A second monoclinic polymorph of ethylenediammonium bis(hydrogen squarate) monohydrate
2011
New Form of Ethylenediammonium Bis(Hydrogen Squarate) Monohydrate
publication
Evidence: moderate
Author Information
Author(s): Zenkhri Louiza, Bataille Thierry, Audebrand Nathalie
Primary Institution: Université Kasdi Merbah Ouargla
Hypothesis
The study investigates the synthesis and structure of a new polymorph of ethylenediammonium bis(hydrogen squarate) monohydrate.
Conclusion
The new polymorph was successfully synthesized and characterized, revealing a three-dimensional framework stabilized by hydrogen bonds.
Supporting Evidence
- The title compound crystallized together with a previously reported polymorph.
- The molecular framework is stabilized by hydrogen bonds.
- The new polymorph has a different orientation of amine groups compared to the previously reported form.
Takeaway
Scientists made a new version of a chemical compound by slowly evaporating a solution, and it has a special structure that helps hold it together.
Methodology
The compound was synthesized from an aqueous solution and characterized using X-ray diffraction.
Limitations
The role of the metal salt in the synthesis is not clearly established.
Digital Object Identifier (DOI)
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