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Polycyclic Aromatic Hydrocarbon Solute Probes. Part IX: Evaluation of Additional Pentaphene, Pentacene, and Pyranthrene Compounds as Possible Solvent Polarity Probes

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Fluorescence emission spectra are reported for benzo[rst]dinaphtho[2,1,8,7defg;2',1',8',7'ijkl]pentaphene, dibenzo[a,rst]naphtho[8,1,2cde]pentaphene, dibenzo[fg,ij]pentaphene (also called dibenzo[b,n]perylene), dibenzo[de,kl]naphtho[1,2,3,4rst]pentaphene, dibenzo[h,rst]pentaphene, pyranthrene, tetrabenzo[de,hi,op,st]pentacene, and dinaphtho[2,1,8,7defg;2',1',8',7'opqr]pentacene dissolved in various organic solvents. Results of these measurements are used to screen PAHs for potential solvent polarity behavior. Of the eight PAHs examined, only dibenzo-[h,rst]pentaphene exhibited probe behavior as evidenced by selective, systematic emission intensity enhancement of band I with increasing solvent polarity.

Keywords: Fluorescence; Spectroscopic techniques

Document Type: Research Article


Affiliations: 1: Department of Chemistry, University of North Texas, Denton, Texas 76203-5068, U.S.A. 2: Chevron Research Company, Richmond, California 94802-0627, U.S.A. 3: Rütgerswerke AG, Kekuléstrasse 30, D-4620 Castrop-Rauxel, F.R.G.

Publication date: March 1, 1991

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