2017-12-292017-12-292010-11-04Roselló Merino, M., Díez, J. y Conejero Iglesias, S. (2010). A simple, general route to 2-pyridylidene transition metal complexes. Chemical Communications, 46 (48), 9247-9249.1359-7345 (impreso)http://hdl.handle.net/11441/68072Pyridinium 2-carboxylates decompose thermally in the presence of a variety of late transition metal precursors to yield the corresponding 2-pyridylidene-like complexes. The mild reaction conditions and structural diversity that can be generated in the heterocyclic ring make this method an attractive alternative for the synthesis of 2-pyridylidene complexes. IR spectra of the Ir(I) carbonyl compounds [IrCl(NHC)(CO)2] indicate that these N-heterocyclic carbene ligands are among the strongest σ-electron donors.application/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/N-heterocyclic carbenesNitrogenC-H activationPyridinium saltsNMR spectroscopyX-ray crystallographyElectron donorsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.1039/C0CC03935G