Issue 12, 2009

Different solvates of two isomeric dicarboxylic acids with pyridine and quinoline

Abstract

The 2-[7-(2-carboxy-phenyl)-1,3,6,8-tetraoxo-3,6,7,8-tetrahydro-1H-benzo[lmn][3,8]phenanthrolin-2-yl]-benzoic acid (A) forms two polymorphic solvates with pyridine. The polymorphs arise from differences in the hydrogen bond interactions. Two different solvates of A with quinoline are also prepared and structurally characterized. These quinoline solvates are formed via encapsulation of quinoline in the assemblies of quinoline with A. The quinoline molecules in these solvates are hydrogen bonded to dicarboxylic acid (A) through different types of hydrogen bonds. The solvates of 3-[7-(3-carboxy-phenyl)-1,3,6,8-tetraoxo-3,6,7,8-tetrahydro-1H-benzo[lmn][3,8]phenanthrolin-2-yl]-benzoic acid (B) with pyridine or quinoline form assemblies which encapsulate additional pyridine or quinoline molecules.

Graphical abstract: Different solvates of two isomeric dicarboxylic acids with pyridine and quinoline

Supplementary files

Article information

Article type
Paper
Submitted
05 Jun 2009
Accepted
24 Jul 2009
First published
14 Aug 2009

CrystEngComm, 2009,11, 2688-2694

Different solvates of two isomeric dicarboxylic acids with pyridine and quinoline

D. Singh and J. B. Baruah, CrystEngComm, 2009, 11, 2688 DOI: 10.1039/B911084D

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