H-1 AND C-13 NUCLEAR-MAGNETIC-RESONANCE RELAXATION-TIME STUDIES OF IONOPHORIC CALIXARENE ESTERS

被引：57

作者：

YAMADA, A

MURASE, T

KIKUKAWA, K

ARIMURA, T

SHINKAI, S

机构：

[1] KYUSHU UNIV,FAC ENGN,DEPT ORGAN SYNTH,FUKUOKA 812,JAPAN

[2] KINKI UNIV,FAC ENGN,DEPT IND CHEM,IIZUKA 820,JAPAN

来源：

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2 | 1991年 / 05期

关键词：

D O I：

10.1039/p29910000793

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

H-1 and C-13 NMR relaxation times (T1) of ethoxycarbonylmethyl derivatives of p-t-butylcalix[n]arenes have been determined at 90 MHz and 36-degrees-C in [H-2(8)]THF. It was found that these calixarenes feature a 'seasaw motion' around the ArCH2Ar linkage as a central support and that this molecular motion is largely suppressed through complexation with Na+.

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页码：793 / 797

页数：5

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