univ, Dept Chem, Guangzhou 510275, Peoples R China Zhongshan Univ Guangzhou Peoples R China 510275 Peoples R China
Citazione:
H.C. Song et al., "Study on second harmonic generation of 10-hydrocarbylacridones", SPECT ACT A, 57(9), 2001, pp. 1717-1723

Abstract

Values of second-order polarizabilities (beta (xxx)), the composite magnitude (beta (CT mug)) of molecular hypersusceptibilities and the second harmonic generation (SHG) of microcrystal were used to characterize and evaluatethe second-order nonlinear optical performance of 10-hydrocarbylacridones. Using Nd:YAC as a laser source, the SHG values of these compounds in powder as compared with urea powder were obtained, compared with the calculated values of beta (CT mug) and beta (xxx) found by solvatochromic method. The results showed that the SHG values of compounds 1, 2, and 5 are larger thanthat of urea. Compound 5 has a highest beta (CT mug) value among the 12 compounds. Although the different electronegativities of hydrocarbyl (R) attached to nitrogen atom should have an effect on the extent of intralmolecular charge-transfer and further influence SHG, beta (CT mug) or beta (xxx) values, the relationships between electronegativity of R and SHG, beta (CT mug), or beta (xxx) could not be Found. But it is found that the bigger the donating-electron ability of R, the longer the maximum absorption wavelengthof 10-hydrocarbylacridone molecules. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/08/20 alle ore 22:28:59