A New Conformation of a Water Hexamer Chain and its Reversible Formation/Removal in the Host Channel by Gas-Solid Reaction

A new type of cyclic water hexamer chain was found to occupy the host channel of a supramolecule, formulated as [Zn(bdc)en·3(H 2 O)] n (1) [H 2 bdc=1,3-benzenedicarboxylic acid; en=ethylenediamine] and characterized by X-ray crystallography. As each water molecule was only involved in hydrogen bondi...

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Bibliographic Details
Published in:Supramolecular chemistry 2005-06, Vol.17 (4), p.291-296
Main Authors: Jiang, Ya-Qi, Xie, Zhao-Xiong
Format: Article
Language:English
Subjects:
Gas-solid reaction
Hydrogen bond
Water cluster
X-ray structure
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Summary:A new type of cyclic water hexamer chain was found to occupy the host channel of a supramolecule, formulated as [Zn(bdc)en·3(H 2 O)] n (1) [H 2 bdc=1,3-benzenedicarboxylic acid; en=ethylenediamine] and characterized by X-ray crystallography. As each water molecule was only involved in hydrogen bonding, facile removal of the lattice water was anticipated. The hydrogen-bonded water chain was completely removed by heating 1 at 96°C, forming the dehydrated solid [Zn(bdc)en] n (2). Interestingly, complex 1 can be regenerated in water vapor by a gas-solid reaction.
ISSN:1061-0278
1029-0478
DOI:10.1080/10610270500067616