215791

Niob(V)-chlorid

99%

• Synonym(e): Niobpentachlorid
• Lineare Formel: NbCl₅
• CAS-Nummer: 10026-12-7
• Molekulargewicht: 270.17
• EG-Nummer: 233-059-8
• MDL-Nummer: MFCD00011127
• UNSPSC-Code: 12352302
• PubChem Substanz-ID: 24852915
• NACRES: NA.23

Eigenschaften

• Assay: 99%
• Form: powder
• Methode(n): FTIR: suitable
• bp: 254 °C (lit.)
• mp (Schmelzpunkt): 204.7 °C (lit.)
• Dichte: 2.75 g/mL at 25 °C (lit.)
• SMILES String: Cl[Nb](Cl)(Cl)(Cl)Cl
• InChI: 1S/5ClH.Nb/h5*1H;/q;;;;;+5/p-5
• InChIKey: YHBDIEWMOMLKOO-UHFFFAOYSA-I

Beschreibung

Allgemeine Beschreibung

Niobium(V) chloride is a yellow crystalline solid with a high melting point. It is widely used in the field of catalysis, semiconductor devices, and batteries. It is a highly specialized Lewis acid in chemical synthesis, activating alkenes for the carbonyl-ene reaction and the Diels-Alder process.

Anwendung

Used to form mixed chloro-aryloxide compounds, such as [Nb(OC_6H3-2,6-i-Pr₂)₂Cl₃]₂, which form pyridine or phosphine adducts with a distorted six-coordinate geometry.†

Niobium(V) chloride can be used:

• As a precursor to prepare K₂NbF₇:Mn⁴⁺ red phosphors for white light-emitting diode(LED) devices.
• As a Lewis acid to synthesize fluorescein dye derivatives for dye-sensitized solar cells.
• As a dopant to enhance the thermoelectric properties of n-type tin selenide.
• As a precursor to synthesize Nb₂O₅ microspheres and TiNb₂O₇ nanoparticles as high-rate capability and long-cycle-life anode materials for lithium-ion batteries .

Sicherheitshinweise

• Piktogramme: GHS05,GHS07
• Signalwort: Danger
• H-Sätze: H302,H314,H335
• P-Sätze: P260 - P271 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B - STOT SE 3
• Zielorgane: Respiratory system
• Zusätzliche Gefahrenhinweise: EUH014
• Lagerklassenschlüssel: 8B - Non-combustible corrosive hazardous materials
• WGK: WGK 1
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges