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Issue 16, 2007

Reversible solid-state reaction between 18-Crown[6] and M[H2PO4] (M = K, Rb, Cs) and an investigation of the decomplexation process

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Abstract

On heating the hydrated complexes 18-Crown[6]·M[H2PO4xH2O (x = 2 for M = K, Rb; x = 1.5 for M = Cs), quantitatively prepared by mechanical mixing of crystalline 18-Crown[6] and M[H2PO4], to ca. 60 °C, water loss takes place, accompanied by the extrusion of the crown ether from the crystalline complex and followed by reconstruction of the inorganic phase M[H2PO4] (M = K, Rb, Cs); the resulting solid mixture reverts to 18-Crown[6]·M[H2PO4xH2O (x = 2 for M = K, Rb; x = 1.5 for M = Cs) upon grinding in air.

Graphical abstract: Reversible solid-state reaction between 18-Crown[6] and M[H2PO4] (M = K, Rb, Cs) and an investigation of the decomplexation process

Supplementary files

Article information


Submitted
13 Feb 2007
Accepted
09 Mar 2007
First published
19 Mar 2007

Chem. Commun., 2007, 1594-1596
Article type
Communication

Reversible solid-state reaction between 18-Crown[6] and M[H2PO4] (M = K, Rb, Cs) and an investigation of the decomplexation process

D. Braga, M. Polito, E. Dichiarante, K. Rubini and F. Grepioni, Chem. Commun., 2007, 1594 DOI: 10.1039/B702301D

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