用于催化开/关控制的纳米开关高速网络。
A high-speed network of nanoswitches for on/off control of catalysis.
作者信息
Gaikwad Sudhakar, Pramanik Susnata, De Soumen, Schmittel Michael
机构信息
Center of Micro and Nanochemistry and Engineering, Organische Chemie I, Universität Siegen, Adolf-Reichwein-Str. 2, D-57068 Siegen, Germany.
出版信息
Dalton Trans. 2018 Feb 6;47(6):1786-1790. doi: 10.1039/c7dt04695b.
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.
通信催化协议的净态 I 由纳米开关 [Cu(1)] 和 2 以 1:1 的混合物定义。在开关 [Cu(1)] 的二茂铁单元发生单电子氧化时，会释放出铜 (i) 离子，这些离子在迁移后会在 4 分钟内将纳米开关 2 切换为 [Cu(2)]（净态 II）。通过将 1+ 还原为 1，净态 I 在 1 分钟内完全重置。在 4-硝基苯甲醛、丙二酸二乙酯和哌啶（催化剂）存在的情况下运行此氧化还原触发的切换协议，可以使催化的 Knoevenagel 加成从开启切换到关闭，然后再切换回开启。
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