Determination of dipole moment in the ground and excited state by experimental and theoretical methods of N-nonyl acridine orange

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• 作者：Agnieszka M. Wiosetek-Reske ; Stanisł ; aw Wysocki and Grzegorz W. Bą ; k
• 关键词：Absorption and fluorescence spectra ; Solvatochromism ; Dipole moment ; Acridines
• 刊名：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
• 出版年：2005
• 出版时间：December 2005
• 年：2005
• 卷：62
• 期：4-5
• 页码：1172-1178
• 全文大小：166 K

文摘

The absorption and fluorescence spectra of N-nonyl acridine orange are determined at room temperature (298 K) in cyclohexane, benzene, carbon tetrachloride, chloroform, chlorobenzene and dichloromethane. The ground state of dipole moment was obtained by impedance measurements using Guggenheim–Debeye's method.

The experimental excited state dipole moment of N-nonyl acridine orange was determined using Bakhshiev's and Kawski–Chamma–Viallet's formulae and solvent polarity parameter proposed by Reichardt. These experimental results were completed with theoretical results using quantum chemical methods. The experimental (μ_exp = 10.76 D) and theoretical (μ_cal = 9.9 D) dipole moments in the ground and excited state () were compared.