Spectroscopic properties of two highly substituted PAH heteroanalogs: Octakis(pyrazol-1-yl)naphthalene and octakis (3,5-dimethylpyrazol-1-yl) naphthalene

Abstract

Two heteroanalogs of octaphenylnaphthalene, octakis(pyrazol-1-yl) naphthalene and octakis(3,5-dimethylpyrazol-1-yl)naphthalene have been prepared and fully characterized by NMR (1H and 13C). Although they are very insoluble in ordinary solvents, such as ethanol and ethyl acetate, absorption and emission spectra were recorded. These experiments show that the new compounds behave photophysically like other highly substituted naphthalenes.