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Crystal Chemistry of High-Temperature Borates
Nikolay I Leonyuk1, Victor V Maltsev1, Elena A Volkova1
1Department of Crystallography and Crystal Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
Molecules (Basel, Switzerland)
|May 30, 2020
Summary
Borate crystals are important materials with diverse properties due to flexible structures. This review explores crystal chemistry and proposes a new classification for anhydrous borates based on structural features.
Area of Science:
- Materials Science
- Solid State Chemistry
- Crystallography
Background:
- Borate-based crystals are of significant research interest due to their diverse physical properties and potential applications.
- The structural flexibility of borates, arising from linked BO3 groups and BO4 tetrahedra, leads to varied functional characteristics.
Purpose of the Study:
- To provide a concise review of the crystal chemistry and structural features of anhydrous and high-temperature borates.
- To analyze polymorphism in boron-oxygen radicals based on cation nature and synthesis conditions.
- To discuss principles of borate structure systematics and propose an alternative classification for anhydrous compounds.
Main Methods:
- Literature review focusing on crystal chemistry and structure of anhydrous/high-temperature borates.
- Analysis of polymorphism in relation to cation properties and synthesis parameters.
- Systematic analysis of structural laws and principles governing borate formation.
Main Results:
- Identified polymorphism in boron-oxygen radicals influenced by cation type and synthesis conditions.
- Discussed governing laws and systematics of borate structures.
- Proposed an alternative four-order classification system for anhydrous borates.
Conclusions:
- Borate crystal structures are highly flexible, enabling diverse properties and applications.
- A new classification system for anhydrous borates is presented, based on anion formers, cation charge, N-factor, and cation characteristics.
Keywords:
anhydrous boratesboron-oxygen radicalscrystal chemistryfundamental structural unitshigh-temperature boratesMore Related Videos
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