Crystal structure of 4-chloro-2-nitrobenzoic acid with 4-hydroxyquinoline: a disordered structure over two states of 4-chloro-2-nitrobenzoic acid–quinolin-4(1<i>H</i>)-one (1/1) and 4-hydroxyquinolinium 4-chloro-2-nitrobenzoate
Acta crystallographica. Section E, Crystallographic communications