0000000001300978
AUTHOR
Sanna Yliniemelä-sipari
Conformational properties and folding analysis of a series of seven oligoamide foldamers
33 crystal structures (11 unsolvated and 22 solvates) of a series of seven oligoamide foldamers were analysed. The crystal structures revealed that despite the structural and environmental differences the series of foldamers prefer only two general conformations, a protohelical @-conformation and a sigmoidal S-conformation. Both conformations also have preferred crystal packing motifs and solvate forming tendencies. Hydrogen bonding was found to be the most decisive factor in conformational preference, but steric properties, the type of the peripheral substituents, as well as solvent and aromatic interactions were also found to have an effect on the conformational details and crystal form. …
Folding Patterns in a Family of Oligoamide Foldamers
A series of small, unsymmetrical pyridine-2,6-dicarboxylamide oligoamide foldamers with varying lengths and substituents at the end groups were synthetized to study their conformational properties and folding patterns. The @-type folding pattern resembled the oxyanion-hole motifs of enzymes, but several alternative folding patterns could also be characterized. Computational studies revealed several alternative conformers of nearly equal stability. These folding patterns differed from each other in their intramolecular hydrogen-bonding patterns and aryl-aryl interactions. In the solid state, the foldamers adopted either the globular @-type fold or the more extended S-type conformers, which w…
CCDC 1436660: Experimental Crystal Structure Determination
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CCDC 1436663: Experimental Crystal Structure Determination
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CCDC 1438546: Experimental Crystal Structure Determination
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CCDC 1038219: Experimental Crystal Structure Determination
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CCDC 1038222: Experimental Crystal Structure Determination
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CCDC 1038221: Experimental Crystal Structure Determination
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CCDC 1436674: Experimental Crystal Structure Determination
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CCDC 1436667: Experimental Crystal Structure Determination
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CCDC 1436665: Experimental Crystal Structure Determination
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CCDC 1436670: Experimental Crystal Structure Determination
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CCDC 1038220: Experimental Crystal Structure Determination
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CCDC 1038217: Experimental Crystal Structure Determination
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CCDC 1436669: Experimental Crystal Structure Determination
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CCDC 1436668: Experimental Crystal Structure Determination
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CCDC 1436662: Experimental Crystal Structure Determination
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CCDC 1436673: Experimental Crystal Structure Determination
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CCDC 1038216: Experimental Crystal Structure Determination
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CCDC 1038223: Experimental Crystal Structure Determination
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CCDC 1436659: Experimental Crystal Structure Determination
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CCDC 1436672: Experimental Crystal Structure Determination
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CCDC 1436666: Experimental Crystal Structure Determination
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CCDC 1038215: Experimental Crystal Structure Determination
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CCDC 1038218: Experimental Crystal Structure Determination
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CCDC 1436664: Experimental Crystal Structure Determination
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CCDC 1436671: Experimental Crystal Structure Determination
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CCDC 1436661: Experimental Crystal Structure Determination
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