8-Hydroxyquinolinium 2-carboxyacetate

Formation of ladders from R(4)4(8) and R(6)6(12) rings in 8-hydroxyquinolinium chloride monohydrate: comparisons with the supramolecular arrangements in related salts.

Molecules of the title compound, C9H8NO+.Cl-.H2O, are linked into two rings by strong hydrogen bonding via the free water molecules and the Cl- anions. The two hydrogen-bonded rings are joined to give a corrugated chain along [001]. Comparisons with other 8-hydroxyquinoline-based salts are also presented, highlighting similar ring structures in a 1:1 salt with Kemp's triacid (r-1,c-3,c-5-trimet...

Vol. 8, No. 2 , 2019

Cover vol. 8, no. 2, June 2011

8-Hydroxy-2-methylquinoline

The asymmetric unit of the title compound, C(10)H(9)NO, contains two independent mol-ecules which are linked by a pair of O-H⋯N hydrogen bonds into a hydrogen-bonded dimer.

8 6 4 2