3 years ago

Thermal, optical and Photophysical behaviour of some Mesogenic Benzimidazole-based Schiff-bases

Thermal, optical and Photophysical behaviour of some Mesogenic Benzimidazole-based Schiff-bases
A series of luminescent benzimidazole-based Schiff-bases, 5-(alkyloxy)-2-(((2-(4-(alkyloxy)phenyl)-1H–benzimidazol-5-yl)imino)methyl)phenol, with different alkyl chains was synthesized and characterized by 1H & 13C NMR, UV–Vis, fluorescence and mass spectrometry. All the compounds were found to be mesogenic (smectic A1), as studied by POM and DSC techniques, and their green emission was implied by fluorescence studies. Electrochemical study of one of the compounds, 3d, shows a band gap of 2.56eV with HOMO and LUMO energy levels at −5.22eV and −2.67eV, respectively.

Publisher URL: www.sciencedirect.com/science

DOI: S0167732217307857

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