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Browsing by Author "Petronilho, Ana"
Now showing items 1-10 of 10
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Donnelly, Kate F. ; Petronilho, Ana ; Albrecht, Martin (Royal Society of Chemistry, 2013-02-11)Triazolylidenes have rapidly emerged as a powerful subclass of N-heterocyclic carbene ligands for transition metals. They are readily available through regioselective [2 + 3] cycloaddition of alkynes and azides and subsequent ...
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Petronilho, Ana ; Woods, James A. ; Bernhard, Stefan ; Albrecht, Martin (Wiley, 2014-02)Two new diiridium–triazolylidene complexes were prepared as bimetallic analogues of established mononuclear water oxidation catalysts. Both complexes are efficient catalyst precursors in the presence of cerium ammonium ...
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Woods, James A. ; Lalrempuia, Ralte ; Petronilho, Ana ; Müller-Bunz, Helge ; Albrecht, Martin ; et al. (Royal Society of Chemistry, 2014-07-01)Iridium complexes of Cp* and mesoionic carbene ligands were synthesized and evaluated as potential water oxidation catalysts using cerium(IV) ammonium nitrate as a chemical oxidant. Performance was evaluated by turnover ...
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Canseco-Gonzalez, Daniel ; Petronilho, Ana ; Müller-Bunz, Helge ; Albrecht, Martin ; et al. (American Chemical Society, 2013-09-04)A series of gold(I) complexes [AuCl(trz)] were synthesized that contain 1,2,3-triazolylidene (trz) ligands with variable wingtip groups. In the presence of AgBF4, these complexes undergo ligand redistribution to yield ...
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Petronilho, Ana ; Woods, James A. ; Müller-Bunz, Helge ; Bernhard, Stefan ; Albrecht, Martin (Wiley, 2014-11-24)Metalation of a C2-methylated pyridylimidazolium salt with [IrCp*Cl2]2 affords either an ylidic complex, resulting from C(sp3)[BOND]H bond activation of the C2-bound CH3 group if the metalation is performed in the presence ...
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Petronilho, Ana ; Müller-Bunz, Helge ; Albrecht, Martin (Elsevier, 2015-01)Imidazo[1,2-a]pyridine consisting of a pyridine fused to an imidazolium salt at the imidazolium N1–C2 bond and hence protected from forming normal imidazole-2-ylidene complexes undergoes selective activation of the C5–H ...
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Petronilho, Ana ; Llobet, Antoni ; Albrecht, Martin (American Chemical Society, 2014-11-21)Iridium(III) complexes containing a bidentate spectator ligand have emerged as powerful catalyst precursors for water oxidation. Here we investigate the initial steps of the transformation at the iridium center when using ...
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Petronilho, Ana ; Müller-Bunz, Helge ; Albrecht, Martin (Royal Society of Chemistry, 2012-07-04)Reaction of CsOH with triazolium salts affords mesoionic compounds containing an exocyclic oxygen; the same product is obtained by reaction of the corresponding Cu(I) triazolylidenes with CsOH and represents an unusual ...
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Wei, Yingfei ; Petronilho, Ana ; Müller-Bunz, Helge ; Albrecht, Martin (American Chemical Society, 2014-07-28)A set of triazolylidene (trz) nickel(II) complexes [NiCpX(trz)] was synthesized by a direct metalation of the corresponding triazolium salt with nickelocene, NiCp2. While at short reaction times and in the presence of a ...
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Petronilho, Ana ; Rahman, Mahfujur ; Woods, James A. ; Al-Sayyed, Haris ; Müller-Bunz, Helge ; MacElroy, J. M. Don ; Bernhard, Stefan ; Albrecht, Martin (Royal Society of Chemistry, 2012-10-10)The complex IrCl2(Cp*)(trz) (trz = triazolylidene), 2, was prepared from readily available 1,3-dimethyl-4-phenyl-1,2,3-triazolium salt. Under basic conditions, the C-bound phenyl group readily cyclometalates, while under ...
Now showing items 1-10 of 10
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