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Dichlorobis(glycocyamine-O)copper(II).

M Ramos Silva1, J A Paixão, A Matos Beja

  • 1CEMDRX, Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade de Coimbra, P-3004-516 Coimbra, Portugal.

Acta Crystallographica. Section C, Crystal Structure Communications
|February 15, 2001
PubMed
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This study reports a novel copper(II) complex featuring glycocyamine, a zwitterionic molecule. The complex exhibits a unique square-planar coordination and a stabilizing 3D hydrogen-bonded network.

Area of Science:

  • Coordination Chemistry
  • Inorganic Chemistry
  • Materials Science

Background:

  • Glycocyamine (diaminomethyleneamino)acetic acid is an organic molecule not previously incorporated into metal complexes.
  • Copper(II) complexes are studied for their diverse structural and electronic properties.

Purpose of the Study:

  • To synthesize and characterize a new copper(II) complex with glycocyamine.
  • To investigate the coordination environment and structural features of the resulting complex.

Main Methods:

  • Single crystal X-ray diffraction was used to determine the molecular and crystal structure.
  • Spectroscopic methods were employed for characterization.

Main Results:

  • A novel copper(II) complex, [CuCl2(C3H7N3O2)2], was successfully synthesized.

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  • The complex consists of discrete centrosymmetric Cu(II) monomers with square-planar coordination by two chloride ions and two oxygen atoms from zwitterionic glycocyamine.
  • A three-dimensional hydrogen bond network involving the glycocyamine zwitterions stabilizes the crystal structure.

    • Conclusions:

    • This work represents the first reported metal complex of glycocyamine.
    • The study elucidates the coordination behavior of glycocyamine as a zwitterion in a copper(II) complex.
    • The hydrogen bonding network plays a crucial role in the structural stability of the complex.