The following is an abstract for the selected article. A PDF download of the full text of this article is available here. Members may download full texts at no charge. Non-members may be charged a small fee for certain articles.
Spectroscopic Properties of Polycyclic Aromatic Compounds. Part IV: Effect of Solvent Polarity and Nitromethane on the Fluorescence Emission Behavior of Select Bipolycyclic Aromatic Hydrocarbons
Volume 48, Number 4 (April 1994) Page 458-464
Tucker, Sheryl A.; Griffin, Jason M.; Acree, William E.; Zander, Maximilian; Mitchell, Reginald H.
Fluorescence emission behavior is reported for 1,1'-binaphthalene, 2,2'-binaphthalene, 9,9'-bianthracene, 9,9'-biphenanthrene, 1,1'-methylene-bisnaphthalene, and 1,1',2,2'-tetrahydro-5,5'-biacenaphthylene dissolved in organic nonelectrolyte solvents of varying polarity, refractive index, and dielectric constant. Fluorescence measurements are used to classify the six bipolycyclic aromatic hydrocarbon (bi-PAH) solutes as either solvatochromic probe or nonprobe molecules, depending upon whether measured fluorescence properties vary with solvent nature. Of the bi-PAHs studied, only 9,9'-bianthracene exhibited probe character. Possible correlations between 9,9'-bianthracene's maximum intensity emission wavelength and select functions of solvent refractive index and dielectric constant were examined. Also reported is the effect that nitromethane has on bi-PAH fluorescence emission intensities.