Electrochemical behavior of calix[4]arenediquinones and their cation binding properties
β Scribed by Taek Dong Chung; Dongsuk Choi; Sun Kil Kang; Sang Kwon Lee; Suk-Kyu Chang; Hasuck Kim
- Publisher
- Elsevier
- Year
- 1995
- Tongue
- English
- Weight
- 698 KB
- Volume
- 396
- Category
- Article
- ISSN
- 1572-6657
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## Abstract Several calix[4]arenediquinones 3aβe having quinone moieties in opposite positions (diametrical) have been synthesized by oxidation of 25,27βdialkoxycalix[4]arenes 2aβe with Tl(NO~3~)~3~ Β· 3H~2~O in organic solvents. The conformational properties of these compounds have been established
Synthesis and Cation Binding Properties of Triester Calix[4]arenes and Calix[4]quinones. -The triester methyl calix[4]arene shows the highest extraction of sodium ion. -(NAM, K.
Three new polymers containing pendant calix[4]crown-4 units have been synthesized via radical initiated reactions involving a vinylic monomer 7 (5,7,11,ethoxy]-27-methoxycalix[4]arene-crown-4) and with styrene. A five atom spacer group was incorporated between the bulky calixarene core and the acryl
Two calix[4] arene derivatives (5 and 8) and their telomers are synthesized to estimate selective extraction of alkali and transition metal cations from the aqueous to the organic phase (chloroform). Compound 5 shows selectivity toward Hg 2Ο© . Compound 8 and telomers 6 and 9 are not selective but a