98506-68-4Relevant academic research and scientific papers
HIGHLY LITHIUM-SELECTIVE CROWN ETHER DYES FOR EXTRACTION PHOTOMETRY
Kimura, Keiichi,Tanaka, Mutsuo,Kitazawa, Sadaya,Shono, Toshiyuki
, p. 1239 - 1240 (1985)
Lipophilic 14-crown-4 derivatives bearing a chromogen such as nitrophenol and azophenol residues prove to be excellent extraction-photometric reagents for lithium ion.The lithium selectivities are extremely high, the extraction equilibrium constants for l
Synthesis and Cation-Extraction Study of Lithium-Selective Chromogenic 14-Crown-4 Derivatives
Kimura, Keiichi,Tanaka, Mutsuo,Iketani, Shin-ichi,Shono, Toshiyuki
, p. 836 - 844 (2007/10/02)
Various proton-dissociable chromogenic crown ethers have been synthesized, which possess a 14-crown-4 ring and a nitrophenol or azophenol chromophore.Proton-dissociation of the chromogenic crown ethers and extraction equilibria between the crown ether dic
Novel Lithium-selective Ionophores bearing an Easily Ionizable Moiety
Kimura, Keiichi,Sakamoto, Hidefumi,Kitazawa, Sadaya,Shono, Toshiyuki
, p. 669 - 670 (2007/10/02)
Lipophilic 14-crown-4 derivatives incorporating a nitrophenol substituent are excellent lithium ionophores for proton-driven cation transport, in which extremely high selectivity ratios of lithium over sodium are realized.
