{"title":"4-Chlorocurcumin","authors":"Phuong-Truc T. Pham , Mamoun M. Bader","doi":"10.1107/S2414314624012434","DOIUrl":null,"url":null,"abstract":"<div><div>Intra- and inter-molecular O—H⋯O hydrogen bonds are observed in the structure of the title compound.</div></div><div><div>The title compound [systematic name: 4-chloro-5-hydroxy-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,4,6-trien-3-one], C<sub>21</sub>H<sub>19</sub>ClO<sub>6</sub>, is close to planar, with a dihedral angle of 2.61 (7)° between the terminal phenyl groups and three intramolecular O—H⋯O hydrogen bonds occur. In the crystal, the molecules are linked into [201] chains by O—H⋯O hydrogen bonds and weak aromatic π–π stacking is also observed with a shortest centroid–centroid separation of 3.7279 (8) Å.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (189KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":94324,"journal":{"name":"IUCrData","volume":"10 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11799780/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IUCrData","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/org/science/article/pii/S2414314625000069","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
Intra- and inter-molecular O—H⋯O hydrogen bonds are observed in the structure of the title compound.
The title compound [systematic name: 4-chloro-5-hydroxy-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,4,6-trien-3-one], C21H19ClO6, is close to planar, with a dihedral angle of 2.61 (7)° between the terminal phenyl groups and three intramolecular O—H⋯O hydrogen bonds occur. In the crystal, the molecules are linked into [201] chains by O—H⋯O hydrogen bonds and weak aromatic π–π stacking is also observed with a shortest centroid–centroid separation of 3.7279 (8) Å.
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