Chromogenic lithium cryptahemispheraplexes for determination of sodium in aqueous solutions

Three new lithium cryptahemispheraplexes for selective complexation of sodium in aqueous solutions were synthesized. Combining diaza-12-crown-4 or diaza-14-crown-4 with the rigid trianisyl concave produced hosts with two different cavity sizes. These compounds, having the [1.1] cavity, incorporate 2...

Full description

Saved in:
Bibliographic Details
Published in:Analytica chimica acta 1992-06, Vol.263 (1), p.159-167
Main Authors: Czech, Bronislaw P., Chapoteau, Eddy, Chimenti, Margaret Z., Zazulak, Wolodymyr, Gebauer, Carl R., Kumar, Anand
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Cryptahemispheraplexes
Exact sciences and technology
Lithium complexes
Sodium
Spectrometric and optical methods
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Three new lithium cryptahemispheraplexes for selective complexation of sodium in aqueous solutions were synthesized. Combining diaza-12-crown-4 or diaza-14-crown-4 with the rigid trianisyl concave produced hosts with two different cavity sizes. These compounds, having the [1.1] cavity, incorporate 2,4-dinitro-6-(trifluoromethyl)anilino ( 2 and 5) and 2,6-dinitro-4-(trifluoromethyl)anilino ( 4) chromophoric groups for generating a chromogenic and kinetic response to sodium ion. For comparison, the end product of sodium complexation with compound 2 (cryptahemispheraplex 3) was isolated and characterized.
ISSN:0003-2670
1873-4324
DOI:10.1016/0003-2670(92)85439-D