Social Isomers of Picolines in a Small Space. Issue 50 (12th November 2013)

• Record Type: Journal Article
• Authors: Ajami, Dariush; Theodorakopoulos, Giannoula; Petsalakis, Ioannis D.; Rebek, Julius
• Is Part Of: Chemistry. Volume 19:Issue 50(2013)
• Page Start: 17092
• Page End: 17096
• Publication Date: 2013-11-12
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201303117
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Encapsulation complexes permit the observation of molecules under conditions of limited motion. Inside capsules, molecular encounters are prolonged, prearranged, and protected from the medium, in contrast to the short‐lived and random encounters that occur in bulk solution. Herein, the interaction of α‐, β‐, and γ‐picolines in a cylindrical capsule is described. Two picolines were taken up, and NMR spectra indicated dynamic combinations of various social isomers. The stabilities of the complexes are interpreted through computational methods. The shape of the space in the capsule allowed the alignment of molecules and revealed delicate, atom‐to‐atom interactions and attractive forces that elude observation in dilute solution. These weak forces were amplified in the isolated small space of the capsule.</p> </abstract>