Issue 21, 2002
From the journal:

Chemical Communications

Lack of evidence of dilution history-dependence upon solute aggregation in water. A nuclear magnetic resonance determination of self-diffusion coefficients

Fernando Hallwass,*a   M. Engelsbergb  and  A. M. Simasa  

* Corresponding authors

a Departamento de Química Fundamental, Universidade Federal de Pernambuco, Recife, Brazil
E-mail: hallwass@npd.ufpe.br; simas@npd.ufpe.br
Fax: -55-81 3271 8442
Tel: 55-81 3271 8440

b Departamento de Física, Universidade Federal de Pernambuco, Recife, Brazil
E-mail: mario@df.ufpe.br
Fax: 55-81 3271
Tel: 55-81 3271 8450

Abstract

NMR-PFG (pulsed field gradient) diffusion coefficient measurements of aqueous solutions of sodium chloride, sodium azide, 18C6 crown ether, β-cyclodextrin and of a mixture of sodium azide and 18C6 crown ether, did not reveal any solution history-dependence, indicating that the unexpected solute aggregation upon dilution, reported by Samal and Geckeler (Chem. Commun., 2001, 2224), is inconsistent with these as well as other experimental results.

Graphical abstract: Lack of evidence of dilution history-dependence upon solute aggregation in water. A nuclear magnetic resonance determination of self-diffusion coefficients

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Article information

DOI
https://doi.org/10.1039/B207135E
Article type
Communication
Submitted
23 Jul 2002
Accepted
17 Sep 2002
First published
30 Sep 2002

Chem. Commun., 2002, 2530-2531

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Lack of evidence of dilution history-dependence upon solute aggregation in water. A nuclear magnetic resonance determination of self-diffusion coefficients

F. Hallwass, M. Engelsberg and A. M. Simas, Chem. Commun., 2002, 2530 DOI: 10.1039/B207135E

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