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Aramidocalix[4]arenes as new anion receptors
被引:27
|作者:
Troisi, Francesco
[1
]
Russo, Alessio
Gaeta, Carmine
[1
]
Bifulco, Giuseppe
[2
]
Neri, Placido
[1
]
机构:
[1] Univ Salerno, Dipartimento Chim, I-84084 Salerno, Italy
[2] Univ Salerno, Dipartimento Sci Farmaceut, I-84084 Salerno, Italy
关键词:
calixarenes;
aromatic amides;
anion recognition;
hydrogen bonds;
D O I:
10.1016/j.tetlet.2007.09.046
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Calix[4]arenes bearing aromatic amide (aramid) moieties at the upper rim display interesting recognition properties toward anions and in particular versus planar trigonal nitrate and Y-shaped benzoate. Molecular modeling and DFT calculations indicate that the high affinity displayed by aramidocalix[4]arenes 3 and 4 for nitrate anion is likely due to the planar arrangement of the NH groups, which form an unusual six-hydrogen-bond scheme with nitrate anion. (c) 2007 Elsevier Ltd. All rights reserved.
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页码:7986 / 7989
页数:4
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