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Rhodium-containing oxide-hydrides: covalently stabilized mixed-anion solids
1Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, OX1 3QR, UK. michael.hayward@chem.ox.,ac.uk.
Chemical Communications (Cambridge, England)
|April 6, 2019
Summary
Researchers synthesized novel rhodium-containing oxide-hydrides, LaSrCo0.5Rh0.5O3H and La0.5Sr1.5Mn0.5Rh0.5O3H. This work highlights rhodium
Area of Science:
- Materials Science
- Inorganic Chemistry
- Solid-State Chemistry
Background:
- Transition metal oxide-hydrides are a class of materials with unique properties.
- Stabilizing these lattices, particularly with late transition metals, presents synthetic challenges.
- Understanding the factors governing their stability is crucial for materials design.
Purpose of the Study:
- To synthesize and characterize the first rhodium-containing oxide-hydride phases.
- To investigate the role of rhodium in stabilizing oxide-hydride structures.
- To reinforce the understanding of covalent stabilization mechanisms in transition metal compounds.
Main Methods:
- Topochemical anion exchange reactions were employed for synthesis.
- Characterization techniques were used to confirm the formation of the new phases.
Main Results:
- Successful synthesis of LaSrCo0.5Rh0.5O3H and La0.5Sr1.5Mn0.5Rh0.5O3H.
- Demonstration of rhodium's ability to kinetically stabilize oxide-hydride lattices.
- Evidence supporting the paradigm of covalent stabilization in these materials.
Conclusions:
- Rhodium, a late 4d transition metal, can be incorporated into oxide-hydride structures.
- The kinetic stabilization provided by rhodium is a key factor in forming these novel phases.
- This study advances the understanding of structure-property relationships in transition metal oxide-hydrides.
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