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. 2009 Dec 12;66(Pt 1):o130.
doi: 10.1107/S1600536809052295.

2,3-Bis(4-ethoxy-phen-yl)quinoxaline

Ping-Ping Ye  1 , Cai-Li Zhang, Zhi-Qiang Du
Affiliations

2,3-Bis(4-ethoxy-phen-yl)quinoxaline

Ping-Ping Ye et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, C(24)H(22)N(2)O(2), was prepared by condensation of 1,2-bis-(4-ethoxy-phen-yl)ethane-1,2-dione and 1,2-diamino-benzene. The asymmetric unit contains one half-mol-ecule, close to a twofold axis. The plane of the quinoxaline ring is twisted with respect to the planes of the two ethoxy-phenyl ring systems, exhibiting dihedral angles of 39.95 (9)°. The crystal packing is dominated by weak C-H⋯π inter-actions. No classical hydrogen bonds or stacking inter-actions are observed.

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Figures

Fig. 1.
Fig. 1.
The molecular structure of the title molecule, with 40% probability displacement ellipsoids. Atoms labeled with _2 are generated by symmetry 1 - x, y, 1/2 - z.
See this image and copyright information in PMC

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