GRK 1582/1: Fluorine as a Key Element

The graduate school "Fluorine as a Key Element" offers the participating graduate students an educational program that features the introduction of fluorine into diverse chemical structures with the aim of discovering novel compounds that will have applications in catalysis, materials science as well as in pharmaceutical and biological chemistry.

Principal Investigators
Braun, Thomas Prof. Dr. (Details) (Inorganic Chemistry)

Participating external organizations

Duration of Project
Start date: 09/2009
End date: 08/2018

Research Areas
Anorganische Chemie

M. Teltewskoi, J. A. Panetier, Stuart A. Macgregor, T. Braun, Angew. Chem. 2010, 122, 4039-4043; Angew. Chem. Int. Ed. 2010, 49, 3947-3951.
"A Highly Reactive Rhodium(I)-Boryl Complex as a Useful Tool for C-H Bond Activation and Catalytic C-F Bond Borylation"

D. Breyer, T. Braun, A. Penner, Dalton Trans. 2010, 7513-7520.
"Isolation and reactivity of palladium hydrido complexes: intermediates in the hydrodefluorination of pentafluorpyridine"

T. Braun, F. Wehmeier, Eur. J. Inorg. Chem. 2011, 613-625.
"C-F Bond Activation of Highly Fluorinated Molecules at Rhodium: From Model Reactions to Catalyis"

P. Kläring, S. Pahl, T. Braun, A. Penner, Dalton Trans. 2011, 6785-6791.
"Facile oxidative addition of water at iridium: reactivity of trans-[Ir(4-C5NF4)(H)(OH)(PiPr3)2] towards CO2 and NH3"

M. Prechtl, M. Teltewskoi, A. Dimitrov, E. Kemnitz, T. Braun, Chem. Eur. J. 2011, 17, 14385-14388.
"Catalytic C-H Bond Activation at Nanoscale Lewis Acidic Aluminium Fluorides: H/D Exchange Reactions at Aromatic and Aliphatic Hydrocarbons"

D. Breyer , T. Braun, P. Kläring, Organometallics 2012, 31, 1417-1424.
"Synthesis and Reactivity of the Fluoro Complex trans-[Pd(F)(4-C5NF4)(iPr2PCH2CH2OCH3)2]: C-F Bond Formation and Catalytic C-F Bond Activation Reactions"

P. Kläring, A.-K. Jungton, T. Braun, C. Müller, Eur. J. Inorg. Chem. 2012, 1430-1436.
"Synthesis, Structure and Reactivity of Iridium Hydrido Fluorido Complexes"

D. Breyer, J. Berger, T. Braun, S. Mebs, J. Fluorine Chem. 2012, 143, 263-271.
"Nickel fluoro complexes as intermediates in catalytic cross-coupling reactions "

M. Kuehnel, D. Lentz, T. Braun, Angew. Chem. 2013, 125, 3412-3433; Angew. Chem. Int. Ed. 2013, 52, 3328-3348.
"Synthesis of Fluorinated Building Blocks by Transition-Metal-Mediated Hydrodefluorination Reactions "

M. Ahrens, G. Scholz, T. Braun, E. Kemnitz, Angew. Chem. 2013, 125, 5436-5440; Angew. Chem. Int. Ed. 2013, 52, 5328-5332.
"Catalytic Hydrodefluorination of Fluoromethanes at Room Temperature by Silylium-ion-like Surface Species "

A. L. Raza, J. Panetier, M. Teltewskoi, S. Macgregor, T. Braun, Organometallics 2013, 32, 3795-3807.
"Rhodium(I) Silyl Complexes for C–F Bond Activation Reactions of Aromatic Compounds: Experimental and Computational Studies"

L. Zámostná, M. Ahrens, T. Braun, J. Fluorine Chem. 2013, 155, 132-142.
"Catalytic hydrodefluorination of fluoroaromatics with silanes as hydrogen source at a binuclear rhodium complex: Characterization of key intermediates"

P. Kläring, T. Braun, Angew. Chem. 2013, 125, 11302-11307; Angew. Chem. Int. Ed. 2013, 52, 11096-11101.
"Insertion of CS2 into Iridium–Fluorine Bonds"

