Two-photon solvatochromism III: Experimental study of the solvent effects on two-photon absorption spectrum of p-nitroaniline

被引：25

作者：

Wielgus, Malgorzata ^{[1
]}

Michalska, Joanna ^{[1
]}

Samoc, Marek ^{[1
]}

Bartkowiak, Wojciech ^{[1
]}

机构：

[1] Wroclaw Univ Technol, Inst Phys & Theoret Chem, PL-50370 Wroclaw, Poland

来源：

DYES AND PIGMENTS | 2015年 / 113卷

关键词：

Two-photon absorption; Solvatochromism; Solvent effect; p-nitroaniline; Two-level model; Nonlinear optics; NONLINEAR-OPTICAL PROPERTIES; POLARIZABLE CONTINUUM MODEL; DIPOLE-DIPOLE INTERACTIONS; CHARGE-TRANSFER DYNAMICS; FIELD LINEAR-RESPONSE; PUSH-PULL MOLECULES; EXCITED-STATE; PHOTOPHYSICAL PROPERTIES; 1ST HYPERPOLARIZABILITY; THEORETICAL TREATMENT;

D O I：

10.1016/j.dyepig.2014.09.009

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

We report on the solvent influence on the two-photon absorption spectra of p-nitroaniline. Measurements of the two-photon absorption cross section values were performed in three solvents (1,4-dioxane, propylene carbonate, dimethyl sulfoxide) using the Z-scan technique. The most important finding in this report is the observation that two-photon absorption cross section value, corresponding to the intramolecular charge-transfer state, is significantly intensified with the solvent polarity increase. In the case of a strongly positive solvatochromic molecule, the two-level model correctly predicts the observed two-photon absorption cross section value increase caused by the solvent polarity change. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：426 / 434

页数：9

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