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Two closely related, and unexpected, quinolinone derivatives: a three-dimensional hydrogen-bonded framework structure and a hydrogen-bonded molecular ribbon ofR22(18) andR44(24) rings
- Source :
- Acta Crystallographica Section C Crystal Structure Communications. 68:o220-o225
- Publication Year :
- 2012
- Publisher :
- International Union of Crystallography (IUCr), 2012.
-
Abstract
- 1,5-Bis(4-chlorophenyl)-3-(2-oxo-1,2-dihydroquinolin-3-yl)pentane-1,5-dione, (Ia), and 1,5-bis(2-chlorophenyl)-3-(2-oxo-1,2-dihydroquinolin-3-yl)pentane-1,5-dione, (Ib), crystallize as an 84:16 mixture, 0.84C26H19Cl2NO3·0.16C26H19Cl2NO3, in the space groupI41/a, where the molecules of the two isomers occupy very similar sites in the unit cell. A combination of one N—H...O hydrogen bond and one C—H...O hydrogen bond links the molecules, regardless of isomeric form, into a single three-dimensional framework structure. The molecules of (9RS,10RS)-8,9-bis(4-chlorobenzyl)-10-(2-oxo-1,2-dihydroquinolin-3-yl)-5,6,9,10-tetrahydrophenanthridine, C36H22Cl2N2O4, (II), are linked by two hydrogen bonds, one each of the N—H...O and C—H...O types, into a molecular ribbon in which centrosymmetric rings ofR22(18) andR44(24) types alternate. The hydrogen-bonded ribbons enclose channels, which contain highly disordered solvent molecules.
Details
- ISSN :
- 01082701
- Volume :
- 68
- Database :
- OpenAIRE
- Journal :
- Acta Crystallographica Section C Crystal Structure Communications
- Accession number :
- edsair.doi.dedup.....d8b9bc6e7d03cd276d60e57b60eb00ae