Acta Crystallographica, Section C: Crystal Structure Communications 1999-06-15

Hydrogen bonding in quinolinium-4-carboxylate dihydrate.

A J Dobson, R E Gerkin

Index: Acta Crystallogr. C 55 ( Pt 6) , 935-7, (1999)

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Abstract

The title acid, C10H7NO2.2H2O, crystallized in the non-centrosymmetric space group Cc with one zwitterionic organic molecule and two water molecules in the asymmetric unit. One N-H...O and four O-H...O hydrogen bonds are present in this structure, with donor-acceptor distances ranging from 2.688 (2) to 2.852 (3) A. These hydrogen bonds generate a three-dimensional network. Structural comparisons are made with anhydrous quinoline-4-carboxylic acid.