{2,7-Dieth-oxy-8-[(naphthalen-1-yl)carbon-yl]naph-thalen-1-yl}(naphthalen-1-yl)methanone

Abstract

In the title compound, C36H28O4, the 1-naphthoyl groups at the 1- and 8-positions of the central 2,7-dieth-oxy-naphthalene ring system are aligned almost anti-parallel and make a dihedral angle of 76.59 (4)°. The dihedral angles between the central 2,7-dieth-oxy-naphthalene ring system and the terminal naphthalene ring systems are 86.48 (4) and 83.97 (4)°. In the crystal, C-H⋯π inter-actions between the central naphthalene ring systems and the naphthoyl groups are observed along the a axis, with the mol-ecules forming a columnar structure. The columns are linked into chains parallel to the b axis by C-H⋯O inter-actions.

Fig. 1.

The molecular structure of the title compound, with displacement ellipsoids drawn at the 50% probability level.

Fig. 2.

The arrangement of the molecules in the crystal structure, viewed down the a axis.

Fig. 3.

A partial view of the crystal packing of the title compound, showing the intermolecular C—H···π interactions. Cg4 and Cg6 are centroid of the C16–C21 and C27–C32 (see Table 1 for details; symmetry codes: (i) 1 + x, y, z).

Fig. 4.

A partial view of the crystal packing of the title compound, showing the intermolecular C—H···O interactions (see Table 1 for details; symmetry codes: (ii) 1 - x, 2 - y, 2 - z; (iii) - x, - 1 - y, - 1 - z (iv); - x, 2 - y, 2 - z).