Crystal structure of r-1,c-2-dibenzoyl-t-3,t-4-bis(2-nitrophenyl)cyclobutane

Acta Crystallographica Section E: Crystallographic Communications

Jorge R. Juárez Posadas¹  Angel Mendoza¹  Ulises Hernández Pareja¹  Manuel Velasco Ximello¹  Aarón Pérez-Benítez²  Jaime Vázquez Bravo³  Sylvain Bernès⁴ 

[1] Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Edif. IC8 Complejo de Ciencias, C.U., 72570 Puebla, Pue., Mexico;Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, 72570 Puebla, Pue., Mexico;Ingeniería en Biotecnología, Universidad Politécnica Metropolitana de Puebla, Popocatépetl s/n, Tres Cerritos, 72480 Puebla, Pue., Mexico;Instituto de Física, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, 72570 Puebla, Pue., Mexico;

关键词: crystal structure;    cyclobutane;    truxillic isomer;    truxinic isomer;    chalcone;   

DOI  :  10.1107/S2056989017015936

来源: DOAJ

【 摘 要 】

The condensation reaction of acetophenone (1-phenylethan-1-one) with 2-nitrobenzaldehyde in the molten state yielded the expected chalcone, (E)-3-(2-nitrophenyl)-1-phenylprop-2-en-1-one, and, unexpectedly, the title compound, C30H22N2O6, which results from the syn head-to-head [2 + 2] cycloaddition of the chalcone. The molecular 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 intermolecular π–π interactions for crystal stabilization. In the molecule, one nitro group is disordered over two positions, with occupancies for each part of 0.876 (7) and 0.127 (7).

【 授权许可】

Unknown