Formation of multifunctional ligands by nucleophilic addition of alcohols and thiols to the alkyne groups in compound C5H5FeC5H4CCSCCH: Reactivity studies

The multifunctional ligands [(Z)-FcC CSC(H)=C(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)C=C(H)SC(H)=C(H)SR] [R = Ph (4), C6F5 (6)] have been prepared through hydroalkoxylation and hydrothiolation processes of the alkyne groups in the compound FcC CSC CH 1. Reactions between compound 3 and the carbonyl metals Co-2(CO)(8), Os-3(CO)(10)(NCMe)(2) and Fe-2(CO)(9) have allowed the synthesis of the polynuclear compounds [(Z)-{Co-2(CO)(6)}(mu-eta(2)-FcCCSC(H)=C(H)SPh)] 9, [(Z)-Os-3(CO)(9)(mu-CO){mu(3)-eta(2)-FcCCSC(H)=C(H)(SPh)}] 10 and [(Z)-{Fe-3(CO)(9)}[mu(3), eta(3)-(CCS)-FcCCSC(H)=C(H)(SPh)] 11. All the compounds have been characterized by elemental analysis, H-1 and C-13{H-1} NMR spectroscopy, mass spectrometry and the crystal structure of compounds [(Z)-FcC CSC(H) C(H)OMe] 2a and [{Co-2(CO)(6)}(2)(mu-eta(2):eta(2)-FcCCSCCSiMe(3))] 7 have been solved by X ray diffraction analysis. (C) 2009 Elsevier B.V. All rights reserved.