Diaqua­bis­(2-oxo-2H-chromene-3-carboxyl­ato-κ2O2,O3)cadmium [Cd(C10H5O4)2(H2O)2]
2011

New Cadmium Complex with Coumarin Ligand

publication Evidence: moderate

Author Information

Author(s): Cui Yue, Gao Qian, Wang Huan-Huan, Wang Lin, Xie Ya-Bo

Primary Institution: Beijing University of Technology

Hypothesis

The study investigates the synthesis and crystal structure of a new mononuclear cadmium complex coordinated by coumarin-3-carboxylic acid.

Conclusion

The cadmium complex exhibits a slightly distorted octahedral geometry and forms layers through hydrogen bonding.

Supporting Evidence

  • The cadmium atom is located on a crystallographic inversion center.
  • The complex is six-coordinated by two O atoms from water and four O atoms from coumarin ligands.
  • Hydrogen bonds link the complex molecules into layers.

Takeaway

Scientists made a new cadmium compound using a special acid, and it has a unique shape that helps it stick together in layers.

Methodology

The complex was synthesized by layering solutions of cadmium nitrate, coumarin-3-carboxylic acid, and lithium hydroxide, followed by crystallization.

Digital Object Identifier (DOI)

10.1107/S1600536810053523

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