From a Binary to a Quaternary Cocrystal: An Unusual Supramolecular Synthon

Paul, Mithun and Desiraju, Gautam R (2019) From a Binary to a Quaternary Cocrystal: An Unusual Supramolecular Synthon. In: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION .

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Abstract

Formation of a stoichiometric quaternary cocrystal consisting of resorcinol (RES), tetramethylpyrazine (TMP), phenazine (PHE) and pyrene (PYR) is described. A closed tetrameric resorcinol-heterocycle synthon, unusual in that it has two different linker bases rather than just one, is observed in this four-component solid. The tetrameric synthon is formed by two RES molecules and the two pyridine bases TMP and PHE. The stoichiometric quaternary cocrystal grows in an epitaxial fashion on the surfaces of a RES.PHE binary cocrystal which is initially obtained from the mother liquor. By indexing the common crystal faces of the binary and quaternary cocrystals, and noting that no ternary solid is obtained, a plausible mechanism has been proposed for the formation of this rare supramolecular architecture.

Item Type:	Journal Article
Publication:	ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Publisher:	WILEY-V C H VERLAG GMBH
Additional Information:	copyright for this article belongs to WILEY-V C H VERLAG GMBH
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	11 Sep 2019 08:39
Last Modified:	11 Sep 2019 08:39
URI:	http://eprints.iisc.ac.in/id/eprint/63490

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