Zwitterionic 1-{(1E)-[(4-hydroxyphenyl)iminio]methyl}naphthalen-2-olate: crystal structure and Hirshfeld surface analysis

Autor: Bhai R. Devika, C. R. Girija, Suresh Shalini, Mukesh M. Jotani, Edward R. T. Tiekink
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Acta Crystallographica Section E: Crystallographic Communications, Vol 73, Iss 11, Pp 1674-1678 (2017)
Druh dokumentu: article
ISSN: 2056-9890
20569890
DOI: 10.1107/S205698901701458X
Popis: The title zwitterion, C17H13NO2 (systematic name: 1-{(1E)-[(4-hydroxyphenyl)iminiumyl]methyl}naphthalen-2-olate), features an intramolecular charge-assisted N+—H...O− hydrogen bond. A twist in the molecule is evident around the N—C(hydroxybenzene) bond [C—N—C—C torsion angle = 39.42 (8)°] and is reflected in the dihedral angle of 39.42 (8)° formed between the aromatic regions of the molecule. In the crystal, zigzag supramolecular chains along the a axis are formed by charge-assisted hydroxy-O—H...O(phenoxide) hydrogen bonding. These are connected into a layer in the ab plane by charge-assisted hydroxybenzene-C—H...O(phenoxide) interactions and π–π contacts [inter-centroid distance between naphthyl-C6 rings = 3.4905 (12) Å]. Layers stack along the c axis with no specific interactions between them. The Hirshfeld surface analysis points to the significance C...H contacts between layers.
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