Synthesis and two-photon absorption spectrum of fluorenone-based molecules

被引：10

作者：

Dipold, J. ^{[1
]}

Batista, R. J. M. B. ^{[3
]}

Fonseca, R. D. ^{[1
]}

Silva, D. L. ^{[2
]}

Moura, G. L. C. ^{[3
]}

dos Anjos, J. V. ^{[3
]}

Simas, A. M. ^{[3
]}

De Boni, L. ^{[1
]}

Mendonca, C. R. ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Fis Sao Carlos, Caixa Postal 369, BR-13560970 Sao Carlos, SP, Brazil

[2] Univ Fed Sao Carlos, Dept Ciencias Nat Matemat & Educ, Rod Anhanguera Km 174, BR-13600970 Araras, SP, Brazil

[3] Univ Fed Pernambuco, Dept Quim Fundamental, BR-50740540 Recife, PE, Brazil

来源：

CHEMICAL PHYSICS LETTERS | 2016年 / 661卷

基金：

巴西圣保罗研究基金会;

关键词：

Fluorenone; Two-photon absorption; Density Function Theory; NONLINEAR-OPTICAL PROPERTIES; CONJUGATED OLIGOMERS; FLUORESCENT-PROBES; DERIVATIVES; EXCHANGE;

D O I：

10.1016/j.cplett.2016.08.068

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The two-photon absorption (2PA) of five symmetrical fluorenone-based molecules is studied by ferntosecond wavelength-tunable Z-scan, as well as quantum-chemical calculations. The molecules are transparent for wavelengths greater than 500 nm and two main one-photon absorption bands are observed in the blue region; one weak, centered at 450 nm, and a stronger one at approximately 360 nm. We observed a strong 2PA band located around 720 nm with maxima 2PA cross-sections between 100 and 230 GM. Quantum chemical calculations employing the response function formalism were performed at the Density Function Theory level to support the interpretation of the experimental nonlinear spectra. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：143 / 150

页数：8

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