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Polycyclic Aromatic Hydrocarbon Solute Probes. Part V: Fluorescence Spectra of Pyrene, Ovalene, Coronene, and Benzo[ghi]perylene Dissolved in Liquid Alkylammonium Thiocyanate Organic Salts

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Fluorescence properties of pyrene (Py), benzo[ghi]perylene (BPe), coronene (Co), and ovalene (Ov) dissolved in n-butylammonium thiocyanate, sec-butylammonium thiocyanate, and dipropylammonium thiocyanate are reported. Solvent polarities of the thiocyanate salts are estimated from the fluorescence emission intensity ratios of bands I and III (i.e., Py = I/III) of the polycyclic aromatic hydrocarbon vibronic spectra. Calculated BPe, Co, and Ov values indicate that all three thiocyanate salts are comparable in polarity to cyclohexanone.

Keywords: Fluorescence; UV-visible spectroscopy

Document Type: Research Article


Affiliations: 1: Department of Chemistry, Kent State University, Kent, Ohio 44242 2: Department of Chemistry, University of North Texas, Denton, Texas 76203-5068 3: Chevron Research Company, Richmond, California 94802-0627 4: Department of Chemistry, Wayne State University, Detroit, Michigan 48202

Publication date: September 1, 1989

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