K. Ono, Ken-ichi Tsukamoto, M. Tomura
May 14, 2008
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The title compound, C26H22O4, is a derivative of 1,4-bis(phenylethynyl)benzene substituted by four methoxy groups at the terminal benzene rings. The asymmetric unit consists of two half-molecules; one centrosymmetric molecule is planar but the other is non-planar, with dihedral angles of 67.7 (1)° between the central benzene ring and the terminal benzene rings. In the crystal structure, molecules form a zigzag molecular network due to π–π [the interplanar and centroid–centroid distances between the benzene rings are 3.50 (1) and 3.57 (1) Å, respectively] and C—H⋯π interactions (2.75 Å). Introduction of the four methoxy groups results in the supramolecular architecture.