Search Results - "Mark R. Ringenberg"

Redox-Active Ligands in Catalysis by Praneeth, Vijayendran K. K., Ringenberg, Mark R., Ward, Thomas R.

“…Nature’s use of redox‐active moieties combined with 3d transition‐metal ions is a powerful strategy to promote multi‐electron catalytic reactions. The ability…”
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Exchange coupling and single molecule magnetism in redox-active tetraoxolene-bridged dilanthanide complexes by Zhang, Peng, Perfetti, Mauro, Kern, Michal, Hallmen, Philipp P, Ungur, Liviu, Lenz, Samuel, Ringenberg, Mark R, Frey, Wolfgang, Stoll, Hermann, Rauhut, Guntram, van Slageren, Joris

“…Tetraoxolene radical-bridged lanthanide SMM systems were prepared for the first time by reduction of the respective neutral compounds. Magnetic measurements…”
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Mesoionic Imines (MIIs): Strong Donors and Versatile Ligands for Transition Metals and Main Group Substrates by Rudolf, Richard, Neuman, Nicolás I., Walter, Robert R. M., Ringenberg, Mark. R., Sarkar, Biprajit

“…We report the synthesis and the reactivity of 1,2,3‐triazolin‐5‐imine type mesoionic imines (MIIs). The MIIs are accessible by a base‐mediated cycloaddition…”
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Merging the best of two worlds: artificial metalloenzymes for enantioselective catalysis by Ringenberg, Mark R, Ward, Thomas R

“…Artificial metalloenzymes result from combining a catalytically active organometallic moiety with a macromolecular host. The resulting hybrid catalysts combine…”
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Redox Induced Configurational Isomerization of Bisphosphine–Tricarbonyliron(I) Complexes and the Difference a Ferrocene Makes by Ringenberg, Mark R, Wittkamp, Florian, Apfel, Ulf-Peter, Kaim, Wolfgang

“…The tricarbonyliron (TCFe) complexes Fe­(CO)3(dppf) and Fe­(CO)3(dppp), where dppf = 1,1′-bis­(diphenylphosphino)­ferrocene and dppp =…”
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Cooperativity‐Driven Reactivity of a Dinuclear Copper Dimethylglyoxime Complex by Petrikat, Raphael I., Steiger, Sophie T., Barani, Elham, Boden, Pit J., Huber, Maximilian E., Ringenberg, Mark R., Niedner‐Schatteburg, Gereon, Fink, Karin, Becker, Sabine

“…In this report, we present the dinuclear copper(II) dimethylglyoxime (H2dmg) complex [Cu2(H2dmg)(Hdmg)(dmg)]+ (1), which, in contrast to its mononuclear…”
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Polyfunctional Imidazolium Aryloxide Betaine/Lewis Acid Catalysts as Tools for the Asymmetric Synthesis of Disfavored Diastereomers by Willig, Felix, Lang, Johannes, Hans, Andreas C, Ringenberg, Mark R, Pfeffer, Daniel, Frey, Wolfgang, Peters, René

“…Enzymes are Nature’s polyfunctional catalysts tailor-made for specific biochemical synthetic transformations, which often proceed with almost perfect…”
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Control of Molecular Packing in Crystal and Electron Communication of Two Ferrocenyl Moieties across Chiral Isomannide or Isosorbide Bridge by Zullo, Valerio, Guo, Tianao, Iuliano, Anna, Ringenberg, Mark R

“…Intramolecular electronic communication between electrochemically active groups connected by a bridging moiety can be modified through small changes in the…”
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Redox-Switched Oxidation of Dihydrogen Using a Non-Innocent Ligand by Ringenberg, Mark R, Kokatam, Swarna Latha, Heiden, Zachariah M, Rauchfuss, Thomas B

“…Organometallic complexes containing non-innocent ligands of the type Cp*Ir( t BAFPh)(1), where H2 t BAFPh is…”
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Beyond Common Metal-Metal Bonds, κ 3 -Bis(donor)ferrocenyl→Transition-Metal Interactions by Ringenberg, Mark R

“…Ligands with 1,1'-bis(donor)ferrocene motif are capable of a wide range of binding modes, including the trans chelation mode in which there is a Fe-M…”
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Beyond Common Metal–Metal Bonds, κ3‐Bis(donor)ferrocenyl→Transition‐Metal Interactions by Ringenberg, Mark R.

