152051 20251219150009.0 doi 10.1021/acs.inorgchem.1c02893 sideral 126829 ART-2021-126829 eng Buil, M.L. Universidad de Zaragoza (orcid)0000-0002-3284-1053 Alternative Conceptual Approach to the Design of Bifunctional Catalysts: An Osmium Germylene System for the Dehydrogenation of Formic Acid 2021 Access copy available to the general public Unrestricted The reaction of the hexahydride OsH6(PiPr3)2 with a P, Ge, P-germylene-diphosphine affords an osmium tetrahydride derivative bearing a Ge, P-chelate, which arises from the hydrogenolysis of a P-C(sp3) bond. This Os(IV)-Ge(II) compound is a pioneering example of a bifunctional catalyst based on the coordination of a s-donor acid, which is active in the dehydrogenation of formic acid to H2 and CO2. The kinetics of the dehydrogenation, the characterization of the resting state of the catalysis, and DFT calculations point out that the hydrogen formation (the fast stage) exclusively occurs on the coordination sphere of the basic metal center, whereas both the metal center and the s-donor Lewis acid cooperatively participate in the CO2 release (the rate-determining step). During the process, the formate group pivots around the germanium to approach its hydrogen atom to the osmium center, which allows its transfer to the metal and the CO2 release. info:eu-repo/grantAgreement/ES/DGA/FEDER E06-20R info:eu-repo/grantAgreement/ES/DGA/LMP148-18 info:eu-repo/grantAgreement/ES/MICINN/PID2020-115286GB-I00/AEI/10.13039/501100011033 info:eu-repo/grantAgreement/ES/MICINN/RED2018-102387-T info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 5.436 2021 CHEMISTRY, INORGANIC & NUCLEAR 5 / 46 = 0.109 2021 Q1 T1 1.121 2021 Inorganic Chemistry 2021 Q1 Chemistry (miscellaneous) 2021 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Cabeza, J.A. Esteruelas, M.A. (orcid)0000-0002-4829-7590 Izquierdo, S. Universidad de Zaragoza (orcid)0000-0002-6608-1910 Laglera-Gándara, C.J. Iglesias Nicasio, A. Oñate, E. (orcid)0000-0003-2094-719X 2010 760 Universidad de Zaragoza Dpto. Química Inorgánica Área Química Inorgánica 60, 21 (2021), 16860-16870 Inorg. chem. Inorganic Chemistry 0020-1669 2579837 http://zaguan.unizar.es/record/152051/files/texto_completo.pdf Versión publicada 2730837 http://zaguan.unizar.es/record/152051/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:152051 articulos driver 2025-12-19-14:58:11 ARTICLE