Abstract
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.
Highlights
The dihedral angles between the central 2,7-diethoxynaphthalene ring system and the terminal naphthalene ring systems are 77.64 (4) and
Molecules are linked into chains along the a-axis direction by dual C—H O interactions between naphthoyl groups
We have reported the crystal structures of several 1,8-diaroylated naphthalene analogues exemplified by 1,8-dibenzoyl-2,7-dimethoxynaphthalene (Nakaema et al, 2008), [2,7-dimethoxy-8-(2-naphthoyl)naphthalen-1-yl](naphthalen-2-yl)methanone (Tsumuki et al, 2011), {2,7-dimethoxy-8-[4-(2-methylpropyl)benzoyl]naphthalen-1-yl}[4-(2-methylpropyl) phenyl]methanone (Sasagawa et al, 2012), (8-benzoyl-2,7-diethoxynaphthalen-1-yl)(phenyl)methanone (Isogai et al, 2013), and [8-(4-phenoxybenzoyl)-2,7-bis(propan-2-yloxy)naphthalen-1-yl](4-phenoxyphenyl) methanone (Yoshiwaka et al, 2013)
Summary
R factor = 0.036; wR factor = 0.097; data-to-parameter ratio = 13.5. 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. Molecules are linked into chains along the a-axis direction by dual C—H O interactions between naphthoyl groups
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