Manganese(III) fluoride (also known as Manganese trifluoride) is the inorganic compound with the formula MnF3. This red/purplish solid is useful for converting hydrocarbons into fluorocarbons, i.e., it is a fluorination agent.[2] It forms a hydrate and many derivatives.
It can also be prepared by the reaction of elemental fluorine with a manganese(II) halide at ~250 °C.[4]
Structureedit
Like vanadium(III) fluoride, MnF3 features octahedral metal centers with the same average M-F bond distances. In the Mn compound, however, is distorted (and hence a monoclinic unit cell vs. a higher symmetry one) due to the Jahn-Teller effect, with pairs of Mn-F distances of 1.79, 1.91, 2.09 Å.[5][6][7]
The hydrate MnF3.3H2O is obtained by crystallisation of MnF3 from hydrofluoric acid. The hydrate exists as two polymorphs, with space groups P21/c and P21/a. Each consists of the salt [Mn(H2O)4F2]+[Mn(H2O)2F4]− ).[8]
Reactionsedit
MnF3 is Lewis acidic and forms a variety of derivatives. One example is K2MnF3(SO4).[9] MnF3 reacts with sodium fluoride to give the octahedral hexafluoride:[4]
3NaF + MnF3 → Na3MnF6
Related reactions salts of the anions MnF52− or MnF4−. These anions adopt chain and layer structures respectively, with bridging fluoride. Manganese remains 6 coordinate, octahedral, and trivalent in all of these materials.[4]
Manganese(III) fluoride fluorinates organic compounds including aromatic hydrocarbons,[10] cyclobutenes,[11] and fullerenes.[12]
^Burley, G. A.; Taylor, R. (2004). "Manganese(III) Fluoride". Encyclopedia of Reagents for Organic Synthesis. J. Wiley & Sons. doi:10.1002/047084289X.rn00411.
^Z. Mazej (2002). "Room temperature syntheses of MnF3, MnF4 and hexafluoromanganete(IV) salts of alkali cations". Journal of Fluorine Chemistry. 114 (1): 75–80. doi:10.1016/S0022-1139(01)00566-8.
^ abcInorganic chemistry, Catherine E. Housecroft, A.G. Sharpe, pp.711-712, section Manganese (III) , googlebooks link
^Hepworth, M. A.; Jack, K. H.; Nyholm, R. S. (1957). "Interatomic Bonding in Manganese Trifluoride". Nature. 179 (4552): 211–212. Bibcode:1957Natur.179..211H. doi:10.1038/179211b0. S2CID 4208409.
^M. A. Hepworth; K. H. Jack (1957). "The Crystal Structure of Manganese Trifluoride, MnF3". Acta Crystallographica. 10 (5): 345–351. doi:10.1107/S0365110X57001024.
^Molinier Michel; Massa Werner (1992). "Structures of two polymorphs of MnF3·3H2O". Journal of Fluorine Chemistry. 57 (1–3): 139–146. doi:10.1016/S0022-1139(00)82825-0.
^Bhattacharjee, M. N; Chaudhuri, M. K. (2007). "Dipotassium Trifluorosulfato‐Manganate(III)". Inorganic Syntheses. Vol. 27. pp. 312–313. doi:10.1002/9780470132586.ch61. ISBN978-0-470-13258-6. {{cite book}}: |journal= ignored (help)
^Fluorination of p-chlorobenzotrifluoride by manganese trifluoride 2011-08-23 at the Wayback Machine A. Kachanov, V. Kornilov, V.Belogay , Fluorine Notes :Vol. 1 (1) November–December 1998 , via notes.fluorine1.ru
^Junji Mizukado; Yasuhisa Matsukawa; Heng-dao Quan; Masanori Tamura; Akira Sekiya (2006). "Fluorination of Fluoro-Cyclobutene with High-Valency Metal Fluoride". Journal of Fluorine Chemistry. 127: 79–84. doi:10.1016/j.jfluchem.2005.10.007.
^V. É. Aleshina; A. Ya. Borshchevskii; E. V. Skokan; I. V. Arkhangel'skii; A.V. Astakhov; N.B. Shustova (2002). "Fluorination of the Cubic and Hexagonal C60 Modifications by Crystalline Manganese Trifluoride". Physics of the Solid State. 44 (4): 629–630. Bibcode:2002PhSS...44..629A. doi:10.1134/1.1470543. S2CID 94250136.
