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Issue 7, 2010
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Mechanochemical preparation of adducts (co-crystals and molecular salts) of 1,4-diazabicyclo-[2.2.2]-octane with aromatic polycarboxylic acids

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Abstract

Solid-state adducts (co-crystals and molecular salts) of 1,4-diazabicyclo-[2.2.2]-octane (DABCO) with aromatic polycarboxylic acids (isophthalic acid, isoH2, dinicotinic acid, dinH2 and dipicolinic acid, dipH2) were prepared in the solid state by grinding and kneading techniques, and fully characterized via X-ray diffraction. The polycarboxylic acids differ for the presence/absence and position of a nitrogen atom in the aromatic ring; the extent of proton transfer, from the carboxylic groups on the acids to the nitrogen atoms on DABCO, reflects the trend of solution acidity of the three polycarboxylic acids.

Graphical abstract: Mechanochemical preparation of adducts (co-crystals and molecular salts) of 1,4-diazabicyclo-[2.2.2]-octane with aromatic polycarboxylic acids

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Publication details

The article was received on 02 Nov 2009, accepted on 15 Jan 2010 and first published on 03 Feb 2010


Article type: Paper
DOI: 10.1039/B922915A
Citation: CrystEngComm, 2010,12, 2107-2112
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    Mechanochemical preparation of adducts (co-crystals and molecular salts) of 1,4-diazabicyclo-[2.2.2]-octane with aromatic polycarboxylic acids

    S. Marivel, D. Braga, F. Grepioni and G. I. Lampronti, CrystEngComm, 2010, 12, 2107
    DOI: 10.1039/B922915A

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