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Biradha K, Nangia A, Desiraju GR, Carrell CJ, Carrell HL
C-H center dot center dot center dot O Hydrogen bonded multi- point recognition in molecular assemblies of dibenzylidene ketones and 1,3,5-trinitrobenzenes
Journal of Materials Chemistry (1997) 7:1111-1122.
Dibenzylideneacetone 1a, 2,5-dibenzylidenecyclopentanone 1b, 2,6-dibenzylidenecyclohexanone 1c and 2,5- dibenzylidenecyclopent-3-enone 1d form crystalline stoichiometric complexes with 1,3,5-trinitrobenzene 2a, picryl chloride 1b and picric acid 2c. The structures of these complexes are mediated by multi-point C-H ... O hydrogen bonds. Some of these patterns of molecular recognition also contain stronger O-H ... O hydrogen bonds. The C-H ... O hydrogen bonds within these multi-point supramolecular synthons are generally shorter and more linear than the other C-H ... O hydrogen bonds found in these complexes.
Publication Date: 1997-07-01.
Last updated on Tuesday, July 07, 2020