Chloroform as solvent for the complex formation of alkaline salts with crown ethers and cryptands

Authors
Buschmann, HJ Wenz, G Schollmeyer, E
Citation
Hj. Buschmann et al., Chloroform as solvent for the complex formation of alkaline salts with crown ethers and cryptands, INORG CH C, 4(1), 2001, pp. 53-56
Citations number
15
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
INORGANIC CHEMISTRY COMMUNICATIONS
ISSN journal
13877003 → ACNP
Volume
4
Issue
1
Year of publication
2001
Pages
53 - 56
Database
ISI
SICI code
1387-7003(200101)4:1<53:CASFTC>2.0.ZU;2-#
Abstract
The complex formation between different crown ethers and the cryptand (2 2 2) with the ammonium and alkali ions was studied in chloroform as solvent u sing calorimetric titrations. From the reaction enthalpies for the complex formation with 18-crown-6 and the cryptand (2 2 2) as well as from competit ive reactions between both ligands no influence of ion pairs can be detecte d within the experimental error, Stability constants of the complexes forme d could only be obtained in case of the complex formation of Na+ with benzo -18-crown-6 and of Cs+ with most of the ligands. (C) 2001 Elsevier Science B.V. All rights reserved.