Structure and absolute configuration of a quinic acid–copper(II) complex

In the title compound, catena-poly[(aquachlorocopper)-μ-(1,3,4,5-tetrahydroxycyclohexane-1-carboxylato-O,O 1 :O 3 ,O 4 ) monohydrate], [CuCl(C 7 H 11 O 6 )(H 2 O)].H 2 O, the absolute configuration (1R,3R,4R,SR) has been verified. The 1,3,4,5-tetrahydroxycyclohexane-1-carboxylic acid (quin) ligand binds as a tetradentate ligand through the carboxylate, one axial and two adjacent trans equatorial hydroxy O atoms to two Cu atoms. Copper is in a distorted octahedral coordination; Cl and one water molecule complete the set of donor atoms. The structure consists of infinite chains running parallel to the a axis, held together via the solvated water molecule by two hydrogen bonds, one of which is very short