Bidirectional and colorimetric recognition of sodium and potassium ions.
Host 1 based on the phenolphthalein skeleton and two crown ether moieties demonstrated opposite behaviors toward sodium and potassium cations caused by bidirectional complexation. [reaction: see text]
Tsubaki
Kazunori
K
Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan. tsubaki@fos.kuicr.kyoto-u.ac.jp
Tanima
Daisuke
D
Kuroda
Yasuhisa
Y
Fuji
Kaoru
K
Kawabata
Takeo
T
D003124:Colorimetry; D043844:Crown Ethers / Q000737:chemistry; D007202:Indicators and Reagents; D020113:Phenolphthalein; D011188:Potassium / Q000737:chemistry*; D012964:Sodium / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013696:Temperature
D043844:Crown Ethers; D007202:Indicators and Reagents; D020113:Phenolphthalein; D012964:Sodium; D011188:Potassium