Neutral isocyanide-templated assembly of pillar[5]arene [2] and [3]pseudorotaxanes
Korawit Khamphaijun, Phitawat Namnouad, Andrew Docker, Araya Ruengsuk, Jonggol Tantirungrotechai, Raúl Díaz‐Torres, David J. Harding, Thanthapatra Bunchuay
Abstract
C-NMR spectroscopy and single-crystal X-ray diffraction, it is demonstrated that pillar[5]arenes are capable of encapsulating a series of alkyl diisocyanides wherein either [2]- or [3]pseudorotaxanes can be formed by varying the alkyl chain length. Moreover, electron-deficient aryl isocyanides, are demonstrated to form inclusion complexes within the cavities of pillar[5]arenes stabilised by multiple C-H⋯π interactions.
Topics & Concepts
AlkylIsocyanidePillarChemistryCrystallographyAffinitiesArylNuclear magnetic resonance spectroscopyProton NMRStereochemistryCarbon-13 NMRPolymer chemistryOrganic chemistryStructural engineeringEngineeringSupramolecular Chemistry and ComplexesMetal-Organic Frameworks: Synthesis and ApplicationsSupramolecular Self-Assembly in Materials