Guest inclusion properties of a novel cage molecule composed of two calix[4]arenes

Authors
Araki, K Hayashida, H
Citation
K. Araki et H. Hayashida, Guest inclusion properties of a novel cage molecule composed of two calix[4]arenes, TETRAHEDR L, 41(8), 2000, pp. 1209-1213
Citations number
13
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
41
Issue
8
Year of publication
2000
Pages
1209 - 1213
Database
ISI
SICI code
0040-4039(20000219)41:8<1209:GIPOAN>2.0.ZU;2-2
Abstract
The biscalix[4]arene was synthesized by connecting the upper rims with two spacers. The inclusion ability and the selectivity for various quaternary a mmonium ions were enhanced due to the cooperative action of the cation-pi i nteraction in the two bowl-shaped calix[4]arenes. The very slow dynamic pro cess during complexation and decomplexation and the separation of the catio nic guest and the counter anion were caused by encapsulation of the biscali x[4]arene. (C) 2000 Elsevier Science Ltd. All rights reserved.