12138-21-5

Basic information

• Product Name: uranium diselenide
• Synonyms: uranium diselenide;Uran(IV)diselenide;Einecs 235-245-4;Uranium selenide;Uranium selenide (use2)
• CAS NO: 12138-21-5
• Molecular Formula: Se2U
• Molecular Weight: 395.94891
• EINECS: 235-245-4
• Mol File: 12138-21-5.mol
• Article Data: 8

Chemical Properties

• Boiling Point: °Cat760mmHg
• Flash Point: °C
• Appearance: /
• Density: g/cm³
• CAS DataBase Reference: uranium diselenide(CAS DataBase Reference)
• NIST Chemistry Reference: uranium diselenide(12138-21-5)
• EPA Substance Registry System: uranium diselenide(12138-21-5)

Safety Data

• Hazardous Substances Data: 12138-21-5(Hazardous Substances Data)

Usage

Description

Uranium diselenide, also known as uranium(IV) selenide, is a chemical compound consisting of uranium and selenium. It is a black, crystalline solid with a layered structure and exhibits semiconductor properties. Known for its high electrical conductivity, high carrier mobility, and a small bandgap, uranium diselenide has garnered interest for its potential applications in various fields of science and technology.

Uses

Used in Electronic and Optoelectronic Applications:
Uranium diselenide is utilized as a semiconductor material for its unique properties, such as high electrical conductivity and high carrier mobility. These characteristics make it suitable for use in electronic and optoelectronic devices, where efficient charge transport and control are required.
Used in Energy Storage and Conversion Devices:
Due to its semiconductor nature and potential for energy storage and conversion, uranium diselenide is explored for use in devices such as solar cells, batteries, and fuel cells. Its ability to facilitate charge transfer and conversion processes can contribute to the development of more efficient and sustainable energy technologies.
Research and Development:
Uranium diselenide is a subject of ongoing research to further explore its properties and potential applications. Scientists and engineers are investigating its use in various fields, including materials science, nanotechnology, and renewable energy, to harness its unique characteristics for innovative solutions and advancements.

InChI:InChI=1/2Se.U/rSe2U/c1-3-2

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Relevant articles and documents

Synthesis, structure, and optical properties of CsU2(PO 4)3

CsU2(PO4)3 was synthesized in highest yield by the reaction in a fused-silica tube of U, P, and Se in a CsCl flux at 1273 K. It crystallizes with four formula units in space group P21/n of the monoclinic system in a new structure type. The structure of CsU 2(PO4)3 is composed of U and Cs atoms coordinated by PO43- units in distorted octahedral arrangements. Each U atom corner shares with six PO43- units. Each Cs atom face shares with one, edge shares with two, and corner shares with three PO43- units. The structure shares some features with the sodium zirconium phosphate structure type. X-ray powder diffraction results demonstrate that the present CsU2(PO 4)3 compound crystallizes in a structure different from the previously reported β′- and γ-CsU2(PO 4)3 compounds. CsU2(PO4)3 is highly pleochroic, as demonstrated by single-crystal optical absorption measurements.

Crystal structure and magnetic properties of the hexagonal uranium dichalcogenides γUS2 and γUSe2

The crystal structure of the hexagonal uranium disulfide γUS2 (hexagonal P62m, a = 7.236(2) A, c = 4.062(1) A, γ = 120°) has been determined from single crystal X-ray diffraction data and confirmed by Rietveld refinements from X-ray powder diffraction intensities of the isostructural selenide γUSe2 (a = 7.6328(3) A, c = 4.1897(2) A, γ = 120°). They crystallize with the anti-Fe2P-type structure. The sulfide γUS2 exhibits weak ferromagnetism below ≈10 K, and the selenide is a ferromagnet with a Curie temperature of ≈20 K and an ordered moment of 0.72 μB/U under 20 kGauss.

High-pressure X-ray diffraction study of ThOS and UOSe by synchrotron radiation

High-pressure X-ray diffraction studies were performed on ThOS up to 43.3 GPa and on UOSe up to 47.5 GPa, at room temperature, using a diamond anvil cell and synchrotron radiation. The tetragonal structure (P4/nmm) of these compounds was retained over the whole pressure range. The bulk modulus B0 and its pressure derivative B′0 were determined for each compound.