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Hydrogen bonding framework in imidazole derivatives: Crystal structure and Hirshfeld surface analysis Singh, Praveen Kumar, Ranjeet Tewari, Ashish Kumar Synthesis Crystal structure Hydrogen bonding Imidazole derivative Hirshfeld surface analysis Intermolecular interactions A series of imidazole derivatives (1-3) were synthesized with three component reaction among benzil, ammonium acetate and formaldehyde/aromatic aldehyde at 110 °C without a catalyst and solvent. These synthesized imidazole derivatives have shown intermolecular hydrogen bonding such as N-H···N and O-H···N. The imidazole 1 and 2 exhibited N-H···N intermolecular hydrogen bonding while imidazole 3 exhibited O-H···N intermolecular hydrogen bonding. The hydrogen bonds in imidazoles were studied by X-ray crystallography and Hirshfeld Surface Analysis at dnorm surface which show the visible red spots, indicated for hydrogen bonds. Further, Hirshfeld surface analysis also shows the percentage of all intermolecular interactions. Atlanta Publishing House LLC 2020-03-31 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/plain text/plain text/plain https://www.eurjchem.com/index.php/eurjchem/article/view/1945 10.5155/eurjchem.11.1.50-59.1945 European Journal of Chemistry; Vol. 11 No. 1 (2020): March 2020; 50-59 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/1945/pdf_1945 https://www.eurjchem.com/index.php/eurjchem/article/view/1945/2660 https://www.eurjchem.com/index.php/eurjchem/article/view/1945/2661 https://www.eurjchem.com/index.php/eurjchem/article/view/1945/2662 Copyright (c) 2020 Authors