Synthesis, Self‐Assembled Monolayers and Alkaline Earth Metal Ion Recognition of p‐tert‐Butylcalix[4]arene Derivatives

摘要: The synthesis and self-assembled monolayer (SAM) formation of three conformational isomers p-tert-butylcalix[4]crown-6 derivatives 3a−3c one p-tert-butylcalix[4]arene derivative (3d) are reported. SAMs these compounds were prepared characterized by electrochemistry, reflection-absorption infrared spectroscopy (RAIRS) contact-angle measurements. recognition properties with metal cations systematically investigated using electrochemical techniques impedance spectroscopy. monolayers exhibit selective binding sensing abilities alkaline earth such as Ca2+ Ba2+ over alkali ions. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)