Abstract
The title compound, [Cd(H2O)6][Cu(C15H17N2O4)]2·2H2O, has a chiral structure. Copper has a square-planar coordination with two N and two O atoms of the quadridentate chiral Schiff base ligand. The Cd2+ ion is coordinated by six aqua ligands with a slightly distorted octahedral configuration. Ions are linked by O—H⋯O hydrogen bonds, and the [Cd(H2O)6]2+ cations and [CuL]− anions (L = Schiff base derived from glycyl-l-leucine and salicylaldehyde) occupy a stacking structure within well separated columns along the a axis. The two crystallographically independent copper–Schiff base anions each have a chiral carbon centre with an S configuration. They are related by a non-crystallographic twofold rotation axis parallel to the [010] direction.
Highlights
The title compound, [Cd(H2O)6][Cu(C15H17N2O4)]22H2O, has a chiral structure
The Cd2+ ion is coordinated by six aqua ligands with a slightly distorted octahedral configuration
Ions are linked by O—H O hydrogen bonds, and the
Summary
R factor = 0.024; wR factor = 0.054; data-to-parameter ratio = 14.0. Copper has a square-planar coordination with two N and two O atoms of the quadridentate chiral. The Cd2+ ion is coordinated by six aqua ligands with a slightly distorted octahedral configuration. Ions are linked by O—H O hydrogen bonds, and the [Cd(H2O)6]2+ cations and [CuL] anions (L = Schiff base derived from glycyl-l-leucine and salicylaldehyde) occupy a stacking structure within well separated columns along the a axis. The two crystallographically independent copper–Schiff base anions each have a chiral carbon centre with an S configuration. They are related by a non-crystallographic twofold rotation axis parallel to the [010] direction.
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