X-RAY CRYSTALLOGRAPHIC STUDIES OF A 1,3-ALTERNATE-CALIX[4]ARENE NA+ COMPLEX - IS THE CATION-PI INTERACTION OPERATIVE BETWEEN THE BENZENE RINGS AND NA+

被引：37

作者：

IKEDA, A

TSUZUKI, H

SHINKAI, S

机构：

[1] KYUSHU UNIV,FAC ENGN,DEPT CHEM SCI & TECHNOL,FUKUOKA 812,JAPAN

[2] KYUSHU UNIV,CTR ADV INSTRUMENTAL ANAL,KASUGA,FUKUOKA 816,JAPAN

来源：

TETRAHEDRON LETTERS | 1994年 / 35卷 / 45期

关键词：

D O I：

10.1016/S0040-4039(00)74422-4

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The structure of a 1,3-alternate-calix[4]arene.Na+ complex was determined by X-ray crystallography for the first time. It showed that two well-preorganized oxygen bases (OCH2C=O; groups) contribute to the Na+-binding whereas two pi-basic benzene rings, unlike those for the K+ complex, are not involved. The complex adopts a highly symmetrical structure, which is the origin of the facile ''Na+-tunneling'' across the 1,3-alternate-calix[4]arene cavity.

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页码：8417 / 8420

页数：4

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