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Real-time optical and electronic sensing with a ?-amino enone linked, triazine-containing 2D covalent organic framework.


ABSTRACT: Fully-aromatic, two-dimensional covalent organic frameworks (2D COFs) are hailed as candidates for electronic and optical devices, yet to-date few applications emerged that make genuine use of their rational, predictive design principles and permanent pore structure. Here, we present a 2D COF made up of chemoresistant ?-amino enone bridges and Lewis-basic triazine moieties that exhibits a dramatic real-time response in the visible spectrum and an increase in bulk conductivity by two orders of magnitude to a chemical trigger - corrosive HCl vapours. The optical and electronic response is fully reversible using a chemical switch (NH3 vapours) or physical triggers (temperature or vacuum). These findings demonstrate a useful application of fully-aromatic 2D COFs as real-time responsive chemosensors and switches.

SUBMITTER: Kulkarni R 

PROVIDER: S-EPMC6642192 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Real-time optical and electronic sensing with a β-amino enone linked, triazine-containing 2D covalent organic framework.

Kulkarni Ranjit R   Noda Yu Y   Kumar Barange Deepak D   Kochergin Yaroslav S YS   Lyu Pengbo P   Balcarova Barbora B   Nachtigall Petr P   Bojdys Michael J MJ  

Nature communications 20190719 1


Fully-aromatic, two-dimensional covalent organic frameworks (2D COFs) are hailed as candidates for electronic and optical devices, yet to-date few applications emerged that make genuine use of their rational, predictive design principles and permanent pore structure. Here, we present a 2D COF made up of chemoresistant β-amino enone bridges and Lewis-basic triazine moieties that exhibits a dramatic real-time response in the visible spectrum and an increase in bulk conductivity by two orders of ma  ...[more]

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