Shaibah MAE, Yathirajan HS, Manju N, Kalluraya B, Rathore RS, Glidewell C. Two isostructural 3-(5-ar-yloxy-3-methyl-1-phenyl-1
H-pyrazol-4-yl)-1-(thio-phen-2-yl)prop-2-en-1-ones: disorder and supra-molecular assembly.
Acta Crystallogr E Crystallogr Commun 2020;
76:48-52. [PMID:
31921451 PMCID:
PMC6944090 DOI:
10.1107/s205698901901658x]
[Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 12/09/2019] [Indexed: 11/13/2022]
Abstract
Two new chalcones containing both pyrazole and thio-phene substituents have been prepared and structurally characterized. 3-(3-Methyl-5-phen-oxy-1-phenyl-1H-pyrazol-4-yl)-1-(thio-phen-2-yl)prop-2-en-1-one, C23H18N2O2S (I), and 3-[3-methyl-5-(2-methyl-phen-oxy)-1-phenyl-1H-pyrazol-4-yl]-1-(thio-phen-2-yl)prop-2-en-1-one, C24H20N2O2S (II), are isomorphous as well as isostructural, and in each the thio-phene substituent is disordered over two sets of atomic sites having occupancies 0.844 (3) and 0.156 (3) in (I), and 0.883 (2) and 0.117 (2) in (II). In each structure, the mol-ecules are linked into sheets by a combination of C-H⋯N and C-H⋯O hydrogen bonds. Comparisons are made with some related compounds.
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