Bis(monoazacrown ether)s: Effects of bridge length and ring size on stability and selectivity in alkali ion sandwich complex formation

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Title:Bis(monoazacrown ether)s: Effects of bridge length and ring size on stability and selectivity in alkali ion sandwich complex formation
Creators:
Holý, Petr
Koudelka, Juraj
Bělohradský, Martin
Stibor, Ivan
Závada, Jiří
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 56, 7, pp. 1482-1488

Abstract

Sodium, potassium, rubidium and caesium ion complex formation was investigated in two homologous series of bis(azacrown ether)s <i>Ia-Ic</i> and <i>IIa-IIc</i>. Three complementary bis(azacrown ether)s series <i>IIIa-IIIc, IVa-IVc</i> and <i>Va-Vc</i> were employed for a more detailed study of sodium complexation. Very pronounced effects of bridge length as well as macroring size were found in the investigated series and interpreted mainly in terms of various proclivity of individual ligands and alkali ions to sandwich complex formation. Remarkably high selectivities in alkali ion formation were noted for the shortest bridge ligands <i>Ia</i> and <i>Ib</i>, the former preferring strongly sodium and the latter potassium complex formation.

Title:Bis(monoazacrown ether)s: Effects of bridge length and ring size on stability and selectivity in alkali ion sandwich complex formation
Creators:
Holý, Petr
Koudelka, Juraj
Bělohradský, Martin
Stibor, Ivan
Závada, Jiří
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:56
Number:7
Page Range:pp. 1482-1488
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19911482UNSPECIFIED
ID Code:5070
Item Type:Article
Deposited On:22 Feb 2010 11:29
Last Modified:22 Feb 2010 10:30

Citation

Holý, Petr; Koudelka, Juraj; Bělohradský, Martin; Stibor, Ivan; Závada, Jiří (1991) Bis(monoazacrown ether)s: Effects of bridge length and ring size on stability and selectivity in alkali ion sandwich complex formation. Collection of Czechoslovak Chemical Communications, 56 (7). pp. 1482-1488. ISSN 0010-0765

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