Potassium Sensing Calix[4]arene Crown Ethers

Jong Seung Kim; Won Ku Lee; Do Young Ra; Yong Ill Lee; Wang Kyu Choi; Kune Woo Lee; Won Zin Oh

doi:10.1006/mchj.1998.1630

Potassium Sensing Calix[4]arene Crown Ethers

Jong Seung Kim, Won Ku Lee, Do Young Ra, Yong Ill Lee, Wang Kyu Choi, Kune Woo Lee, Won Zin Oh

Research output: Contribution to journal › Article › peer-review

22 Citations (Scopus)

Abstract

1,3-Alternate calix[4]arene crown-5 (1) and corresponding biscrown-5 (2) were synthesized and the complexation behavior with alkali metal ions examined. For both 1 and 2, potassium ion was selectively extracted from aqueous phase into organic phase over other alkali metal ions based on two phase extraction experiment. The complexation ratio between calix[4]arene biscrown-5 (2), in which two crown cavities connect to the calix[4]arene framework by 1,3-alternate fashion and potassium metal ion is found to 1:1 by proton NMR spectroscopy and extraction equilibria. Association constants (log K_a) for 1 and 2 were determined to give 2.51 and 3.49, respectively.

Original language	English
Pages (from-to)	464-471
Number of pages	8
Journal	Microchemical Journal
Volume	59
Issue number	3
DOIs	https://doi.org/10.1006/mchj.1998.1630
Publication status	Published - 1998 Jul
Externally published	Yes

Bibliographical note

Funding Information:
This research was fully supported by the Korea Atomic Energy Research Institute in Taejon, Korea.

ASJC Scopus subject areas

Analytical Chemistry
Spectroscopy

Access to Document

10.1006/mchj.1998.1630

Cite this

@article{8179a5494a7f4d54bdacf1445a3e7a0a,

title = "Potassium Sensing Calix[4]arene Crown Ethers",

abstract = "1,3-Alternate calix[4]arene crown-5 (1) and corresponding biscrown-5 (2) were synthesized and the complexation behavior with alkali metal ions examined. For both 1 and 2, potassium ion was selectively extracted from aqueous phase into organic phase over other alkali metal ions based on two phase extraction experiment. The complexation ratio between calix[4]arene biscrown-5 (2), in which two crown cavities connect to the calix[4]arene framework by 1,3-alternate fashion and potassium metal ion is found to 1:1 by proton NMR spectroscopy and extraction equilibria. Association constants (log Ka) for 1 and 2 were determined to give 2.51 and 3.49, respectively.",

author = "Kim, {Jong Seung} and Lee, {Won Ku} and Ra, {Do Young} and Lee, {Yong Ill} and Choi, {Wang Kyu} and Lee, {Kune Woo} and Oh, {Won Zin}",

note = "Funding Information: This research was fully supported by the Korea Atomic Energy Research Institute in Taejon, Korea.",

year = "1998",

month = jul,

doi = "10.1006/mchj.1998.1630",

language = "English",

volume = "59",

pages = "464--471",

journal = "Microchemical Journal",

issn = "0026-265X",

publisher = "Elsevier Inc.",

number = "3",

}

TY - JOUR

T1 - Potassium Sensing Calix[4]arene Crown Ethers

AU - Kim, Jong Seung

AU - Lee, Won Ku

AU - Ra, Do Young

AU - Lee, Yong Ill

AU - Choi, Wang Kyu

AU - Lee, Kune Woo

AU - Oh, Won Zin

N1 - Funding Information: This research was fully supported by the Korea Atomic Energy Research Institute in Taejon, Korea.

PY - 1998/7

Y1 - 1998/7

N2 - 1,3-Alternate calix[4]arene crown-5 (1) and corresponding biscrown-5 (2) were synthesized and the complexation behavior with alkali metal ions examined. For both 1 and 2, potassium ion was selectively extracted from aqueous phase into organic phase over other alkali metal ions based on two phase extraction experiment. The complexation ratio between calix[4]arene biscrown-5 (2), in which two crown cavities connect to the calix[4]arene framework by 1,3-alternate fashion and potassium metal ion is found to 1:1 by proton NMR spectroscopy and extraction equilibria. Association constants (log Ka) for 1 and 2 were determined to give 2.51 and 3.49, respectively.

AB - 1,3-Alternate calix[4]arene crown-5 (1) and corresponding biscrown-5 (2) were synthesized and the complexation behavior with alkali metal ions examined. For both 1 and 2, potassium ion was selectively extracted from aqueous phase into organic phase over other alkali metal ions based on two phase extraction experiment. The complexation ratio between calix[4]arene biscrown-5 (2), in which two crown cavities connect to the calix[4]arene framework by 1,3-alternate fashion and potassium metal ion is found to 1:1 by proton NMR spectroscopy and extraction equilibria. Association constants (log Ka) for 1 and 2 were determined to give 2.51 and 3.49, respectively.

UR - http://www.scopus.com/inward/record.url?scp=0347336308&partnerID=8YFLogxK

U2 - 10.1006/mchj.1998.1630

DO - 10.1006/mchj.1998.1630

M3 - Article

AN - SCOPUS:0347336308

SN - 0026-265X

VL - 59

SP - 464

EP - 471

JO - Microchemical Journal

JF - Microchemical Journal

IS - 3

ER -

Potassium Sensing Calix[4]arene Crown Ethers

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this