The first alkynethiolate derivatives of bis(substituted cyclopenta-dienyl)titanium(IV) and their role in the synthesis of heterobimetallic compounds. Crystal structures of [Ti(eta(5)-C5H4SiMe3)(2)(SC CBut)(2)] and [(eta(5)-C5H4SiMe3)(SC CBut)Ti(mu-e

摘要

The first thioalkyne derivatives of functionalised titanocene of formula [Ti(eta(5)-C5H4R')(eta(5)-C5H4R")(SC=CR)(2)] (R = Bu-t, R' = R" = SiMe3 1a; R = Ph, R' = R" = SiMe3 1b; R = Bu-t, R' = SiMe3, R" = PPh2 2a; R = Bu-t, R' = R" = PPh2 3a) have been prepared by reaction of [Ti(eta(5)-C5H4R')(eta(5)-C5H4R")Cl-2] and LiSC=CR in diethyl ether. Complexes 1a and 2a have been used as precursors in the synthesis of Ti-M (M = d(6) or d(8) metal) heteronuclear complexes showing different co-ordination modes. All compounds have been characterised by elemental analysis and H-1, P-31, F-19 and C-13 NMR and infrared spectroscopy. The crystal structures of two complexes have been solved. [References: 87]