Niobium(V) bromide can be prepared by the reaction of bromine with niobium metal at 230-250 °C in a tube furnace. It can also be produced from the more accessible oxide by metathesis using aluminium tribromide:[4]
Nb2O5 + 3.3AlBr3 → 2NbBr5 + 3.3Al2O3
A challenge with the latter method is the occurrence of NbOBr3 as an impurity.
Referencesedit
^"Niobium(V) bromide". pubchem.ncbi.nlm.nih.gov. Retrieved 28 December 2021.
^Greenwood, N. N.; & Earnshaw, A. (1997). Chemistry of the Elements (2nd Edn.), Oxford: Butterworth-Heinemann. ISBN0-7506-3365-4.
^Hönle, Wolfgang; Furuseth, Sigrid; Schnering, Hans Georg von (1990). "Synthesis and Crystal Structure of Ordered, Orthorhombic α-NbBr5". Zeitschrift für Naturforschung B. 45 (7): 952–956. doi:10.1515/znb-1990-0706. S2CID 98293250.
^G. Brauer (1963). "Niobium(V) and Tantalum(V) Bromides". In G. Brauer (ed.). Handbook of Preparative Inorganic Chemistry, 2nd Ed. Vol. 1. NY, NY: Academic Press. p. 1311.
External linksedit
Web Elements
January 01, 1970
niobium, bromide, inorganic, compound, with, formula, nb2br10, name, comes, from, compound, empirical, formula, nbbr5, diamagnetic, orange, solid, that, hydrolyses, readily, compound, adopts, edge, shared, bioctahedral, structure, which, means, that, nbbr5, un. Niobium V bromide is the inorganic compound with the formula Nb2Br10 Its name comes from the compound s empirical formula NbBr5 2 It is a diamagnetic orange solid that hydrolyses readily The compound adopts an edge shared bioctahedral structure which means that two NbBr5 units are joined by a pair of bromide bridges There is no bond between the Nb centres 3 Niobium V chloride niobium V iodide tantalum V chloride tantalum V bromide and tantalum V iodide all share this structural motif Niobium V bromide Names Other names niobium pentabromide Identifiers CAS Number 13478 45 0 NbBr5 N17633 68 0 Nb2Br10 N 3D model JSmol Interactive image ChemSpider 19388901 Y ECHA InfoCard 100 033 420 EC Number 236 778 5 PubChem CID 83517 CompTox Dashboard EPA DTXSID6065505 InChI InChI 1S 5BrH Nb h5 1H q 5 p 5 YKey DSYRJFDOOSKABR UHFFFAOYSA I YInChI 1 5BrH Nb h5 1H q 5 p 5Key DSYRJFDOOSKABR AACRGIKGAJ SMILES Br Br Br Br Br Nb 5 Properties Chemical formula NbBr5 Molar mass 492 430 g mol Appearance wine red to black crystals Density 4 417 g cm3 Melting point 254 C 489 F 527 K Boiling point 364 C 687 F 637 K Solubility in water hydrolysis Structure Crystal structure orthorhombic Hazards GHS labelling 1 Pictograms Signal word Danger Hazard statements H302 H312 H314 H332 Precautionary statements P260 P261 P264 P270 P271 P280 P301 P312 P301 P330 P331 P302 P352 P303 P361 P353 P304 P312 P304 P340 P305 P351 P338 P310 P312 P321 P322 P330 P363 P405 P501 Safety data sheet SDS MSDS Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa N verify what is Y N Infobox referencesSynthesis editNiobium V bromide can be prepared by the reaction of bromine with niobium metal at 230 250 C in a tube furnace It can also be produced from the more accessible oxide by metathesis using aluminium tribromide 4 Nb2O5 3 3 AlBr3 2 NbBr5 3 3 Al2O3 A challenge with the latter method is the occurrence of NbOBr3 as an impurity References edit Niobium V bromide pubchem ncbi nlm nih gov Retrieved 28 December 2021 Greenwood N N amp Earnshaw A 1997 Chemistry of the Elements 2nd Edn Oxford Butterworth Heinemann ISBN 0 7506 3365 4 Honle Wolfgang Furuseth Sigrid Schnering Hans Georg von 1990 Synthesis and Crystal Structure of Ordered Orthorhombic a NbBr5 Zeitschrift fur Naturforschung B 45 7 952 956 doi 10 1515 znb 1990 0706 S2CID 98293250 G Brauer 1963 Niobium V and Tantalum V Bromides In G Brauer ed Handbook of Preparative Inorganic Chemistry 2nd Ed Vol 1 NY NY Academic Press p 1311 External links editWeb Elements Retrieved from https en wikipedia org w index php title Niobium V bromide amp oldid 1190934330, wikipedia, wiki, book, books, library,
