Issue 11, 2008
From the journal:

CrystEngComm

Guest inducing p-sulfonatocalix[4]arene into three-dimensional capsule architecture and a mixed A–B double layer framework†

Guoli Zheng,ab   Feng Zhang,c   Yinyan Liab  and  Hongjie Zhang*ab  

* Corresponding authors

a State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, P. R. China
E-mail: hongjie@ciac.jl.cn
Fax: +86-431-85698041
Tel: +86-431-85262127

b Graduate School of the Chinese Academy of Sciences, Beijing, P. R. China

c Lanzhou Petrochemical Research Center Petrochina, Lanzhou, P. R. China

Abstract

The reactions of sodium p-sulfonatocalix[4]arene (Na5L) and terbium/europium(III) chloride in the presence of pyrazine-N,N′-dioxide (PNNO) in aqueous solutions gave the crystalline complexes 1 and 2. Both structures contain molecular capsules of p-sulfonatocalix[4]arene with PNNO as guest molecules in the cavity of the calix[4]arenes. The molecular capsules are connected through sodium and terbium (or europium) centers forming a three-dimensional framework. The yellow crystals from an aqueous solution containing Na5L and lanthanum(III) chloride reacted with PNNO in aqueous solutions, giving crystals of complex 3. Compound 3 is a special mixed A–B type layer framework of p-sulfonatocalix[4]arene. The structure of compound 3 is made up of two types of bilayered p-sulfonatocalix[4]arene with opposite charges. The two types of layers (in presence or absence of sodium centers) alternate with each other forming a mixed A–B type double bi-layer framework which is uncommon in the layer structure of p-sulfonatocalix[4]arene.

Graphical abstract: Guest inducing p-sulfonatocalix[4]arene into three-dimensional capsule architecture and a mixed A–B double layer framework

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Article information

DOI
https://doi.org/10.1039/B805628E
Article type
Paper
Submitted
03 Apr 2008
Accepted
04 Aug 2008
First published
01 Sep 2008

CrystEngComm, 2008,10, 1560-1564

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Guest inducing p-sulfonatocalix[4]arene into three-dimensional capsule architecture and a mixed A–B double layer framework

G. Zheng, F. Zhang, Y. Li and H. Zhang, CrystEngComm, 2008, 10, 1560 DOI: 10.1039/B805628E

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