12355-99-6

Basic information

• Product Name: RHENIUM BORIDE
• Synonyms: RHENIUM BORIDE;Rhenium boride, 99.5% (metals basis)
• CAS NO: 12355-99-6
• Molecular Formula: B2Re
• Molecular Weight: 207.83
• Mol File: 12355-99-6.mol
• Article Data: 7

Chemical Properties

• Appearance: /
• CAS DataBase Reference: RHENIUM BORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: RHENIUM BORIDE(12355-99-6)
• EPA Substance Registry System: RHENIUM BORIDE(12355-99-6)

Safety Data

• Hazardous Substances Data: 12355-99-6(Hazardous Substances Data)

Usage

Chemical Properties

formula is generally Re7B3 with possible traces of ReB2; -100mesh with 99.5% purity [CER91]

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Related news

Theoretical prediction of structural and magnetic properties of small RHENIUM BORIDE (cas 12355-99-6) clusters RemBn08/12/2019

For the small rhenium boride clusters, we carried out detailed calculations based on density-functional theory. The results indicate that the ratio of boron to rhenium with 2:1 and 4:3 possess higher stability among considered RemBn (m=1–3, n=1–3m) clusters, which the ratio with 2:1 was also f...detailed

Relevant articles and documents

Confined-plume chemical deposition: Rapid synthesis of crystalline coatings of known hard or superhard materials on inorganic or organic supports by resonant IR decomposition of molecular precursors

A one-step process for preparing microcrystalline coatings of known superhard, very hard, or ultraincompressible ceramic compositions on either inorganic or organic supports is reported. Midinfrared pulsed-laser irradiation of preceramic chemical precurso

Correlation between hardness and elastic moduli of the ultraincompressible transition metal diborides RuB#!2, OsB2, and ReB2

The ultraincompressible transition metal diborides RuB#!2, OsB2, and ReB2 were synthesized by arc melting the elemental metals and boron under an argon atmosphere at ambient pressure. The hardness and Young's modulus were measured using nanoindentation with a Berkovich diamond indenter. The bulk modulus and shear modulus were derived based on an isotropic model and then plotted as a function of hardness. A strong correlation is observed between the hardness and shear modulus for these transition metal diborides.

Crystal structures of the metal diborides ReB2, RuB2, and OsB2 from neutron powder diffraction

Because of the very small scattering power of the light element, the crystal structures of metal borides that contain heavy metal atoms are difficult to determine unambiguously from X-ray diffraction data only. Using neutron diffraction methods and applying them to isotopically enriched 11B boride powders, the crystal structures of ReB2, RuB2, and OsB2 were re-determined and analysed with respect to the boron atom arrangement. In accordance with the findings from X-ray diffraction experiments, the structures exhibit corrugated boron atom layers of conjugated six-rings, either seat-like (ReB2) or boatlike (RuB2, OsB 2). ReB2 crystallises in the hexagonal crystal system, space group P63/mmc (no. 194, a = 290.05(1) pm, c = 747.72(1) pm); OsB2 and RuB2 are isostructural and crystallise orthorhombically, space group Pmmn (no. 59, a = 464.479(5) pm, b = 286.515(3) pm, c = 404.560(6) pm (RuB2); a = 468.408(5) pm, b = 287.255(3) pm, c = 407.693(6) pm (OsB2)). Boron-boron distances vary between 181.7 and 189.9 pm. For RuB2 and OsB2, shortest metal-boron distances range from 217.2 to 217.3 pm, indicating a covalent interaction between metal and boron, compared to 222.7 pm for ReB2. Metal- metal distances are between 286.5 pm and 302.2 pm. All three compounds have been described as very hard or incompressible materials.