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5-Methyl-spiro-[indoline-3,7'-[6H,7H,8H]pyrano[3,2-c:5,6-c']di[1]benzopyran]-2,6',8'-trione chloroform hemisolvate.

ABSTRACT: In the title compound, C(27)H(15)NO(6)·0.5CHCl(3), 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)°]. Supra-molecular layers in the ac plane are formed in the crystal structure whereby inversion-related mol-ecules are connected by N-H?O hydrogen bonds. These are further linked by C-H?O inter-actions, forming a supra-molecular layer in the ac plane. Disordered CHCl(3) solvent in the structure was modelled with the SQUEEZE routine in PLATON [Spek (2009 ?). Acta Cryst. D65, 148-155].

SUBMITTER: Almansour AI 

PROVIDER: S-EPMC3344131 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature

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5-Methyl-spiro-[indoline-3,7'-[6H,7H,8H]pyrano[3,2-c:5,6-c']di[1]benzopyran]-2,6',8'-trione chloroform hemisolvate.

Almansour Abdulrahman I AI   Kumar Raju Suresh RS   Arumugam Natarajan N   Vishnupriya R R   Suresh J J  

Acta crystallographica. Section E, Structure reports online 20120328 Pt 4

In the title compound, C(27)H(15)NO(6)·0.5CHCl(3), 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)°]. Supra-molecular layers in the ac plane are formed in the crystal structure whereby inversion-related mol-ecules are connected by N-H⋯O hydrogen bonds. These are further linked by C-H⋯O inter-act  ...[more]

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