Issue 8, 2021

Structural influence on stimuli-responsive halogen-bonded luminescent supramolecular polymers from heteroditopic isomers

Abstract

Supramolecular polymers have emerged as attractive systems for the construction of responsive and adaptive smart materials. In this context, halogen (X)-bonding is relatively underexplored. The present work describes an X-bonded supramolecular polymer from a rationally designed AB-type heteroditopic self-complementary crystallizable building block of 5-(2,3,5,6-tetrafluoro-4-iodophenoxy)quinoline that produces discrete nanorods in methylcyclohexane (MCH) with blue emission. A structural isomer with variation in the position of the X-bond donor shows a stark contrast in the crystalline packing and solution-phase self-assembly, which was attributed to the difference in the strength and directionality of the X-bonding interaction. A structurally close control molecule, in which the X-bond donating iodine atom is replaced with fluorine, failed to produce any defined nanostructure in MCH, suggesting that the molecular assembly is predominantly driven by the X-bonding interaction.

Graphical abstract: Structural influence on stimuli-responsive halogen-bonded luminescent supramolecular polymers from heteroditopic isomers

Supplementary files

Article information

Article type
Communication
Submitted
22 jan 2021
Accepted
26 jan 2021
First published
27 jan 2021

CrystEngComm, 2021,23, 1695-1699

Structural influence on stimuli-responsive halogen-bonded luminescent supramolecular polymers from heteroditopic isomers

A. Jamadar, C. K. Karan, S. Biswas and A. Das, CrystEngComm, 2021, 23, 1695 DOI: 10.1039/D1CE00101A

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