Short SO···CO Contacts Associate Diastereomers of 2,4(6)-Di- O -benzoyl-6(4)- O -[(1 S )-10-camphorsulfonyl]- m yo -inositol 1,3,5-Orthoformate in Their Inclusion Complexes
2005; American Chemical Society; Volume: 5; Issue: 3 Linguagem: Inglês
10.1021/cg049621k
ISSN1528-7505
AutoresK. Manoj, Kana M. Sureshan, Rajesh G. Gonnade, M.M. Bhadbhade, Mysore S. Shashidhar,
Tópico(s)Coordination Chemistry and Organometallics
ResumoDiastereomers of 2,4(6)-di-O-benzoyl-6(4)-O-[(1S)-10-camphorsulfonyl]-myo-inositol 1,3,5-orthoformate are linked via short SO···CO contacts ranging from 2.890 to 3.140 Å (sum of the van der Waals radii of O and C atoms 3.22 Å) in all the inclusion complexes formed with organic guest solvents having a C2 symmetry. Although a search for SO···CO interactions in the CSD showed a sizable number of structures, this communication recognizes its significance for the first time in the formation of molecular assemblies. In all the crystals in the present study except the solvent-free form, the SO bond points almost perpendicularly to the Csp2 atom of the CO group. This was also the most frequently observed geometrical approach in CSD analysis. The solvent-free form shows dimer formation via C−H···O interaction, which has longer SO···CO contacts.
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