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Different modes of anion response cause circulatory phase transfer of a coordination cage with controlled directionality

DOI: 10.1002/anie.201906644 DOI Help

Authors: Nozomi Mihara (University of Cambridge) , Tanya K. Ronson (University of Cambridge) , Jonathan Nitschke (University of Cambridge)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Angewandte Chemie International Edition

State: Published (Approved)
Published: July 2019
Diamond Proposal Number(s): 15768

Abstract: Controlled directional transport of molecules is essential to complex natural systems, exemplified by cellular transport up to organismal circulatory systems. In contrast to these natural systems, synthetic systems that enable transport of molecules between several spatial locations on the macroscopic scale, when external stimuli are applied, remain to be explored. Here we report the transfer of a supramolecular cage with controlled directionality between three phases, based on the cage that responds reversibly in two distinct ways to different anions. Notably, circulatory phase transfer of the cage was demonstrated based on a system where the three layers of solvent are arranged within a circular track. The direction of circulation between solvent phases depended upon the order of addition of anions.

Journal Keywords: boranes; cage compounds; Phase Transfer; self-assembly; Stimuli-responsiveness

Subject Areas: Chemistry

Instruments: I19-Small Molecule Single Crystal Diffraction