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2,3-Dimethyl-6-nitro-quinoxaline

2,3-Dimethyl-6-nitro-quinoxaline

Raza Murad Ghalib, Rokiah Hashim, Sayed Hasan Mehdi, Jia Hao Goh, Hoong-Kun Fun

Acta Crystallogr Sect E Struct Rep Online. 2010 Jun 26;66(Pt 7):o1830-1.

PMID: 21588035

Abstract:

The asymmetric unit of the title quinoxaline compound, C(10)H(9)N(3)O(2), contains two crystallographically independent mol-ecules (A and B). The quinoxaline ring systems are essentially planar, with maximum deviations of 0.006 (1) and 0.017 (1) Å, respectively, for mol-ecules A and B. In mol-ecule A, the dihedral angle formed between the quinoxaline ring system and nitro group is 10.94 (3)° [6.31 (13)° for mol-ecule B]. In the crystal, mol-ecules are linked into chains propagating along [001]: one forms zigzag chains linked by C-H⋯O hydrogen bonds, whilst the other forms ladder-like chains by way of C-H⋯N and C-H⋯O hydrogen bonds. The packing is further consolidated by weak π-π inter-actions [range of centroid-centroid distances = 3.5895 (7)-3.6324 (7) Å].

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP91190	Quinoxaline		91-19-0	Price

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