2-Chloro-4-hydroxyanilinium chloride
The title compound, C<sub>6</sub>H<sub>7</sub>ClNO<sup>+</sup>·Cl<sup>-</sup>, crystallizes in ortho-rhom-bic space group <i>Pnma</i> with both cations and anions lying on a mirror plane in the crystal. The C-Cl distance is 1.7289 (6) Å, the C-N distance is 1.4590 (8) Å, and the C-O distance is 1.3617 (8) Å. Parallel mol-ecules form stacks with inter-planar spacing 3.1473 (2) Å, but slipped by 1.97 Å. The NH<sub>3</sub> <sup>+</sup> substituent donates three inter-molecular hydrogen bonds to chloride ions having N⋯Cl distances in the range 3.1514 (6)-3.3019 (2) Å, and the OH group donates an inter-molecular hydrogen bond to chloride with O⋯Cl distance 3.0671 (6) Å. The chloro substituent and OH group do not accept hydrogen bonds from NH or OH.
Authors
- Rao M. Uppu (ORCID: https://orcid.org/0000-0003-1940-7161)
- Sagala Bai
- Patrick Mensah (ORCID: https://orcid.org/0000-0003-2132-3530)
- Frank Rolf Fronczek (ORCID: https://orcid.org/0000-0001-5544-2779)
- Guoqiang Li (ORCID: https://orcid.org/0000-0002-7004-6659)
Institutions
- Louisiana State University (US)
- Southern University and Agricultural and Mechanical College (US)
Publication Details
- Journal
- IUCrData
- Published
- 2025-10-17
- DOI
- https://doi.org/10.1107/s2414314625008934
- Primary Topic
- Synthesis and Reactions of Organic Compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- National Institutes of Health
- National Institute of General Medical Sciences
- Division of Chemistry