Anion-Binding-Induced Electrochemical Signal Transduction in Ferrocenylimidazolium: Combined Electrochemical Experimental and Theoretical Investigation

作者：Weng, Tan-Qing; Huang, Yi-Fan; Xue, Lou-Sha; Cheng, Jie; Jin, Shan^*; Liu, Sheng-Hua; Wu, De-Yin; Chen, George Z.

来源：Molecules, 2019, 24(2): 238.

DOI：10.3390/molecules24020238

• electrostatic interactions
• electron transfer
• anion recognition
• ferrocene alkylmethylimidazolium

Five ferrocene alkymethylimidazolium cations 1a-1d and 2 with different alkyl spacer lengths were reinvestigated using voltammetry and density functional theory (DFT) calculations. The voltammetric responses of ligand 2 toward various anions are described in detail. An interesting and unprecedented finding from both experimental and theoretical studies is that coupled electron and intramolecular anion (F-) transfer may be present in these molecules. In addition, it was also observed that, in these studied molecules, the electrostatic attraction interaction toward F- would effectively vanish beyond 1 nm, which was previously reported only for cations.

• 出版日期2019-1-2
• 单位厦门大学; 华中师范大学