Building multi-component crystals from cations and co-crystals: the use of chaperones

Ternary crystalline complexes consisting of both salts and ionic co-crystals have been created through the crystallisation of the binary co-crystal 3,5-dinitrobenzoic acid-4-(dimethylamino)benzoic acid with group 1 or ammonium cations. The size and charge density of the cation can be used to adjust...

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Bibliographic Details
Published in:CrystEngComm 2013-01, Vol.15 (12), p.2241-2250
Main Authors: Bukenya, Shamim, Munshi, Tasnim, Scowen, Ian J., Skyner, Rachael, Whitaker, Darren A., Seaton, Colin C.
Format: Article
Language:English
Subjects:
Adjustment
Binding sites
Cations
Charge density
Crown ethers
Crystal structure
Crystallization
Crystals
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Summary:Ternary crystalline complexes consisting of both salts and ionic co-crystals have been created through the crystallisation of the binary co-crystal 3,5-dinitrobenzoic acid-4-(dimethylamino)benzoic acid with group 1 or ammonium cations. The size and charge density of the cation can be used to adjust the protonation level and local geometry of the acid pair. The selectivity and coordination geometry of the chaperone cation may be further adjusted by the inclusion of a crown ether to reduce the number and location of potential binding sites.
ISSN:1466-8033
1466-8033
DOI:10.1039/C2CE26498F