Hydrogen-bonding network in the organic salts of 4-nitrobenzoic acid |
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Authors: | Yurii M Chumakov Yurii A Simonov Mata Grozav Manuela Crisan Gabriele Bocelli Andrey A Yakovenko Dmitry Lyubetsky |
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Institution: | (1) Institute of Applied Physics, Academy of Sciences of Moldova, MD-2028 Kishinev, Moldova;(2) Institute of Chemistry Timisoara, Romanian Academy, RO-300223 Timisoara, Romania;(3) IMEM-CNR, Parco Area dele Scienze, I-43010 Fontanini-Parma, Italy;(4) Institute of Organoelement Compounds, Russian Academy of Sciences, R-117 813 Moscow, Russia |
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Abstract: | The crystal structures of six novel salts of 4-nitrobenzoic acid — namely, 2-hydroxyethylammonium 4-nitrobenzoate (I), 2-hydroxypropylammonium 4-nitrobenzoate (II), 1-(hydroxymethyl)propylammonium 4-nitrobenzoate (III), 3-hydroxypropylammonium 4-nitrobenzoate (IV), bis-(2-hydroxyethylammonium) 4-nitrobenzoate (V), morpholinium 4-nitrobenzoate (VI) — containing the same anion but different cations have been studied. The ionic forms of I-VI serve as building blocks of the supramolecular architecture, and in crystals they are held together via ionic N-H···O and O-H···O hydrogen bonds. In the crystal packing the building blocks of I-III are self-assembled via N-H...O, O-H···O and C-H...O hydrogen bonds to form the chains which are further consolidated into two-dimensional layers
by the same type of interactions. In IV-VI the chain-like structures have been generated by building blocks. |
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Keywords: | Hydrogen bonding salts of 4-nitrobenzoic acid molecular building blocks |
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