SELECTIVE ALKALI AND ALKALINE-EARTH CATION COMPLEXATION BY CALIXARENE AMIDES

被引:0
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作者
ARNAUDNEU, F
SCHWINGWEILL, MJ
ZIAT, K
CREMIN, S
HARRIS, SJ
MCKERVEY, MA
机构
[1] NATL UNIV IRELAND UNIV COLL CORK,DEPT CHEM,CORK,IRELAND
[2] LOCTITE IRELAND LTD,RES & DEV,DUBLIN 24,IRELAND
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中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The complexing abilities of two calix[4]arenes with ligating amide groups in the cone conformation have been determined by extraction and stability constants measurements. The cations studied were the alkalis and alkaline-earths. The results show strong complexation of both series with a preference for Na+ in the former and in the latter for Ca2+ in extraction and Sr2+ in stability constant for one of the amide derivatives. The Ca2+/Mg2+ complexation selectivity (greater-than-or-equal-to 7.8 log units) exhibited by one of the amides ligands is the highest recorded for a neutral ligand receptor.
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页码:33 / 37
页数:5
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