394222-20-9Relevant academic research and scientific papers
The synthesis of diquinone and dihydroquinone derivatives of calix[4]arene and electrochemical characterization on Au(111) surface
Genorio, Bo?tjan
, p. 496 - 508 (2016/10/19)
Several new electroactive diquinone and dihydroquinone derivatives of calix[4]arene bearing anchor functional groups were designed, synthesized and characterized. A method for selective protection of the hydroquinone-OH groups with trimethylsilyl groups (TMS) either on lower-rim or on upper-rim was developed. Four selected molecules - with sulfide anchor groups and carboxylic anchor groups - were adsorbed onto Au(111) single crystal surface using ex-situ and insitu self-assembly methods. Adsorbed molecules were then electrochemically probed with cyclic voltammetry. All adsorbed molecules showed redox response which changed during cycling. After conditioning CVs stabilized and showed two distinct current peaks for all molecules. Synthesized and electrochemically probed molecules are of interest to: Li-ion batteries (as cathode materials and overcharge protection), beyond Li-ion batteries and redox-flow batteries.
Synthesis of biscalix[4]arene with enhanced binding ability to a cationic guest
Araki, Koji,Watanabe, Tomokazu,Oda, Monoru,Hayashida, Hiromi,Yasutake, Mikio,Shinmyozu, Teruo
, p. 7465 - 7468 (2007/10/03)
The biscalix[4]arene showed remarkably enhanced inclusion ability for the N-methylpyridinium ion due to the increasing π-basicity of the benzene rings, which interact with the guest in an edge-to-face manner, in calix[4]arene skeletons.
