Copper(II) Glycinate

Copper(II) glycinate is a coordination complex with the chemical formula C4H8CuN2O4. It can be either found as a monohydrate or anhydrous.

Structure
The glycinate anions form a five membered coordination ring around the copper(II) cation in the monohydrate. In anhydrous copper(II) glycinate a four membered ring forms rather than the typical five. One nitrogen and one oxygen from each glycinate anion form coordination bonds with copper center. A trans and cis isomer exist of copper(II) glycinate because the ligand is not symmetric, and the isomer that forms depends on the orientation of the ligand during the reaction.

Synthesis
Copper(II) glycinate can be created by reacting a 70 °C solution of glycine and copper(II) acetate.

This solution should then be cooled on ice to precipitate out small needle like crystals. The product can then be washed with ethanol and dried in air.

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