Hydrophobic interactions in the formation of a complex between a polycationic water-soluble oxacalix[4]arene and a neutral aromatic guest

被引：10
|
作者：
Manganaro, Nadia [1 ]
Lando, Gabriele [1 ]
Pisagatti, Ilenia [1 ]
Notti, Anna [1 ]
Pappalardo, Sebastiano [2 ]
Parisi, Melchiorre F. [1 ]
Gattuso, Giuseppe [1 ]
机构：
[1] Univ Messina, Dipartimento Sci Chim Biol Farmaceut & Ambientali, Messina, Italy
[2] Univ Catania, Dipartimento Sci Chim, Catania, Italy
来源：
SUPRAMOLECULAR CHEMISTRY | 2016年 / 28卷 / 5-6期
关键词：
Oxacalix[4]arene; polycyclic aromatic hydrocarbon; heteroatom-bridged calixarene; hydrophobic interactions; polycation; ANION-PI INTERACTIONS; MOLECULAR RECOGNITION; RECEPTORS; CHEMISTRY; OXACALIXARENES; 1,3-ALTERNATE; ASSEMBLIES; TWEEZERS; VESICLES; BASES;
D O I：
10.1080/10610278.2015.1123811
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Polycationic oxacalix[4]arene 1 center dot 4HCl was found to be able to recognise, in water, the neutral pi-rich aromatic guest 2,7-dihydroxynaphthalene, despite earlier studies indicating that the binding cleft of the oxacalixarene is pi rich in nature. H-1 NMR titrations at different pH values demonstrate that the tricationic receptor 1 center dot 3H(+) displays the highest affinity towards DHN. According to a combination of NMR data and semiempirical (PM6) calculations, hydrophobic interactions play a prominent role in the formation of the complex.
引用
收藏
页码：493 / 498
页数：6
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