Dithia-Crown-Annelated Tetrathiafulvalene Disulfides: Synthesis, Electrochemistry, Self-Assembled Films, and Metal Ion Recognition
摘要:
The synthesis and electrochemistry of a series of tetrathiafulvalene (TTF) and dithia-crown-TTF derivatives attached with one or two disulfide group(s) 7a-f are reported. The self-assembled monolayers (SAMs) of these TTF disulfides on gold were prepared and characterized by reflection-absorption infrared spectroscopy. The SAMs are extremely stable under a wide variety of conditions and over extended periods of time and show remarkable electrochemical stability upon repeated potential scans. SAMs of the crown-TTF disulfides 7c,d,f can recognize alkali metal ions, and the process can be monitored following the electrochemical potential shift of the surface-confined TTF group.
The synthesis and electrochemistry of a series of tetrathiafulvalene (TTF) and dithia-crown-TTF derivatives attached with one or two disulfide group(s) 7a-f are reported. The self-assembled monolayers (SAMs) of these TTF disulfides on gold were prepared and characterized by reflection-absorption infrared spectroscopy. The SAMs are extremely stable under a wide variety of conditions and over extended periods of time and show remarkable electrochemical stability upon repeated potential scans. SAMs of the crown-TTF disulfides 7c,d,f can recognize alkali metal ions, and the process can be monitored following the electrochemical potential shift of the surface-confined TTF group.
New Crown Annelated Tetrathiafulvalenes: Synthesis, Electrochemistry, Self-Assembly of Thiol Derivatives, and Metal Cation Recognition
作者:Adrian J. Moore、Leonid M. Goldenberg、Martin R. Bryce、Michael C. Petty、Janet Moloney、Judith A. K. Howard、Malcolm J. Joyce、Simon N. Port
DOI:10.1021/jo000936q
日期:2000.12.1
acetonitrile has been monitored by a positive shift in the first oxidation potential of the TTFunit (maximum DeltaE(1)(1/2) = 80 mV for Ag(+)). We also report the X-raycrystalstructure of TTF-crown derivative 21 bearing two hydroxymethyl substituents, synthesized during the course of this work. The structure is characterized by infinite chains of molecules linked by strong intrachain hydrogen bonds