Abstract
A new type of cyclic water hexamer chain was found to occupy the host channel of a supramolecule, formulated as [Zn(bdc)en·3(H2O)] n (1) [H2bdc=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.
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