It decomposes at 325 °C, undergoing disproportionation to the tri- and pentafluorides:[2]
2 VF4 → VF3 + VF5
Structureedit
The structure of VF4 is related to that of SnF4. Each vanadium centre is octahedral, surrounded by six fluoride ligands. Four of the fluoride centers bridge to adjacent vanadium centres.[7]
^Becker S., Muller B. G. Vanadium Tetrafluoride, Angew. Chem. Intnl. Ed. Engl. 1990, vol. 29, page 406
External linksedit
WebElements
January 01, 1970
vanadium, tetrafluoride, vanadium, fluoride, inorganic, compound, vanadium, fluorine, paramagnetic, yellow, brown, solid, that, very, hygroscopic, unlike, corresponding, vanadium, tetrachloride, tetrafluoride, volatile, because, adopts, polymeric, structure, d. Vanadium IV fluoride VF4 is an inorganic compound of vanadium and fluorine It is paramagnetic yellow brown solid that is very hygroscopic 2 Unlike the corresponding vanadium tetrachloride the tetrafluoride is not volatile because it adopts a polymeric structure 5 It decomposes before melting Vanadium IV fluoride 3D model of vanadium IV fluoride 3D model of vanadium IV fluoride Names IUPAC name vanadium tetrafluoride Identifiers CAS Number 10049 16 8 3D model JSmol Interactive image ChemSpider 11226730 Y ECHA InfoCard 100 030 143 EC Number 233 171 7 PubChem CID 44717705 UNII M372NC1A3B Y UN number UN2923 CompTox Dashboard EPA DTXSID50894991 InChI InChI 1S 4FH V h4 1H q 4 p 4 YKey JTWLHYPUICYOLE UHFFFAOYSA J YInChI 1 4FH V h4 1H q 4 p 4Key JTWLHYPUICYOLE XBHQNQODAC SMILES V 4 F F F F Properties Chemical formula F 4V Molar mass 126 9351 g mol 1 Appearance Lime green powder hygroscopic 1 Odor Odorless Density 3 15 g cm3 20 C 1 2 975 g cm3 23 C 2 Melting point 325 C 617 F 598 K at 760 mmHg decomposes 1 Boiling point Sublimes 1 Solubility in water Very soluble 1 Solubility Soluble in acetone acetic acid Very slightly soluble in SO2Cl2 alcohols CHCl3 2 Structure Crystal structure Monoclinic mP10 Space group P21 c No 14 Thermochemistry Std molarentropy S 298 126 J mol K 3 Std enthalpy offormation DfH 298 1412 kJ mol 3 Gibbs free energy DfG 1312 kJ mol 3 Hazards Occupational safety and health OHS OSH Eye hazards Causes serious damage Skin hazards Causes burns GHS labelling 4 Pictograms Signal word Danger Hazard statements H300 H314 H330 Precautionary statements P260 P301 P310 P303 P361 P353 P304 P340 P305 P351 P338 P320 P330 P405 P501 Except where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Y verify what is Y N Infobox references Contents 1 Preparation and reactions 2 Structure 3 References 4 External linksPreparation and reactions editVF4 can be prepared by treating VCl4 with HF VCl4 4 HF VF4 4 HCl It was first prepared in this way 6 It decomposes at 325 C undergoing disproportionation to the tri and pentafluorides 2 2 VF4 VF3 VF5Structure editThe structure of VF4 is related to that of SnF4 Each vanadium centre is octahedral surrounded by six fluoride ligands Four of the fluoride centers bridge to adjacent vanadium centres 7 nbsp V4 F References edit a b c d e Lide David R ed 2009 CRC Handbook of Chemistry and Physics 90th ed Boca Raton Florida CRC Press ISBN 978 1 4200 9084 0 a b c d Kwasnik W 1963 Brauer Georg ed Handbook of Preparative Inorganic Chemistry UK ed London Academic Press pp 252 253 a b c Anatolievich Kiper Ruslan vanadium IV fluoride chemister ru Retrieved 2014 06 25 Vanadium IV fluoride 95 alfa com Alfa Aesar Retrieved 2014 06 25 Cotton F Albert Wilkinson Geoffrey Murillo Carlos A Bochmann Manfred 1999 Advanced Inorganic Chemistry 6th ed New York Wiley Interscience p 716 ISBN 0 471 19957 5 Otto Ruff Herbert Lickfett Vanadinfluoride Chemische Berichte 1911 vol 44 pages 2539 2549 doi 10 1002 cber 19110440379 Becker S Muller B G Vanadium Tetrafluoride Angew Chem Intnl Ed Engl 1990 vol 29 page 406External links editWebElements Retrieved from https en wikipedia org w index php title Vanadium tetrafluoride amp oldid 1191114056, wikipedia, wiki, book, books, library,