“…Ligands with 1,1′‐bis(donor)ferrocene motif are capable of a wide range of binding modes, including the trans chelation mode in which there is a Fe−M…”
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Organobimetallic Nickel‐Iron Complexes, Valence Tautomer or Charge Localized Ferrocene Ligands Upon Oxidation by Ringenberg, Mark R., Schnierle, Marc, Sondermann, Christina

“…[[CpNi(dRpf)]+ (dRpf=1,1’‐bis(di‐R‐phosphino)ferrocene, R=phenyl (dppf) [1]+, iso‐propyl (dippf) [2]+, and cyclohexyl (dcpf) [3]+),…”
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[(η6-p-Cymene)[3-(pyrid-2-yl)-1,2,4,5-tetrazine]chlororuthenium(II)]+, Redox Noninnocence and Dienophile Addition to Coordinated Tetrazine by Schnierle, Marc, Leimkühler, Marie, Ringenberg, Mark R

“…The bidentate ligand 3-(pyrid-2-yl)-1,2,4,5-tetrazine (TzPy) coordinated in the complex [CyRuCl­(TzPy)]­PF6 ([1]+; Cy = η6-p-cymene) shows noninnocent behavior…”
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Anodic Mechanism of 1,1′‐Bis(diphenylphosphino)ferrocenedicarbonylnickel Determined by Low‐Temperature Spectroelectrochemistry by Ringenberg, Mark R., Döttinger, Florian

“…[Ni(CO)2(dppf)] [1] {dppf = 1,1′‐bis(diphenylphosphino)ferrocene} was made by reductive carbonylation of [NiCl2(dppf)] with [Fe(CO)5], similar to our recent…”
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Reductive Carbonylation of [NiCl2(dippf)] (dippf = 1,1′-Bis(diisopropylphosphino)ferrocene) with Fe(CO)5 and (Spectro)electrochemistry of the Resulting [Ni(CO)2(dippf)] by Döttinger, Florian, Ringenberg, Mark R

“…[Ni­(CO)2(dippf)] [1] (dippf = 1,1′-bis­(diisopropylphosphino)­ferrocene) was synthesized from [NiCl2(dippf)] and [Fe­(CO)5] at elevated temperature/pressure…”
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Electrochemical Reduction Mechanism of [(η5‑C5H5)Fe(dppf)(CO)]+ (dppf = 1,1′-Bis(diphenylphosphino)ferrocene) by Pan, Yixian, Schnierle, Marc, Auweiler, Daniel, Ringenberg, Mark R

“…The complex [CpFe­(dppf)­(CO)]­[B­(ArF)4] [1]­[B­(ArF)4] (Cp = cyclopentadienyl, dppf = 1,1′-bis­(diphenylphosphino)­ferrocene, and [B­(ArF)4]− =…”
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Artificial metalloenzymes for olefin metathesis based on the biotin-(strept)avidin technology by Lo, Cheikh, Ringenberg, Mark R, Gnandt, David, Wilson, Yvonne, Ward, Thomas R

“…Incorporation of a biotinylated Hoveyda-Grubbs catalyst within (strept)avidin affords artificial metalloenzymes for the ring-closing metathesis of N-tosyl…”
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(Benz-)imidazolin-2-ylidene-benzimidazolatonickel(II) Chelates: Syntheses, Structures, and Tuning of Noninnocent Chelate Ligand Behavior by Kureja, Kunal, Bruhn, Clemens, Ringenberg, Mark R, Siemeling, Ulrich

“…The deprotonation of 1-(1H-benzimidazol-2-yl)-3-methylbenzimidazolium hexafluorophosphate (2 MeH2[PF6]) and 1-(1H-benzimidazol-2-yl)-3-isopropylbenzimidazolium…”
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How Solid Surfaces Control Stability and Interactions of Supported Cationic Cu I (dppf) Complexes─A Solid-State NMR Study by Schnierle, Marc, Klostermann, Sina, Kaya, Elif, Li, Zheng, Dittmann, Daniel, Rieg, Carolin, Estes, Deven P, Kästner, Johannes, Ringenberg, Mark R, Dyballa, Michael

“…Organometallic complexes are frequently deposited on solid surfaces, but little is known about how the resulting complex-solid interactions alter their…”
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(Spectro)Electrochemistry of 3‐(Pyrid‐2‐yl)‐s‐Tetrazine‐ and 1,2‐ (Dihydro)pyridazine Tricarbonylrhenium(I)chloride by Schnierle, Marc, Winkler, Mario, Filippou, Vasileios, Slageren, Joris, Ringenberg, Mark R.

“…The electrochemistry and spectroelectrochemistry (SEC) of the three [ReCl(CO)3(N N)], N N=3‐(pyrid‐2‐yl)‐1,2,4,5‐tetrazine [1],…”
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