Journal article
Polymorphism and Pseudopolymorphism in the Triaroylbenzene Derivative 1,3,5-Tris(4-cyanobenzoyl)benzene
Crystal growth & design, Vol.4(6), pp.1217-1222
11/01/2004
DOI: 10.1021/cg049792p
Abstract
The triaroylbenzene derivative 1,3,5-tris(4-cyanobenzoyl)benzene exhibits the phenomenon of concomitant polymorphism. Two topologically isomeric solid-state networks, hexagonal and ladder, were obtained upon crystallization from acetone/water solution. In contrast, crystallization of the title compound from EtOAc, 3-pentanone, MeNO2, DMSO, acetone, and methyl chloroacetate produced isostructural pseudopolymorphic inclusion complexes. In all these six cases, the triaroylbenzene host molecule self-assembles in a 2D lamellar pattern via C−H···O and C−H···N hydrogen bonding with guest solvent molecules residing in interlayer channels. A clathrate of different morphology was obtained upon crystallization from nitroethane. In all seven inclusion adducts, bifurcated C−H···O hydrogen bonding between host donors and the guest acceptors was observed as a common feature. The network topologies in the polymorphic modifications of 1 are different from those observed in the structurally characterized inclusion complexes. Thus, C−H···X (X = N/O) hydrogen bonding appears to significantly influence supramolecular isomerism in this system.
Details
- Title: Subtitle
- Polymorphism and Pseudopolymorphism in the Triaroylbenzene Derivative 1,3,5-Tris(4-cyanobenzoyl)benzene
- Creators
- V. S. Senthil Kumar - Department of Chemistry & Biochemistry, University of Missouri-St. Louis, One University Boulevard, St. Louis, Missouri 63121-4499F. Christopher Pigge - Department of Chemistry & Biochemistry, University of Missouri-St. Louis, One University Boulevard, St. Louis, Missouri 63121-4499Nigam P Rath - Department of Chemistry & Biochemistry, University of Missouri-St. Louis, One University Boulevard, St. Louis, Missouri 63121-4499
- Resource Type
- Journal article
- Publication Details
- Crystal growth & design, Vol.4(6), pp.1217-1222
- DOI
- 10.1021/cg049792p
- ISSN
- 1528-7483
- eISSN
- 1528-7505
- Language
- English
- Date published
- 11/01/2004
- Academic Unit
- Chemistry; Radiology
- Record Identifier
- 9984216667902771
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