The oxalate ion acts as a bidentate ligand rather than a tetradentate ligand

the verdict

SUPPORTED

the evidence backs this

Recorded sources

2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Chemical literature consistently shows that the oxalate ion acts as a bidentate ligand by coordinating through two carboxylate oxygen atoms.

The analysis

The retrieved papers include direct evidence about the coordination behavior of the oxalate ion. Papers [1] and [5] both establish that oxalate acts as a bidentate ligand (chelating via two carboxylate groups). None of the papers provide evidence of oxalate acting as a tetradentate ligand. Therefore, the claim is supported.

Evidence for · 2

Study of Aqueous Am(III)-Aliphatic Dicarboxylate Complexes: Coordination Mode-Dependent Optical Property and Stability Changes.

Recorded source metadata

Hee-Kyung Kim, Keunhong Jeong, Hye-Ryun Cho, K. Kwak, E. Jung, W. Cha. Study of Aqueous Am(III)-Aliphatic Dicarboxylate Complexes: Coordination Mode-Dependent Optical Property and Stability Changes.. 2020. https://doi.org/10.1021/acs.inorgchem.0c01538

Paper [1] explicitly describes oxalate binding to metal centers via side-on bidentate coordination through its two carboxylate groups.

Source citation format

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More for · 1

Thermodynamic Parameters and Coordination Behavior of Eu(III) Complexes with Tartrate and Oxalate Ligands: Study Using NMR and Potentiometry Methods

Recorded source metadata

Sabira Issabekova, Dana Belgibayeva, Shamshiya Amerkhanova, Zhuldyz Satayeva, Guzel Abilova, Karlyga Almuratova, Nuriya Aikenova, Lobar Sharipova. Thermodynamic Parameters and Coordination Behavior of Eu(III) Complexes with Tartrate and Oxalate Ligands: Study Using NMR and Potentiometry Methods. 2026. https://doi.org/10.3390/inorganics14020047

Paper [5] supports the bidentate coordination mode of oxalate ligands in complex formation with metal ions.

Source citation format

The paper trail · every fact has a biography

first checked31 Jul 2026

judged → SUPPORTED · 8231 Jul 2026

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