S. I. Kalläne, T. Braun, Angew. Chem. 2014, 126, 9465-9469; Angew. Chem. Int. Ed. 2014, 53, 9311-9315.
"Catalytic Borylation of SCF3-Functionalized Arenes by Rhodium(I) Boryl Complexes: Regioselective C-H Activation at the ortho-Position"

T. Ahrens, J. Kohlmann, M. Ahrens, T. Braun, Chem. Rev. 2015, 115, 931-972.
"Functionalization of Fluorinated Molecules by Transition-Metal-Mediated C-F Bond Activation to Access Fluorinated Building Blocks"

S. I. Kalläne, M. Teltewskoi, T. Braun, B. Braun, Organometallics 2015, 34, 1156-1169.
"C-H and C-F Bond Activations at a Rhodium(I) Boryl Complex: Reaction Steps for the Catalytic Borylation of Fluorinated Aromatics"

L. Zámostná, S. Sander, T. Braun, R. Laubenstein, B. Braun, R. Herrmann, P. Kläring, Dalton Trans. 2015, 44, 9450-9469.
"Synthesis and structure of rhodium(I) silyl carbonyl complexes: photochemical C-F and C-H bond activation of fluorinated aromatic compounds"

A. L. Raza, T. Braun, Chem. Sci. 2015, 6, 4255-4260.
"Consecutive C-F bond activation and C-F bond formation of heteroaromatics at rhodium: the peculiar role of FSi(OEt)3"

M. Feist, M. Ahrens, A. Siwek, T. Braun, E. Kemnitz, J. Therm. Anal. Calorim. 2015, 121, 929-935.
"Triethylsilane-loaded aluminium chlorofluoride"

J. Berger, T. Braun, R. Herrmann, B. Braun, Dalton Trans. 2015, 44, 19553-19565.
" Reactivity of platinum alkyne complexes towards N-fluorobenzenesulfonimide: formaiton of platinum compounds bearing a β-fluorovinyl ligand"

F. Liebau, T. Braun, B. Braun, J. Fluorine Chem. 2015, 180, 192-200.
"Dehydrogenation of cycloalkanes at rhodium complexes bearing fluorinated cyclopentadienyl ligands"

R. Laubenstein, M.-D. Serb, U. Englert, G. Raabe, T. Braun, B. Braun, Chem. Commun. 2016, 52, 1214-1217.
"Is it all in the hinge? A kryptoracemate and three of its alternative racemic polymorphs of an aminonitrile"

T. Ahrens, T. Braun, B. Braun, R. Herrmann, Dalton Trans. 2016, 45, 4716-4728.
"Synthesis of a rhodium(I) germyl complex: a useful tool for C-H and C-F bond activation reactions"

C. Berg, R. Laubenstein, T. Braun, B. Braun, Chem. Commun. 2016, 52, 3931-3934.
"Palladium-mediated borylation of pentafluorosulfanyl functionalized compounds: the crucial role of metal fluorido complexes"

B. Calvo, J. Wuttke, T. Braun, E. Kemnitz, ChemCatChem. 2016, 8, 1945-1950.
"Heterogeneous Catalytic Hydroarylation of Olefins at a Nanoscopic Aluminium Chlorofluoride"

H. Baumgarth, G. Meier, T. Braun, B. Braun-Cula, Eur. J. Inorg. Chem. 2016, 4565-4572.
"Rhodium and Iridium Fluorido and Bifluorido Complexes Derived from Peroxido Precursors"

T. Ahrens, M. Teltewskoi, M. Ahrens, T. Braun, R. Laubenstein, Dalton Trans. 2016, 45, 17495-17507.
"Competing reaction pathways of 3,3,3-trifluoropropene at rhodium hydrido, silyl and germyl complexes: C-F bond activation versus hydrogermylation"

A. K. Siwek, M. Ahrens, M. Feist, T. Braun, E. Kemnitz, ChemCatChem 2017, 9, 839-845.
"Activation of Chlorinated Methanes at the Surface of Nanoscopic Lewis Acidic Aluminum Fluorides"

J. Berger, T. Braun, T. Ahrens, P. Kläring, R. Laubenstein, B. Braun-Cula, Chem. Eur. J. 2017, 23, 8886-8900.
"The Versatile Behavior of Platinum Alkyne Complexes towards XeF2: Formation of Fluorovinyl and Fluorido Complexes"

