Acta Crystallographica Section C

Crystal Structure Communications

Volume 58, Part 3 (March 2002)

Acta Cryst. (2002). C58, o164-o167 [doi:10.1107/S0108270102000896]

Three tetrahydroisoquinolinedione derivatives

A. Subbiah Pandi, V. Rajakannan, D. Velmurugan, M. Parvez, M.-J. Kim, A. Senthilvelan and S. Narasinga Rao

Abstract: N-(2-Chlorobenzyl)-1,2,3,4-tetrahydroisoquinoline-1,3-dione, C₁₆H₁₂ClNO₂, crystallizes in P2₁/n with three crystallographically independent molecules in the asymmetric unit, which differ slightly in conformation, N-(2-bromo-4-methylphenyl)-1,2,3,4-tetrahydroisoquinoline-1,3-dione, C₁₆H₁₂BrNO₂, crystallizes in P2₁/n with one molecule in the asymmetric unit andN-(2,3-dichlorophenyl)-1,2,3,4-tetrahydroisoquinoline-1,3-dione, C₁₅H₉Cl₂NO₂, crystallizes in P2₁/c with one molecule in the asymmetric unit. In all three structures, the heterocyclic rings adopt approximately planar conformations. The pyridine rings are orthogonal to the substituted phenyl rings. In all three structures, the crystal packing is stabilized by intermolecular C-HO hydrogen bonds.

Formula: C₁₆H₁₂ClNO₂, C₁₆H₁₂BrNO₂ and C₁₅H₉Cl₂NO₂

Online 20 February 2002


	Structure factor file (CIF format) (352.3 kbytes) Contains datablock I

	Structure factor file (CIF format) (116.6 kbytes) Contains datablock II

	Structure factor file (CIF format) (110.1 kbytes) Contains datablock III

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