Related Experiment Video
Updated: Jul 3, 2026
Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
Li12Cu16+xAl26-x (x = 3.2): a new intermetallic structure type
Volodymyr Pavlyuk1, Grygoriy Dmytriv, Ivan Tarasiuk
1Department of Inorganic Chemistry, Ivan Franko Lviv National University, Kyryla i Mefodiya Street 6, 79005 Lviv, Ukraine.
Researchers discovered a new ternary lithium copper aluminide, Li(12)Cu(16+x)Al(26-x), with a unique crystal structure. This finding expands knowledge of intermetallic compounds and their complex atomic arrangements.
Area of Science:
- Solid-state chemistry
- Crystallography
- Materials science
Background:
- Ternary intermetallic compounds exhibit diverse crystal structures.
- Lithium, copper, and aluminum form complex alloys with potential applications.
Purpose of the Study:
- To characterize a newly synthesized ternary lithium copper aluminide.
- To determine the crystal structure and crystallochemical properties of Li(12)Cu(16+x)Al(26-x).
Main Methods:
- Single-crystal X-ray diffraction was used to determine the crystal structure.
- Analysis of atomic positions and site symmetries was performed.
- Crystallochemical relationships were investigated.
Main Results:
- A new ternary lithium copper aluminide, Li(12)Cu(16+x)Al(26-x) (x = 3.2), was identified.
- The compound crystallizes in a novel structure type (space group P4/mbm).
- The structure features pseudo-Frank-Kasper polyhedra and hexagonal prismatic channels occupied by lithium atoms.
Conclusions:
- The discovered structure represents a new type for ternary lithium copper aluminides.
- The crystallochemical peculiarities are related to Laves phases and the CaCu(5) structure.
- This research contributes to understanding complex intermetallic compound formation.
More Related Videos
04:09Demonstrating the Simplicity and In Situ Temperature Monitoring of the Mechanochemical Synthesis of Metal Chalcogenides Suitable for Thermoelectrics
Published on: August 30, 2024
08:55Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Related Concept Videos
02:37Metallic Solids
All metallic solids exhibit high thermal and electrical conductivity, metallic luster, and malleability. Many...
02:42Ionic Crystal Structures
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
02:42Valence Bond Theory
02:48Ionic Bonding and Electron Transfer
01:29Imperfections in Crystal Structure: Non-Stoichiometric Defects
03:02Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.