Ontology highlight
ABSTRACT:
SUBMITTER: Engle JM
PROVIDER: S-EPMC3216052 | biostudies-literature | 2011 Nov
REPOSITORIES: biostudies-literature
Crystal growth & design 20111101 11
The conformations of 2,6-bis(2-anilinoethynyl)pyridine-based urea receptors were studied by single crystal X-ray diffraction methods and revealed a rich conformational flexibility influenced by solvents. Whereas receptor L(1) in DMSO prefers an "S" conformation, receptor L(1) crystallizes in an "O" conformation from DMSO/CH(3)OH binary solvent system, and a "W" conformation in the ternary solvent mixture DMSO/toluene/1,4-dioxane. In the case of L(2), the molecule adopts an "S" conformation where ...[more]