The role of the solvation shell decomposition of alkali metal ions in their selective complexation by resorcinarene and its cavitand

Yin Li, Zsolt Csók, L. Kollár, Koichi Iwata, Erzsébet Szász, S. Kunsági-Máté

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

2-Methylresorcinarene and its methylene-bridged cavitand derivative as host compounds were investigated in selective complexation of alkali metal ions as guests in methanol media by photoluminescence measurements. These host molecules possess either flexible (2-methylresorcinarene) or rigid (cavitand) molecular skeleton. The Benesi-Hildebrand method and the van't Hoff theory have been applied to determine the stability constants and the thermodynamic parameters, respectively. Considerable interactions between 2-methylresorcinarene and Li + or Na + ions have been observed while the rigid cavitand derivative can interact only with K + or Cs + ions. Neither the complexes of 2-methylresorcinarene with K + or Cs + nor those of the cavitand derivative with Li + or Na + ions are stable at room temperature in methanol media. Quantum-chemical investigations justified that only solvated Li + and Na + ions can form stable complexes with 2-methylresorcinarene while unsolvated K + and Cs + ions form stable complexes with the methylene-bridged cavitand. These results highlight that the stability of the guest solvation shell and its size could play a key role in the selectivity behaviour of host molecules.

Original languageEnglish
Pages (from-to)374-378
Number of pages5
JournalSupramolecular Chemistry
Volume24
Issue number6
DOIs
Publication statusPublished - Jun 1 2012

Fingerprint

Alkali Metals
Solvation
Complexation
Metal ions
Ions
Decomposition
Derivatives
Methanol
Molecules
Photoluminescence
cavitand
resorcinarene
Thermodynamics

Keywords

  • alkali metal ions
  • cavitand
  • resorcinarene
  • solvation shell

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

The role of the solvation shell decomposition of alkali metal ions in their selective complexation by resorcinarene and its cavitand. / Li, Yin; Csók, Zsolt; Kollár, L.; Iwata, Koichi; Szász, Erzsébet; Kunsági-Máté, S.

In: Supramolecular Chemistry, Vol. 24, No. 6, 01.06.2012, p. 374-378.

Research output: Contribution to journalArticle

@article{479be8c4dbdc4e9998acb34cb52273b6,
title = "The role of the solvation shell decomposition of alkali metal ions in their selective complexation by resorcinarene and its cavitand",
abstract = "2-Methylresorcinarene and its methylene-bridged cavitand derivative as host compounds were investigated in selective complexation of alkali metal ions as guests in methanol media by photoluminescence measurements. These host molecules possess either flexible (2-methylresorcinarene) or rigid (cavitand) molecular skeleton. The Benesi-Hildebrand method and the van't Hoff theory have been applied to determine the stability constants and the thermodynamic parameters, respectively. Considerable interactions between 2-methylresorcinarene and Li + or Na + ions have been observed while the rigid cavitand derivative can interact only with K + or Cs + ions. Neither the complexes of 2-methylresorcinarene with K + or Cs + nor those of the cavitand derivative with Li + or Na + ions are stable at room temperature in methanol media. Quantum-chemical investigations justified that only solvated Li + and Na + ions can form stable complexes with 2-methylresorcinarene while unsolvated K + and Cs + ions form stable complexes with the methylene-bridged cavitand. These results highlight that the stability of the guest solvation shell and its size could play a key role in the selectivity behaviour of host molecules.",
keywords = "alkali metal ions, cavitand, resorcinarene, solvation shell",
author = "Yin Li and Zsolt Cs{\'o}k and L. Koll{\'a}r and Koichi Iwata and Erzs{\'e}bet Sz{\'a}sz and S. Kuns{\'a}gi-M{\'a}t{\'e}",
year = "2012",
month = "6",
day = "1",
doi = "10.1080/10610278.2012.678358",
language = "English",
volume = "24",
pages = "374--378",
journal = "Supramolecular Chemistry",
issn = "1061-0278",
publisher = "Taylor and Francis Ltd.",
number = "6",

}

TY - JOUR

T1 - The role of the solvation shell decomposition of alkali metal ions in their selective complexation by resorcinarene and its cavitand

AU - Li, Yin

AU - Csók, Zsolt

AU - Kollár, L.

AU - Iwata, Koichi

AU - Szász, Erzsébet

AU - Kunsági-Máté, S.

PY - 2012/6/1

Y1 - 2012/6/1

N2 - 2-Methylresorcinarene and its methylene-bridged cavitand derivative as host compounds were investigated in selective complexation of alkali metal ions as guests in methanol media by photoluminescence measurements. These host molecules possess either flexible (2-methylresorcinarene) or rigid (cavitand) molecular skeleton. The Benesi-Hildebrand method and the van't Hoff theory have been applied to determine the stability constants and the thermodynamic parameters, respectively. Considerable interactions between 2-methylresorcinarene and Li + or Na + ions have been observed while the rigid cavitand derivative can interact only with K + or Cs + ions. Neither the complexes of 2-methylresorcinarene with K + or Cs + nor those of the cavitand derivative with Li + or Na + ions are stable at room temperature in methanol media. Quantum-chemical investigations justified that only solvated Li + and Na + ions can form stable complexes with 2-methylresorcinarene while unsolvated K + and Cs + ions form stable complexes with the methylene-bridged cavitand. These results highlight that the stability of the guest solvation shell and its size could play a key role in the selectivity behaviour of host molecules.

AB - 2-Methylresorcinarene and its methylene-bridged cavitand derivative as host compounds were investigated in selective complexation of alkali metal ions as guests in methanol media by photoluminescence measurements. These host molecules possess either flexible (2-methylresorcinarene) or rigid (cavitand) molecular skeleton. The Benesi-Hildebrand method and the van't Hoff theory have been applied to determine the stability constants and the thermodynamic parameters, respectively. Considerable interactions between 2-methylresorcinarene and Li + or Na + ions have been observed while the rigid cavitand derivative can interact only with K + or Cs + ions. Neither the complexes of 2-methylresorcinarene with K + or Cs + nor those of the cavitand derivative with Li + or Na + ions are stable at room temperature in methanol media. Quantum-chemical investigations justified that only solvated Li + and Na + ions can form stable complexes with 2-methylresorcinarene while unsolvated K + and Cs + ions form stable complexes with the methylene-bridged cavitand. These results highlight that the stability of the guest solvation shell and its size could play a key role in the selectivity behaviour of host molecules.

KW - alkali metal ions

KW - cavitand

KW - resorcinarene

KW - solvation shell

UR - http://www.scopus.com/inward/record.url?scp=84862673662&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84862673662&partnerID=8YFLogxK

U2 - 10.1080/10610278.2012.678358

DO - 10.1080/10610278.2012.678358

M3 - Article

VL - 24

SP - 374

EP - 378

JO - Supramolecular Chemistry

JF - Supramolecular Chemistry

SN - 1061-0278

IS - 6

ER -