HEMICYANINES FROM 3-ARYLBENZOQUINOLINIUM SALTS AND THEIR SPECTRAL-LUMIMISCENCE PROPERTIES

Article abstract of DOI:10.1007/BF00557753

1-(β-Anilinovinyl)-3-arylbenzoquinolinium methiodides were synthesized by the condensation of 1,4-dimethyl-3-arylbenzoquinolinium salts with ethyl orthoformate and aniline or by fusion with N,N-diphenylformamidine.The IR spectra, the absorption spectra in the visible region, and the fluorescence of the dyes in the crystalline state were examined.The introduction of substituents in the 3-phenyl ring of benzoquinoline gives rise to a bathochromic shift of the fluorescence band.