Activity Coefficients and Selectivity Values of Cu++, Zn++ and Ca++ Ions Adsorbed in the Nitella flexilis L. Cell wall during Triangular Ion Exchanges
The triangular exchanges Cu++−Zn++−Ca ++ have been performed in the Nitella flexilis cell wall. The selectivity sequence for the exchange of the cations is Cu++ » Zn++ > Ca++. The presence of two types of exchange site has been confirmed. Possibly due to the Jahn-Teller effect, the cupric ion for...
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1982
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fthighwire:oai:open-archive.highwire.org:jexbot:33/5/847 2023-05-15T17:23:48+02:00 Activity Coefficients and Selectivity Values of Cu++, Zn++ and Ca++ Ions Adsorbed in the Nitella flexilis L. Cell wall during Triangular Ion Exchanges CUSTEM, P. VAN GILLET, C. 1982-10-01 00:00:00.0 text/html http://jxb.oxfordjournals.org/cgi/content/short/33/5/847 https://doi.org/10.1093/jxb/33.5.847 en eng Oxford University Press http://jxb.oxfordjournals.org/cgi/content/short/33/5/847 http://dx.doi.org/10.1093/jxb/33.5.847 Copyright (C) 1982, Society for Experimental Biology Articles TEXT 1982 fthighwire https://doi.org/10.1093/jxb/33.5.847 2016-11-16T16:57:45Z The triangular exchanges Cu++−Zn++−Ca ++ have been performed in the Nitella flexilis cell wall. The selectivity sequence for the exchange of the cations is Cu++ » Zn++ > Ca++. The presence of two types of exchange site has been confirmed. Possibly due to the Jahn-Teller effect, the cupric ion forms inner-sphere coordination with functional groups of the sites. This results in lower rotional mobilities and lower activity coefficients of the curpric ions immobilized close to the negative charges in the Stern layer. At higher equivalent fractions, the cupric ions in the diffuse layer are more mobile and have activity coefficients close to one. Text Nitella flexilis HighWire Press (Stanford University) Journal of Experimental Botany 33 5 847 854 |
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HighWire Press (Stanford University) |
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English |
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Articles |
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Articles CUSTEM, P. VAN GILLET, C. Activity Coefficients and Selectivity Values of Cu++, Zn++ and Ca++ Ions Adsorbed in the Nitella flexilis L. Cell wall during Triangular Ion Exchanges |
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Articles |
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The triangular exchanges Cu++−Zn++−Ca ++ have been performed in the Nitella flexilis cell wall. The selectivity sequence for the exchange of the cations is Cu++ » Zn++ > Ca++. The presence of two types of exchange site has been confirmed. Possibly due to the Jahn-Teller effect, the cupric ion forms inner-sphere coordination with functional groups of the sites. This results in lower rotional mobilities and lower activity coefficients of the curpric ions immobilized close to the negative charges in the Stern layer. At higher equivalent fractions, the cupric ions in the diffuse layer are more mobile and have activity coefficients close to one. |
format |
Text |
author |
CUSTEM, P. VAN GILLET, C. |
author_facet |
CUSTEM, P. VAN GILLET, C. |
author_sort |
CUSTEM, P. VAN |
title |
Activity Coefficients and Selectivity Values of Cu++, Zn++ and Ca++ Ions Adsorbed in the Nitella flexilis L. Cell wall during Triangular Ion Exchanges |
title_short |
Activity Coefficients and Selectivity Values of Cu++, Zn++ and Ca++ Ions Adsorbed in the Nitella flexilis L. Cell wall during Triangular Ion Exchanges |
title_full |
Activity Coefficients and Selectivity Values of Cu++, Zn++ and Ca++ Ions Adsorbed in the Nitella flexilis L. Cell wall during Triangular Ion Exchanges |
title_fullStr |
Activity Coefficients and Selectivity Values of Cu++, Zn++ and Ca++ Ions Adsorbed in the Nitella flexilis L. Cell wall during Triangular Ion Exchanges |
title_full_unstemmed |
Activity Coefficients and Selectivity Values of Cu++, Zn++ and Ca++ Ions Adsorbed in the Nitella flexilis L. Cell wall during Triangular Ion Exchanges |
title_sort |
activity coefficients and selectivity values of cu++, zn++ and ca++ ions adsorbed in the nitella flexilis l. cell wall during triangular ion exchanges |
publisher |
Oxford University Press |
publishDate |
1982 |
url |
http://jxb.oxfordjournals.org/cgi/content/short/33/5/847 https://doi.org/10.1093/jxb/33.5.847 |
genre |
Nitella flexilis |
genre_facet |
Nitella flexilis |
op_relation |
http://jxb.oxfordjournals.org/cgi/content/short/33/5/847 http://dx.doi.org/10.1093/jxb/33.5.847 |
op_rights |
Copyright (C) 1982, Society for Experimental Biology |
op_doi |
https://doi.org/10.1093/jxb/33.5.847 |
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Journal of Experimental Botany |
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33 |
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5 |
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847 |
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854 |
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1766114266534903808 |