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Published on: November 26, 2019
A high-speed network of nanoswitches for on/off control of catalysis
Sudhakar Gaikwad1, Susnata Pramanik, Soumen De
1Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Str. 2, D-57068 Siegen, Germany. schmittel@chemie.uni-siegen.de.
Abstract:
NetState I of the communication-catalysis protocol is defined by a 1 : 1 mixture of the nanoswitches [Cu(1)]+ and 2. Upon one-electron oxidation at the ferrocenyl unit of the switch [Cu(1)]+, copper(i) ions are released that after translocation toggle nanoswitch 2 → [Cu(2)]+ (NetState II) within 4 min. NetState I was fully reset within 1 min by reduction of 1+ → 1. Running this redox-triggered switching protocol in the presence of 4-nitrobenzaldehyde, diethyl malonate and piperidine (catalyst) allows toggling of a catalyzed Knoevenagel addition from ON to OFF and back to ON.
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