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

Volume 45, Number 3 (April 1991) Page 424-428

Tucker, Sheryl A.; Zvaigzne, Anita I.; Acree, William E.; Fetzer, John C.; Zander, Maximilian


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.