Diaqua­bis­(4-carb­oxy-2-ethyl-1H-imidazole-5-carboxyl­ato-κ2N3,O4)cadmium dihydrate [Cd(C7H7N2O4)2(H2O)2]·2H2O
2011

Cadmium Complex with Imidazole-4,5-Dicarboxylic Acid

publication Evidence: moderate

Author Information

Author(s): Zhang Gang, Wang Yong

Primary Institution: Henan University of Urban Construction

Hypothesis

The study investigates the synthesis and crystal structure of a cadmium complex formed with 2-ethyl-4,5-imidazolecarboxylic acid.

Conclusion

The cadmium complex exhibits a distorted octahedral coordination environment and forms a three-dimensional supramolecular structure through hydrogen bonding.

Supporting Evidence

  • The cadmium ion is hexa-coordinated by four oxygen atoms and two nitrogen atoms.
  • The structure is stabilized by extensive hydrogen bonding.
  • The synthesis involved heating the reactants in a Teflon-lined reactor.

Takeaway

Scientists made a special cadmium compound using a specific acid, and they found that it has a unique structure that helps it stick together in a special way.

Methodology

The compound was synthesized by reacting cadmium nitrate with 2-ethyl-4,5-imidazoledicarboxylic acid in an aqueous solution under hydrothermal conditions.

Digital Object Identifier (DOI)

10.1107/S1600536811021428

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