A novel fluorescent bisazomethine dye derived from 3-hydroxyquinoxaline-2-carboxaldehyde and 2,3-diaminomaleonitrile |
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| Authors: | V. Arun P.P. Robinson S. Manju P. Leeju G. Varsha V. Digna K.K.M. Yusuff |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Anhui University, Key Laboratory of Functional Inorganic Materials Chemistry of Anhui Province, 230039 Hefei, PR China;2. State Key Laboratory of Crystal Materials, Shandong University, 250100 Jinan, PR China;3. State Key Laboratory of Coordination Chemistry, Nanjing University, 210093 Nanjing, PR China;1. Selcuk University, Science Faculty, Department of Chemistry, Konya, 42031, Turkey;2. Giresun University, Faculty of Engineering, Department of Environmental Engineering, Giresun, 28200, Turkey;1. Aix Marseille Univ, CNRS, Institut de Chimie Radicalaire ICR, UMR 7273, Laboratoire de Pharmaco-Chimie Radicalaire, Marseille, France;2. Assistance Publique-Hôpitaux de Marseille (AP-HM), Oncopharma, Hôpital Nord, Marseille, France;3. Assistance Publique-Hôpitaux de Marseille (AP-HM), Service Central de la qualité et de l''information pharmaceutiques (SCQIP), Marseille, France |
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| Abstract: | A novel bisazomethine Schiff base was synthesised by the condensation of 3-hydroxyquinoxaline-2-carboxaldehyde and 2,3-diaminomaleonitrile. 1H NMR, 13C NMR, HPLC and FT-IR studies revealed that the compound exists in two major tautomeric forms. The Schiff base exhibits positive absorption and fluorescent solvatochromism and displays dual fluorescence with large stoke shifts. Cyclic voltammetric analysis of the compound in 1:1 methanol–THF was influenced by scan rate. Thermal analysis of the compound was undertaken using TG–DTA and DSC. |
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