Formation of multifunctional ligands by nucleophilic addition of alcohols and thiols to the alkyne groups in compound C5H5FeC5H4Ctriple bond; length of mdashCSCtriple bond; length of mdashCH: Reactivity studies

The multifunctional ligands [(Z)–FcCtriple bond; length of mdashCSC(H)double bond; length as m-dashC(H)XR] [X = O, R = Me (2a); X = O, R = Et (2b); X = S, R = Ph (3); X = S, R = C6F5 (5)] and [(Z,Z)–Fc(SR)Cdouble bond; length as m-dashC(H)SC(H)double bond; length as m-dashC(H)SR] [R = Ph (4), C6F5 (6)] have been prepared through hydroalkoxylation and hydrothiolation processes of the alkyne groups in the compound FcCtriple bond; length of mdashCSCtriple bond; length of mdashCH 1. Reactions between compound 3 and the carbonyl metals Co2(CO)8, Os3(CO)10(NCMe)2 and Fe2(CO)9 have allowed the synthesis of the polynuclear compounds [(Z)-{Co2(CO)6}(μ-η2-FcCCSC(H)double bond; length as m-dashC(H)SPh)] 9, [(Z)-Os3(CO)9(μ-CO){μ3-η2-FcCCSC(H)double bond; length as m-dashC(H)(SPh)}] 10 and [(Z)-{Fe3(CO)9}[μ3,η3-(CCS)-FcCCSC(H)double bond; length as m-dashC(H)(SPh)] 11. All the compounds have been characterized by elemental analysis, 1H and 13C{1H} NMR spectroscopy, mass spectrometry and the crystal structure of compounds [(Z)-FcCtriple bond; length of mdashCSC(H)double bond; length as m-dashC(H)OMe] 2a and [{Co2(CO)6}2(μ-η2:η2-FcCCSCCSiMe3)] 7 have been solved by X ray diffraction analysis.