doi:10.1021/acs.inorgchem.4c00596engBuil, María L.Esteruelas, Miguel A.Oñate, EnriquePicazo, Nieves R.Unequivocal characterization of an osmium complex with a terminal sulfide ligand and its transformation into hydrosulfide and methylsulfideART-2024-138073Deprotonation of the thioamidate group of [OsH{κ2-N,S-[NHC(CH3)S]}(≡CPh)(IPr)(PiPr3)]OTf [1; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazolylidene; OTf = CF3SO3] results in the release of acetonitrile and formation of the terminal sulfide complex OsH(S)(≡CPh)(IPr)(PiPr3) (2), which has been transformed into the hydrosulfide [OsH(SH)(≡CPh)(IPr)(PiPr3)]OTf (3) and the methylsulfide [OsH(SMe)(≡CPh)(IPr)(PiPr3)]OTf (4) through protonation and methylation reactions, respectively. The structure, spectroscopic characteristics, and reactivity of these compounds are compared. Reactions of 3 and 4 with 2-hydroxypyridine and 2-mercaptopyridine afford [OsH{κ2-X,N-[X-py]}(≡CPh)(IPr)(PiPr3)]OTf [X = O (5), S(6)].2024http://zaguan.unizar.es/record/13341310.1021/acs.inorgchem.4c00596http://zaguan.unizar.es/record/133413oai:zaguan.unizar.es:133413info:eu-repo/grantAgreement/ES/DGA/E06-23Rinfo:eu-repo/grantAgreement/ES/MICINN-AEI/10.13039/501100011033info:eu-repo/grantAgreement/ES/MICINN/PID2020-115286GB-I00/AEI/10.13039/501100011033info:eu-repo/grantAgreement/ES/MICINN/RED2022-134287-TInorganic Chemistry 63, 13 (2024), 4 pp.byhttps://creativecommons.org/licenses/by/4.0/deed.esinfo:eu-repo/semantics/openAccess