148442 20250117162507.0 doi 10.1002/chem.201804013 sideral 109087 ART-2018-109087 eng Arnal, L. A Cyclometalated N-Heterocyclic Carbene: The Wings of the First Pt2(II, II) Butterfly Oxidized by CHI3 2018 The X-ray study on a single crystal of the butterfly-like complex [{Pt(C^C*)(µ-pz)}2] (1), containing a cyclometalated N-heterocyclic carbene ligand as wings (HC^C*=1-(4-(ethoxycarbonyl)phenyl)-3-methyl-1H-imidazol-2-ylidene), showed three molecules in the asymmetric unit with intermetallic separations (Å) of 3.2294(4) (1A), 3.2834(4) (1B), and 3.1208(6) (1C). From the reaction of 1 with excess of CHI3 in the air and the sunlight, complex [{Pt(C^C*)(µ-pz)I)}2] (2) (dPt-Pt=2.6079(2) Å) was obtained as the major product, while [IPt(C^C*)(µ-pz)2Pt(C^C*)CHI2] (3) (dPt-Pt=2.6324(3) Å) was obtained as the major product under argon atmosphere in the dark. Experimental and theoretical investigations showed that an easily accessible radical-like mechanism operates under thermal conditions, with dioxygen acting as an efficient radical (R.) scavenger. The oxidation of a Pt2(II, II) “butterfly” by CHI3 to give metal-metal bonded Pt2(III, III) compounds is described now for the first time. info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 5.16 2018 CHEMISTRY, MULTIDISCIPLINARY 36 / 172 = 0.209 2018 Q1 T1 1.842 2018 Catalysis 2018 Q1 Organic Chemistry 2018 Q1 Chemistry (miscellaneous) 2018 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Fuertes, S. (orcid)0000-0003-1812-3175 Martín, A. Universidad de Zaragoza (orcid)0000-0002-4808-574X Baya, M. Universidad de Zaragoza (orcid)0000-0002-2492-625X Sicilia, V. Universidad de Zaragoza (orcid)0000-0002-0257-0483 2010 760 Universidad de Zaragoza Dpto. Química Inorgánica Área Química Inorgánica 24, 70 (2018), 18743-18748 Chemistry (Weinh.) Chemistry - A European Journal 0947-6539 887262 http://zaguan.unizar.es/record/148442/files/texto_completo.pdf Versión publicada 2720234 http://zaguan.unizar.es/record/148442/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:148442 articulos driver 2025-01-17-14:35:50 ARTICLE