1H and 13C nuclear magnetic resonance relaxation-time studies of ionophoric calixarene esters

Akio Yamada, Tatsuya Murase, Kiyoshi Kikukawa, Takashi Arimura, Seiji Shinkai

Research output: Contribution to journalArticle

57 Citations (Scopus)

Abstract

1H and 13C NMR relaxation times (T1) of ethoxycarbonylmethyl derivatives of p-t-butylcalix[n]arenes have been determined at 90 MHz and 36 °C in [2H8]THF. It was found that these calixarenes feature a 'seesaw motion' around the ArCH2Ar linkage as a central support and that this molecular motion is largely suppressed through complexation with Na+.

Original languageEnglish
Pages (from-to)793-797
Number of pages5
JournalJournal of the Chemical Society, Perkin Transactions 2
Issue number5
Publication statusPublished - Dec 1 1991

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Calixarenes
Time and motion study
Complexation
Relaxation time
Esters
Nuclear magnetic resonance
Derivatives

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

Cite this

1H and 13C nuclear magnetic resonance relaxation-time studies of ionophoric calixarene esters. / Yamada, Akio; Murase, Tatsuya; Kikukawa, Kiyoshi; Arimura, Takashi; Shinkai, Seiji.

In: Journal of the Chemical Society, Perkin Transactions 2, No. 5, 01.12.1991, p. 793-797.

Research output: Contribution to journalArticle

Yamada, Akio ; Murase, Tatsuya ; Kikukawa, Kiyoshi ; Arimura, Takashi ; Shinkai, Seiji. / 1H and 13C nuclear magnetic resonance relaxation-time studies of ionophoric calixarene esters. In: Journal of the Chemical Society, Perkin Transactions 2. 1991 ; No. 5. pp. 793-797.
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