Diversity of interstrand π— stacking motifs in the double helices of pyridinedicarboxamide oligomers
| Autor: | P. Guionneau, V. Maurizot, Jean-Michel Léger, I. Huc |
|---|---|
| Přispěvatelé: | Chimie supramoléculaire biomimétique et bio-organique - Institut Européen de Chimie et Biologie, Université Bordeaux Segalen - Bordeaux 2-Université Sciences et Technologies - Bordeaux 1, Laboratoire de Pharmacochimie, Université Bordeaux Segalen - Bordeaux 2-EA4138, Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB) |
| Rok vydání: | 2004 |
| Předmět: |
Stacking of aromatic fragments
010405 organic chemistry Stereochemistry Hydrogen bond Stacking Solid-state Supramolecular chemistry [CHIM.MATE]Chemical Sciences/Material chemistry General Chemistry Crystal structure 010402 general chemistry 01 natural sciences Hydrogen bonds 0104 chemical sciences chemistry.chemical_compound Crystallography Conformational analysis Monomer chemistry Duplex (building) Helical structures |
| Zdroj: | Russian Chemical Bulletin Russian Chemical Bulletin, Springer Verlag, 2004, 53 (7), pp.1572-1576. ⟨10.1023/B:RUCB.0000046256.78082.8d⟩ |
| ISSN: | 1066-5285 1573-9171 |
| DOI: | 10.1023/b:rucb.0000046256.78082.8d |
| Popis: | Winding of oligoamide strands of 2,6-diaminopyridine and 2,6-pyridinedicarboxylic acid into molecular duplexes is illustrated by two new crystal structures of double helical dimers. The relative positions of the two strands within the double helices in these two structures are different; they also differ from the structures reported previously. Unlike the single helical structure of the monomeric strands, the double helical motif is not highly stable in the solid state. This implies that the interactions that lead to duplex formation are not directional. It suggests that the two strands have a significant motional freedom in the duplex. |
| Databáze: | OpenAIRE |
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