Abstract
A detailed interpretation of experimental spectral data on 1H and 13C NMR chemical shifts of compounds determined from the DFT calculation is reported. The DFT calculated values are in good agreement with the experimental results. The NBO analysis is used to investigate the stability of 1-alkylAICA. The HOMO and LUMO analysis is performed to study the charge transfer property within the molecule as well as various molecular properties viz EHOMO, ELUMO, energy gap, ionization potential, electron affinity, electronegativity, chemical potential, electrophilicity, global hardness as well global softness, and so on. The formation of a 1D nano structure of 1-alkylAICA compounds is detected by SEM studies. The UV and fluorescence study is performed to observe the variation of their photophysical properties on going from the monomer to the nanostructure. TDDFT is applied to analyze experimentally measured absorption and emission spectra. A fluorescence life-time measurement is performed for the series of 1-AlkylAICA.
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Acknowledgments
The author thanks the University of Calcutta for providing the laboratory and spectroscopic facilities. The author thanks Prof. (retd.) Sibdas Ray, Dr. Kaliprasanna Dhara, and Aniruddha Ganguly of the Department of Chemistry, University of Calcutta for their support.
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Text © The Author(s), 2019, published in Zhurnal Strukturnoi Khimii, 2019, Vol. 60, No. 6, pp. 1031–1048.
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The author thanks the Council of Scientific and Industrial Research (CSIR), New Delhi, India for the award of a Senior Research Fellowship under grant No. 09/028(0795)/2010-EMR-I. Single crystal X-ray diffraction studies were performed using single crystal diffractometer facilities offered by DST-FIST program at the Chemistry Department, University of Calcutta.
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Supplementary Materials to: Experimental and Theoretical Studies on Molecular Structures, Nanostructural Features, and Photophysical Properties of 5-Amino-1-Alkylimidazole-4-Carboxamide Compounds
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Das, A. Experimental and Theoretical Studies on Molecular Structures, Nanostructural Features, and Photophysical Properties of 5-Amino-1-Alkylimidazole-4-Carboxamide Compounds. J Struct Chem 60, 990–1007 (2019). https://doi.org/10.1134/S0022476619060143
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DOI: https://doi.org/10.1134/S0022476619060143