^In situ time-resolved X-ray diffraction study of manganese trifluoride thermal decomposition , J.V. Raua, V. Rossi Albertinib, N.S. Chilingarova, S. Colonnab, U. Anselmi Tamburini, Journal of Fluorine Chemistry 4506 (2001) 1–4 , online version
^Nachtigall, Olaf; Pataki, Astrid; Molski, Matthias; Lentz, Dieter; Spandl, Johann (2015). "Solvates of Manganese Trichloride Revisited - Synthesis, Isolation, and Crystal Structure of MnCl3(THF)3". Zeitschrift für Anorganische und Allgemeine Chemie. 641 (6): 1164–1168. doi:10.1002/zaac.201500106.
Further readingedit
Novel syntheses of some binary fluorides: the role of anhydrous hydrogen fluoride Acta Chim. Slov. 1999, 46(2), pp. 229–238, Zoran Mazej, Karel Lutar and Boris Žemva
Knudsen Cell mass spectrometry study of Manganese Trifluoride vaporisation, High temperature corrosion and materials chemistry IV: proceedings of the International Symposium, pp. 521–525, google books
External linksedit
February 16, 2024
manganese, fluoride, also, known, manganese, trifluoride, inorganic, compound, with, formula, mnf3, this, purplish, solid, useful, converting, hydrocarbons, into, fluorocarbons, fluorination, agent, forms, hydrate, many, derivatives, namesiupac, name, other, n. Manganese III fluoride also known as Manganese trifluoride is the inorganic compound with the formula MnF3 This red purplish solid is useful for converting hydrocarbons into fluorocarbons i e it is a fluorination agent 2 It forms a hydrate and many derivatives Manganese III fluoride NamesIUPAC name Manganese III fluorideOther names Manganese trifluoride manganic fluorideIdentifiersCAS Number 7783 53 1 Y3D model JSmol Interactive imageChemSpider 74193 YECHA InfoCard 100 029 096EC Number 232 006 6PubChem CID 82213RTECS number OP0882600UNII VHG84D268X YCompTox Dashboard EPA DTXSID50893904InChI InChI 1S 3FH Mn h3 1H q 3 p 3 YKey SRVINXWCFNHIQZ UHFFFAOYSA K YInChI 1 3FH Mn h3 1H q 3 p 3Key SRVINXWCFNHIQZ DFZHHIFOAXSMILES Mn 3 F F F PropertiesChemical formula MnF3Molar mass 111 938 g molAppearance purple pink powder hygroscopicDensity 3 54 g cm3Melting point gt 600 C 1 112 F 873 K decomposes Solubility in water hydrolysisMagnetic susceptibility x 10 500 10 6 cm3 molStructureCrystal structure Monoclinic mS48Space group C2 c No 15Coordination geometry distorted octahedralHazardsOccupational safety and health OHS OSH Main hazards toxic fumesGHS labelling 1 PictogramsSignal word DangerHazard statements H272 H301 H312 H315 H319 H332 H335Precautionary statements P220 P261 P280 P301 P310 P305 P351 P338Related compoundsOther anions manganese III oxide manganese III acetateOther cations chromium III fluoride iron III fluoride cobalt III fluorideRelated compounds manganese II fluoride manganese IV fluorideExcept 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 references Contents 1 Synthesis structure and reactions 1 1 Structure 1 2 Reactions 2 See also 3 References 3 1 Further reading 4 External linksSynthesis structure and reactions editMnF3 can be prepared by treating a solution of MnF2 in hydrogen fluoride with fluorine 3 MnF2 0 5 F2 MnF3It can also be prepared by the reaction of elemental fluorine with a manganese II halide at 250 C 4 Structure edit Like vanadium III fluoride MnF3 features octahedral metal centers with the same average M F bond distances In the Mn compound however is distorted and hence a monoclinic unit cell vs a higher symmetry one due to the Jahn Teller effect with pairs of Mn F distances of 1 79 1 91 2 09 A 5 6 7 The hydrate MnF3 3H2O is obtained by crystallisation of MnF3 from hydrofluoric acid The hydrate exists as two polymorphs with space groups P21 c and P21 a Each consists of the salt Mn H2O 4F2 Mn H2O 2F4 8 Reactions edit MnF3 is Lewis acidic and forms a variety of derivatives One example is K2MnF3 SO4 9 MnF3 reacts with sodium fluoride to give the octahedral hexafluoride 4 3NaF MnF3 