کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1235793 968854 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electronic absorption spectra of cresyl violet acetate in anisotropic and isotropic solvents
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Electronic absorption spectra of cresyl violet acetate in anisotropic and isotropic solvents
چکیده انگلیسی

The isotropic and anisotropic solvation characteristics of cresyl violet acetate (CVA) were investigated in isotropic liquid solutions and in polar nematic matrices as a function of the solvent type and concentration. The interaction of the ionic dye with the anisotropic surrounding and with that of the isotropic solvents was investigated and compared. The experimental result suggests that the nematic liquid crystalline solvents might create stronger solvation than the isotropic solvents. The spectral shifts were correlated by the solvent permittivity and Kamlet–Taft parameters. The polarized absorption spectra of cresyl violet acetate were measured between 400 and 800 nm and the dichroic ratio R and degree of anisotropy S of this dye in the liquid crystalline host determined.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 66, Issue 3, March 2007, Pages 717–725
نویسندگان
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