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

0508958 - ÚOCHB 2020 RIV GB eng J - Journal Article
Kulkarni, Ranjit - Noda, Yu - Barange, Deepak Kumar - Kochergin, Yaroslav S. - Lyu, P. - Balcarová, Barbora - Nachtigall, P. - Bojdys, Michael J.
Real-time optical and electronic sensing with a β-amino enone linked, triazine-containing 2D covalent organic framework.
Nature Communications. Roč. 10, Jul 19 (2019), č. článku 3228. E-ISSN 2041-1723
Institutional support: RVO:61388963
Keywords : adsorption * polymer
OECD category: Physical chemistry
Impact factor: 12.121, year: 2019
Method of publishing: Open access
https://www.nature.com/articles/s41467-019-11264-z

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 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.
Permanent Link: http://hdl.handle.net/11104/0299771