Synthesis and spectral-luminescence properties of 2-(2′-tosylaminophenyl)benzimidazole and its substituted derivatives |
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| Authors: | L. Sh. Afanasiadi I. N. Tur B. M. Bolotin |
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| Affiliation: | (1) All-Union Scientific-Research Institute of Single Crystals, Scintillation Materials, and Especially Pure Chemical Substances, 310141 Kharkov;(2) All-Union Scientific-Research Institute of Chemical Reagents and Especially Pure Chemical Substances, 107258 Moscow |
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| Abstract: | Tosylamino-substituted 2-arylbenzimidazoles have blue or green fluorescence in the crystalline state and in toluene at room temperature. The effect of the substituents on the position of the absorption and fluorescence bands and on the strength of the intramolecular hydrogen bond was investigated. An anomalously large Stokesian shift within the limits 8800–11450 cm¡1 is characteristic for compounds that contain an o-tosylamino group. |
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