Výsledky vyhledávání - "Hermann-Josef Frohn"

Akademický článek

2,3,5,6-Tetrafluoro-1,4-bis(trimethylsilyl)benzene

Autor: Maik Finze, Guido J. Reiss, Hermann-Josef Frohn

Publikováno v: Acta Crystallographica Section E, Vol 68, Iss 4, Pp o1082-o1082 (2012)

The asymmetric unit of the title compound, C12H18F4Si2, contains two independent molecules, both lying on inversion centers. The Carene—Si distances are significantly longer than in the analogous non-fluorinated compound. The packing of the molecul

Externí odkaz: https://doaj.org/article/39bc919c3dd549608ba87f9b102ebc2e

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Interaction of the electrophilic bis(pentafluorophenyl)iodonium cation [(C6F5)2I]+ with the ambident pseudohalogenide anions [SCN]− and [CN]−

Autor: Peter Barthen, Dieter Bläser, Hermann-Josef Frohn, Georg Jansen, Briac Tobey, Markus E. Hirschberg

Publikováno v: Journal of Fluorine Chemistry. 163:28-33

The iodonium pseudohalide compounds, [(C6F5)2I][X] (X = SCN and CN) were synthesized by means of fluoride substitution in [(C6F5)2I][F] with the Lewis acidic reagents (CH3)3Si–NCS and (CH3)3Si–CN. The isolated iodonium pseudohalides are intrinsic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::595a2ba151f9d8b4f8947b2075117864
https://doi.org/10.1016/j.jfluchem.2014.04.006

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Thermoanalytical and preparative investigations of the decomposition of potassium perfluoroorganyl(fluoro)borate salts, K[RFBF3] (RF=perfluoroalkyl, -alkenyl, -alkynyl, and -aryl groups) and K[(RF)2BF2] (RF=C6F5 and C6F13)

Autor: Vadim V. Bardin, Hermann-Josef Frohn, Inna K. Shundrina

Publikováno v: Journal of Fluorine Chemistry. 157:73-78

Potassium perfluoroalkenyl(fluoro)borates, K[R F BF 3 ], (R F = CF 2 C(CF 3 ), cis -CF 3 CF CF, and cis -C 6 F 13 CF CF) decomposed at 208–225 °C ( T max , dTG). The K[R F BF 3 ] salts (R F = C 3 F 7 , C 6 F 13 , trans -CF 3 CF CF, and trans -C 4

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9324a7e2ef7891191b1a407d6072492
https://doi.org/10.1016/j.jfluchem.2013.11.006

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Thermal decomposition of 4-fluorobenzenediazonium perfluoroorganyl(fluoro)borates, [4-FC6H4N2]Y (Y=RFBF3 (RF=C6F5, C6F13, trans-C4F9CFCF, cis-C6F13CFCF, CF3CC) and (C6F13)2BF2)

Autor: Vadim V. Bardin, Hermann-Josef Frohn

Publikováno v: Journal of Fluorine Chemistry. 156:333-338

Heating of the neat salts [4-FC6H4N2][RFBF3] (RF = C6F5, C6F13, trans-C4F9CF CF, cis-C6F13CF CF, CF3C C) or in solid mixtures with NaF gives the principal product 1,4-C6F2H4 besides RFBF2 or Na[RFBF3], respectively. Thermolysis of [4-FC6H4N2][(C6F13)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37334c1bfb50f183036b4fb10efdd6d8
https://doi.org/10.1016/j.jfluchem.2013.08.001

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Preparation of first examples of RFCCIF4 molecules. A study of the fluorination of selected 1-iodoalk-1-ynes with xenon difluoride/boron trifluoride

Autor: Vadim V. Bardin, Hermann-Josef Frohn

Publikováno v: Journal of Fluorine Chemistry. 146:98-104

First examples of alk-1-yn-1-yliodine(V) molecules, CF 3 C CIF 4 and C 6 F 13 C CIF 4 , were prepared by fluorination of the corresponding 1-iodoperfluoroalk-1-ynes with XeF 2 in 1,1,1,3,3-pentafluorobutane (PFB) in the presence of BF 3 . The reactio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53c7f72e07d8bd71ed3c65ee8af13635
https://doi.org/10.1016/j.jfluchem.2013.01.006

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Two New Types of Xenon–Carbon Species: The Zwitterion, 1-(Xe+)C6F4-4-(BF3–), and the Dication, [1,4-(Xe)2C6F4]2+

Autor: Vural Bilir, Ulrich Westphal, Hermann-Josef Frohn

Publikováno v: Inorganic Chemistry. 51:11251-11258

In the 1:1 reaction of XeF(2) with 1,4-(F(2)B)(2)C(6)F(4) in 1,1,1,3,3-pentafluoropropane the insoluble zwitterion 2,3,5,6-tetrafluorophenylene-1-xenonium-4-trifluoroborate, 1-(Xe(+))C(6)F(4)-4-(BF(3)(-)), was formed as the main product (77%) along w

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0a3471a87965bb52b0b8a1ab449c22d
https://doi.org/10.1021/ic3017112

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Tris(pentafluorophenyl)borane, B(C 6 F 5 ) 3 , a Powerful, Well‐Soluble, Nonoxidizing Lewis Acid and the Weakly Coordinating Tetrakis(pentafluorophenyl)borate Anion, [B(C 6 F 5 ) 4 ] −

Autor: Hermann-Josef Frohn

Publikováno v: Efficient Preparations of Fluorine Compounds

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::816b4dca3e9111b4c7c87c14043e3e15
https://doi.org/10.1002/9781118409466.ch10

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Pentafluorophenyldifluoroborane, C 6 F 5 BF 2 , and Pentafluorophenyltrifluorosilane, C 6 F 5 SiF 3 , Versatile Reagents for Fluorine/Pentafluorophenyl Substitution Reactions in Strongly Oxidizing Hypervalent Nonmetal Fluorides

Autor: Hermann-Josef Frohn

Publikováno v: Efficient Preparations of Fluorine Compounds

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9677e82aeeb399903f768c9b36182524
https://doi.org/10.1002/9781118409466.ch11

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Perfluoroorganylxenonium(II) salts from reactions of XeF2 or [FXe][SbF6] with selected perfluorinated alk-1-yn-1-yl- and alk-1-en-1-yltrifluoroborate salts in aHF

Autor: Hermann-Josef Frohn, Vadim V. Bardin

Publikováno v: Journal of Fluorine Chemistry. 138:28-33

Xenon difluoride reacted with alkynylborate salts, K[R F C CBF 3 ], in anhydrous HF (aHF) to give alkynylxenonium salts, [R F C CXe][BF 4 ] (R F = CF 3 , C 3 F 7 , (CF 3 ) 2 CF), in 50–55% yield. Both [FXe][SbF 6 ] and K[C 3 F 7 C CBF 3 ] formed th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a702687f3d706b3d2a47fbc9a4fc0a0
https://doi.org/10.1016/j.jfluchem.2012.03.014

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