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Velasco Ximello M, Bernès S, Pérez-Benítez A, Hernández Pareja U, Mendoza A, Juárez Posadas JR, Vázquez Bravo J. Crystal structure of r-1, c-2-dibenzoyl- t-3, t-4-bis-(2-nitro-phen-yl)cyclo-butane. Acta Crystallogr E Crystallogr Commun 2017; 73:1866-1870. [PMID: 29250404 PMCID: PMC5730241 DOI: 10.1107/s2056989017015936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 11/01/2017] [Indexed: 11/10/2022]
Abstract
The condensation reaction of aceto-phenone (1-phenyl-ethan-1-one) with 2-nitro-benzaldehyde in the molten state yielded the expected chalcone, (E)-3-(2-nitro-phen-yl)-1-phenyl-prop-2-en-1-one, and, unexpectedly, the title compound, C30H22N2O6, which results from the syn head-to-head [2 + 2] cyclo-addition of the chalcone. The mol-ecular structure of the dimer shows that the four benzene rings of the substituents are oriented in such a way that potential steric hindrance is minimized, whilst allowing some degree of inter-molecular π-π inter-actions for crystal stabilization. In the mol-ecule, one nitro group is disordered over two positions, with occupancies for each part of 0.876 (7) and 0.127 (7).
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Affiliation(s)
- Manuel Velasco Ximello
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC8 Complejo de Ciencias, C.U., 72570 Puebla, Pue., Mexico
| | - Sylvain Bernès
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, 72570 Puebla, Pue., Mexico
| | - Aarón Pérez-Benítez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, 72570 Puebla, Pue., Mexico
| | - Ulises Hernández Pareja
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC8 Complejo de Ciencias, C.U., 72570 Puebla, Pue., Mexico
| | - Angel Mendoza
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC8 Complejo de Ciencias, C.U., 72570 Puebla, Pue., Mexico
| | - Jorge R Juárez Posadas
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC8 Complejo de Ciencias, C.U., 72570 Puebla, Pue., Mexico
| | - Jaime Vázquez Bravo
- Ingeniería en Biotecnología, Universidad Politécnica Metropolitana de Puebla, Popocatépetl s/n, Tres Cerritos, 72480 Puebla, Pue., Mexico
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