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Issue 5, 2008
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Ternary and quaternary co-crystals of 1,3-cis,5-cis-cyclohexanetricarboxylic acid and 4,4′-bipyridines

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Abstract

1,3cis,5cis-Cyclohexanetricarboxylic acid (H3CTA) was co-crystallized with 4,4′-bipyridine bases connected viamethylene and alkene chains to obtain ternary acid–base co-crystals, H3CTA·bipy1·bipy2. The hydrogen bond network and mode of interpenetration in co-crystal structures are discussed in relation to known (6,3) nets. The rectangular host container of composition H3CTA·bipy-eta·(bipy-bu)0.5 includes a variety of aromatic guest species in its 10 × 12 Å channels. The ternary and quaternary co-crystals are characterized by X-ray diffraction to analyze the hydrogen bonding and molecular packing. Whereas the acid–pyridine O–H⋯N hydrogen bond sustains reliable supramolecular aggregation in multi-component crystal structures, the change of bipyridine base connector imparts structural diversity in these supramolecular structures. A self-assembly model based on helix and chain sub-units of acid·bipy1 being connected via the bipy2 spacer to give hexagonal and square network structures is proposed.

Graphical abstract: Ternary and quaternary co-crystals of 1,3-cis,5-cis-cyclohexanetricarboxylic acid and 4,4′-bipyridines

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Publication details

The article was received on 08 Jan 2008, accepted on 11 Mar 2008 and first published on 26 Mar 2008


Article type: Paper
DOI: 10.1039/B800293B
Citation: New J. Chem., 2008,32, 800-807
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    Ternary and quaternary co-crystals of 1,3-cis,5-cis-cyclohexanetricarboxylic acid and 4,4′-bipyridines

    B. R. Bhogala and A. Nangia, New J. Chem., 2008, 32, 800
    DOI: 10.1039/B800293B

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