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aDepartment of Organic and Polymer Materials Chemistry, Tokyo University of Agriculture & Technology, 2-24-16 Naka-machi, Koganei, Tokyo 184-8588, Japan
Correspondence e-mail: aokamoto@cc.tuat.ac.jp
In the title compound, C36H28O4, the two 2-naphthoyl groups at the 1- and 8-positions of the central 2,7-diethoxynaphthalene ring system are aligned almost antiparallel and make a dihedral angle of 48.35 (5)°. The dihedral angles between the central 2,7-diethoxynaphthalene ring system and the terminal naphthalene ring systems are 77.64 (4) and 73.73 (4)°. In the crystal, molecules are linked into chains along the a-axis direction by dual C-H
O interactions between naphthoyl groups.
For electrophilic aroylation of naphthalene derivatives, see: Okamoto & Yonezawa (2009
); Okamoto et al. (2011
). For the structures of closely related compounds, see: Nakaema et al. (2008
); Tsumuki et al. (2011
); Sasagawa et al. (2012
); Isogai et al. (2013
); Yoshiwaka et al. (2013
).
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Data collection: PROCESS-AUTO (Rigaku, 1998
); cell refinement: PROCESS-AUTO; data reduction: CrystalStructure (Rigaku, 2010
); program(s) used to solve structure: SIR2004 (Burla et al., 2005
); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008
); molecular graphics: ORTEPIII (Burnett & Johnson, 1996
); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: RZ5043 ).
The authors express their gratitude to Professor Keiichi Noguchi, Instrumentation Analysis Center, Tokyo University of Agriculture & Technology, for technical advice. This work was partially supported by an Iron and Steel Institute of Japan (ISIJ) Research Promotion Grant.
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![[details]](../../../../../../j/graphics/details.gif)
Burnett, M. N. & Johnson, C. K. (1996). ORTEPIII. Report ORNL-6895. Oak Ridge National Laboratory. Tennessee, USA.
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Isogai, A., Tsumuki, T., Murohashi, S., Okamoto, A. & Yonezawa, N. (2013). Acta Cryst. E69, o71.
![[details]](../../../../../../e/graphics/details.gif)
Nakaema, K., Watanabe, S., Okamoto, A., Noguchi, K. & Yonezawa, N. (2008). Acta Cryst. E64, o807.
![[details]](../../../../../../e/graphics/details.gif)
Okamoto, A., Mitsui, R. & Yonezawa, N. (2011). Chem. Lett. 40, 1283-1284.
![[ChemPort]](../../../../../../logos/chemportborder.gif)
Okamoto, A. & Yonezawa, N. (2009). Chem. Lett. 38, 914-915.
![[ChemPort]](../../../../../../logos/chemportborder.gif)
Rigaku (1998). PROCESS-AUTO. Rigaku Corporation, Tokyo, Japan.
Rigaku (2010). CrystalStructure. Rigaku Corporation, Tokyo, Japan.
Sasagawa, K., Hijikata, D., Sakamoto, R., Okamoto, A. & Yonezawa, N. (2012). Acta Cryst. E68, o3348.
![[details]](../../../../../../e/graphics/details.gif)
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
![[details]](../../../../../../a/graphics/details.gif)
Tsumuki, T., Hijikata, D., Okamoto, A., Oike, H. & Yonezawa, N. (2011). Acta Cryst. E67, o2095.
![[details]](../../../../../../e/graphics/details.gif)
Yoshiwaka, S., Hijikata, D., Sasagawa, K., Okamoto, A. & Yonezawa, N. (2013). Acta Cryst. E69, o242.
![[details]](../../../../../../e/graphics/details.gif)