G. Meißner, D. Dirican, C. Jäger, T. Braun, E. Kemnitz, Catal. Sci. Technol. 2017, 7, 3348-3354.
"Et3GeH versus Et3SiH: controlling reaction pathways in catalytic C-F bond activations at a nanoscopic aluminium chlorofluoride"

J. Kohlmann, T. Braun, R. Laubenstein, R. Herrmann, Chem. Eur. J. 2017, 23, 12218-12232.
"Suzuki-Miyaura Cross-Coupling Reactions of Highly Fluorinated Arylboronic Esters: Catalytic Studies and Stoichiometric Model Reactions on the Transmetallation Step"

G. Meißner, M. Feist, T. Braun, E. Kemnitz, J. Organomet. Chem. 2017, 847, 234-241.
"Selecive reduction of a C-Cl bond in halomethanes with Et3GeH at nanoscopic Lewis acidic Aluminium fluoride Formation of Fluorovinyl and Fluorido Complexes"

M. A. Ellwanger, S. Steinhauer, P. Golz, H. Beckers, A. Wiesner, B. Braun-Cula, T. Braun, S. Riedel, Chem. Eur. J. 2017, 23, 13501-12509.
"Taming the High Reactivity of Gold(III) Fluoride: Fluorido Gold(III) Complexes with N-Based Ligands"

J. Kohlmann, T. Braun, J. Fluorine Chem. 2017, 203, 140-145.
"Synthesis and reactivity of a cationic palladium complex as possible intermediate in a Suzuki-Miyaura cross-coupling reaction"

G. Meißner, K. Kretschmar, T. Braun, E. Kemnitz, Angew. Chem. 2017, 129, 16556-16559; Angew. Chem. Int. Ed. 2017, 56, 16338-16341.
"Consecutive Transformations of Tetrafluoropropenes: Hydrogermylation and Catalytic C−F Activation Steps at a Lewis Acidic Aluminum Fluoride"

B. Calvo, T. Braun, E. Kemnitz, ChemCatChem 2018, 10, 403-406.
"Hydrogen/Deuterium-Exchange Reactions of Methane with Aromatics and Cyclohexane Catalyzed by a Nanoscopic Aluminium Chlorofluoride"

M. Wozniak, T. Braun, M. Ahrens, B. Braun-Cula, P. Wittwer, R. Herrmann, R. Laubenstein, Organometallics 2018, 37, 821-828.
"Activation of SF6 at a Xantphos-Type Rhodium Complex"

C. P. Marshall, T. Braun, E. Kemnitz, Catal. Sci. Technol. 2018, 8, 3151-3159.
"Modifying the reactivity of a solid Lewis acid: niobium and antimony doped nanoscopic aluminum fluoride"

C. N. von Hahnmann, M. Talavera, C. Xu, T. Braun, Chem. Eur. J. 2018, 24, 11131-11138.
"Reactivity of 3,3,3-Trifluoropropyne at Rhodium Complexes: Development of Hydroboration Reactions"

M. A. Ellwanger, S. Steinhauer, P. Golz, T. Braun, S. Riedel, Angew. Chem. 2018, 130, 7328-7332; Angew. Chem. Int. Ed. 2018, 57, 7210-7214.
"Stabilization of Lewis Acidic AuF3 as an N-Heterocyclic Carbene Complex: Preparation and Characterization of [AuF3(SIMes)]"

A. L. Raza, M. F. Kuehnel, M. Talavera, M. Teltewskoi, M. Ahrens, P. Kläring, T. Braun, D. Lentz, J. Fluorine Chem. 2018, 214, 80-85.
"Reactivity of rhodium hydrido and silyl complexes towards 1,1-difluoroallene"

M. A. Ellwanger, C. von Randow, S. Steinhauer, Y. Zhou, A. Wiesner, H. Beckers, T. Braun, S. Riedel, Chem. Commun. 2018, 54, 9301-9304.
"Tuning the Lewis acidity of difluorido gold(III) complexes: the synthesis of [AuClF2(SIMes)] and [AuF2(OTeF5)(SIMes)]"

B. Calvo, C. P. Marshall, T. Krahl, J. Kröhnert, A. Trunschke, G. Scholz, T. Braun, E. Kemnitz, Dalton Trans. 2018, 47, 16461-16473.
"Comparative study of the strongest Lewis acids known: ACF and HS-AlF3"

Last updated on 2021-08-01 at 15:32