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1-Nitro-4-(4-nitro­phen­oxy)benzene: a second monoclinic polymorph

In the title compound, C(12)H(8)N(2)O(5), the aromatic rings are inclined to one another by 56.14 (7)°. The nitro groups are inclined by to the benzene rings to which they are attached by 3.86 (17) and 9.65 (15)°. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds, forming a three-dimensi...

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Detalles Bibliográficos
Autores principales: Naz, Mehwish, Akhter, Zareen, McKee, Vickie, Nadeem, Arif
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3885027/
https://www.ncbi.nlm.nih.gov/pubmed/24454202
http://dx.doi.org/10.1107/S1600536813029346
Descripción
Sumario:In the title compound, C(12)H(8)N(2)O(5), the aromatic rings are inclined to one another by 56.14 (7)°. The nitro groups are inclined by to the benzene rings to which they are attached by 3.86 (17) and 9.65 (15)°. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds, forming a three-dimensional structure. The title compound is a new monoclinic polymorph, crystallizing in space group P2(1)/c. The first polymorph crystallized in space group C2/c and the mol­ecule possesses twofold rotation symmetry. Two low-temperature structures of this polymorph (150 K and 100 K, respectively) have been reported [Meciarova et al. (2004). Private Communication (refcode IXOGAD). CCDC, Cambridge, England, and Dey & Desiraju (2005). Chem. Commun. pp. 2486–2488].