Abstract
New organic luminophores that have orange-red and red luminescence and contain conjugated 1,3,5-triaryl-2-pyrazoline and 7H-imidazo[1,2-b]benz[de]isoquinoline-7-one groupings in the same molecule were synthesized. The introduction of a 2-naphthyl residue in the 1 position of the pyrazoline ring and annelation of 1,2-naphthylene or 4,5-naphthylene systems to the imidazole ring in place of the phenylene system lead to bathochromic and bathofluoric effects. The luminescence maxima of the synthesized compounds are found at 575 to 645 nm, and the quantum yields range from 0.7 to 0.9.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 262–264, February, 1983.
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Shevchenko, É.A., Bondarenko, V.E. & Proshkina, V.V. Organic luminophores with orange-red and red luminescence. Chem Heterocycl Compd 19, 214–217 (1983). https://doi.org/10.1007/BF00506439
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DOI: https://doi.org/10.1007/BF00506439