A Helicate-Based Three-State Molecular Switch

Angewandte Chemie
Xiaofei ChenMarkus Albrecht

Abstract

The control of structural transformations triggered by external signals is important for the development of novel functional devices. In the present study, it is demonstrated that helicates can be designed to structurally respond to the presence of different counterions and to adopt either a compressed or an expanded structure. Reversible switching is not only possible between those two states, furthermore, the twist of the aggregate also can be controlled. Thus, three out of four possible states of a helicate (expanded/left-handed, expanded/right-handed, compressed/left-handed) based on an enantiomerically pure ester bridged dicatecholate ligand are specifically addressed by introduction, exchange, or removal of countercations. This approach is used to reversibly switch between the different states or to successively address them.

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Citations

Nov 6, 2018·Chemistry : a European Journal·Markus AlbrechtDavid Van Craen
Feb 19, 2019·Chemistry : a European Journal·Aaron D W KennedyJonathon E Beves
Jun 20, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·David Van CraenMarkus Albrecht
Jun 4, 2020·Chemistry : a European Journal·Erica GiraldiKay Severin
Jan 4, 2020·Angewandte Chemie·Chang-Bo HuangPaolo Samorì
Nov 3, 2020·Chemistry, an Asian Journal·Masayuki MorieTakeharu Haino
Feb 23, 2021·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Isha MishraMalaichamy Sathiyendiran
Mar 11, 2021·Journal of the American Chemical Society·Naoki OusakaEiji Yashima
Jun 15, 2021·Dalton Transactions : an International Journal of Inorganic Chemistry·Christian MevissenMarkus Albrecht
Sep 19, 2018·The Journal of Organic Chemistry·Rosaria SchettiniFrancesco De Riccardis
Nov 13, 2021·Chemistry : a European Journal·Matthieu Scarpi-LuttenauerPierre Mobian

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