Abstract
In the title compound, C27H15NO6·0.5CHCl3, the central pyran ring and both the benzopyran systems are planar, with the dihedral angle between the outer rings being 3.24 (6)°. The indolin-2-one system is in a perpendicular configuration with respect to the pyran ring [dihedral angle = 87.58 (2)°]. Supramolecular layers in the ac plane are formed in the crystal structure whereby inversion-related molecules are connected by N—H⋯O hydrogen bonds. These are further linked by C—H⋯O interactions, forming a supramolecular layer in the ac plane. Disordered CHCl3 solvent in the structure was modelled with the SQUEEZE routine in PLATON [Spek (2009 ▶). Acta Cryst. D65, 148–155].
Highlights
In the title compound, C27H15NO60.5CHCl3, the central pyran ring and both the benzopyran systems are planar, with the dihedral angle between the outer rings being 3.24 (6)
The indolin-2-one system is in a perpendicular configuration with respect to the pyran ring [dihedral angle = 87.58 (2) ]
Supramolecular layers in the ac plane are formed in the crystal structure whereby inversion-related molecules are connected by N—H O hydrogen bonds
Summary
5-Methylspiro[indoline-3,70 -[6H,7H,8H]pyrano[3,2-c:5,6-c0 ]di[1]benzopyran]2,60 ,80 -trione chloroform hemisolvate.
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