Na3MnF6Related reactions salts of the anions MnF52 or MnF4 These anions adopt chain and layer structures respectively with bridging fluoride Manganese remains 6 coordinate octahedral and trivalent in all of these materials 4 Manganese III fluoride fluorinates organic compounds including aromatic hydrocarbons 10 cyclobutenes 11 and fullerenes 12 On heating MnF3 decomposes to manganese II fluoride 13 14 MnF3 is a source of MnCl3 complexes by reaction with bismuth trichloride 15 See also editCoF3 another fluorinating agent based on a transition metal in an oxidising 3 state References edit GHS sigma aldrich 339296 dead link Burley G A Taylor R 2004 Manganese III Fluoride Encyclopedia of Reagents for Organic Synthesis J Wiley amp Sons doi 10 1002 047084289X rn00411 Z Mazej 2002 Room temperature syntheses of MnF3 MnF4 and hexafluoromanganete IV salts of alkali cations Journal of Fluorine Chemistry 114 1 75 80 doi 10 1016 S0022 1139 01 00566 8 a b c Inorganic chemistry Catherine E Housecroft A G Sharpe pp 711 712 section Manganese III googlebooks link Wells A F 1984 Structural Inorganic Chemistry Oxford Clarendon Press ISBN 0 19 855370 6 Hepworth M A Jack K H Nyholm R S 1957 Interatomic Bonding in Manganese Trifluoride Nature 179 4552 211 212 Bibcode 1957Natur 179 211H doi 10 1038 179211b0 S2CID 4208409 M A Hepworth K H Jack 1957 The Crystal Structure of Manganese Trifluoride MnF3 Acta Crystallographica 10 5 345 351 doi 10 1107 S0365110X57001024 Molinier Michel Massa Werner 1992 Structures of two polymorphs of MnF3 3H2O Journal of Fluorine Chemistry 57 1 3 139 146 doi 10 1016 S0022 1139 00 82825 0 Bhattacharjee M N Chaudhuri M K 2007 Dipotassium Trifluorosulfato Manganate III Inorganic Syntheses Vol 27 pp 312 313 doi 10 1002 9780470132586 ch61 ISBN 978 0 470 13258 6 a href Template Cite book html title Template Cite book cite book a journal ignored help Fluorination of p chlorobenzotrifluoride by manganese trifluoride Archived 2011 08 23 at the Wayback Machine A Kachanov V Kornilov V Belogay Fluorine Notes Vol 1 1 November December 1998 via notes fluorine1 ru Junji Mizukado Yasuhisa Matsukawa Heng dao Quan Masanori Tamura Akira Sekiya 2006 Fluorination of Fluoro Cyclobutene with High Valency Metal Fluoride Journal of Fluorine Chemistry 127 79 84 doi 10 1016 j jfluchem 2005 10 007 V E Aleshina A Ya Borshchevskii E V Skokan I V Arkhangel skii A V Astakhov N B Shustova 2002 Fluorination of the Cubic and Hexagonal C60 Modifications by Crystalline Manganese Trifluoride Physics of the Solid State 44 4 629 630 Bibcode 2002PhSS 44 629A doi 10 1134 1 1470543 S2CID 94250136 Chisholm Hugh ed 1911 Manganese Manganic Salts Encyclopaedia Britannica Vol 17 11th ed Cambridge University Press p 570 In situ time resolved X ray diffraction study of manganese trifluoride thermal decomposition J V Raua V Rossi Albertinib N S Chilingarova S Colonnab U Anselmi Tamburini Journal of Fluorine Chemistry 4506 2001 1 4 online version Nachtigall Olaf Pataki Astrid Molski Matthias Lentz Dieter Spandl Johann 2015 Solvates of Manganese Trichloride Revisited Synthesis Isolation and Crystal Structure of MnCl3 THF 3 Zeitschrift fur Anorganische und Allgemeine Chemie 641 6 1164 1168 doi 10 1002 zaac 201500106 Further reading edit Novel syntheses of some binary fluorides the role of anhydrous hydrogen fluoride Acta Chim Slov 1999 46 2 pp 229 238 Zoran Mazej Karel Lutar and Boris Zemva Knudsen Cell mass spectrometry study of Manganese Trifluoride vaporisation High temperature corrosion and materials chemistry IV proceedings of the International Symposium pp 521 525 google booksExternal links editNational Pollutant Inventory Fluoride and compounds fact sheet National Pollutant Inventory Manganese and compounds Fact Sheet Retrieved from https en wikipedia org w index php title Manganese III fluoride amp oldid 1176958165, wikipedia, wiki, book, books, library,
