Abdelmoez, S., Abdelrahman, M., Khattab, T. (2019). Synthesis, Solvatochromic Properties and pH Sensory of Novel Symmetrical Bis(Tricyanofuran)hydrazone Chromophore. Egyptian Journal of Chemistry, 62(7), 1197-1206. doi: 10.21608/ejchem.2019.6576.1553
Sherif Abdelmoez; Meram Abdelrahman; Tawfik Khattab. "Synthesis, Solvatochromic Properties and pH Sensory of Novel Symmetrical Bis(Tricyanofuran)hydrazone Chromophore". Egyptian Journal of Chemistry, 62, 7, 2019, 1197-1206. doi: 10.21608/ejchem.2019.6576.1553
Abdelmoez, S., Abdelrahman, M., Khattab, T. (2019). 'Synthesis, Solvatochromic Properties and pH Sensory of Novel Symmetrical Bis(Tricyanofuran)hydrazone Chromophore', Egyptian Journal of Chemistry, 62(7), pp. 1197-1206. doi: 10.21608/ejchem.2019.6576.1553
Abdelmoez, S., Abdelrahman, M., Khattab, T. Synthesis, Solvatochromic Properties and pH Sensory of Novel Symmetrical Bis(Tricyanofuran)hydrazone Chromophore. Egyptian Journal of Chemistry, 2019; 62(7): 1197-1206. doi: 10.21608/ejchem.2019.6576.1553
Synthesis, Solvatochromic Properties and pH Sensory of Novel Symmetrical Bis(Tricyanofuran)hydrazone Chromophore
Dyeing, Printing and Auxiliaries Department, Textile Industries Research Division, National Research Centre, 33 El-Buhouth Street, Dokki, Cairo 12622, Egypt
Receive Date: 09 December 2018,
Revise Date: 09 January 2019,
Accept Date: 14 January 2019
Abstract
Novel symmetrical bis(tricyanofuran) chromophore comprising a hydrazone group was prepared and characterized in order to study its solvatochromism and pH-sensory properties. The preparation of the bis(tricyanofuran)hydrazone chromophore was achieved via a diazo-coupling reaction of benzidine bis(diazonium) salt with tricyanofuran. The chemical structure of the prepared chromophore was confirmed via nuclear magnetic resonance spectroscopy (1H and 13CNMR), Fourier-transform infrared spectroscopy (FTIR), elemental analysis (C, H, N). The UV-visible absorption spectra displayed an interesting solvatochromism in different solvents depending on the polarity of the applied solvent. The pH molecular switching was stimulated under a reversible deprotonation-protonation structural change in acetone solution demonstrating color change from red to violet depending on the pH of the medium from acidic to alkaline, respectively.
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