Abstract
full title:The mechanism of isomerisation of the C=C bond in ethenethiolato ligands co-ordinated to molybdenum and tungsten. The molecular structures of (E)-exo-[W{?3-SC(CF3)=C(CF3)H}(CF 3C=CCF3)(?5-C5H 5)] and (Z)-endo-[W{?3-SC(CF3)=C(CF 3)H}(CF3C=CCF3)(?5-C 5H5)] Thermolysis of the ?2-vinyl complex [W{?3- C(CF3)C(CF3)SBut}(CF3C= CCF3)(?5-C5H5)] gives the ?3-ethenethiolato derivative (E)-exo-[W{?3- SC(CF3)=C(CF3)H}(CF3C=CCF 3)(?5-C5H5)], which undergoes concomitant exo ? endo and E ? Z isomerisation to give (Z)-endo-[W{?3-SC(CF3)=C(CF3)H}(CF 3C=CCF3)(?5-C5H 5)], thus providing evidence for a ring-flip mechanism in metal-promoted alkene isomerisations.
Original language | English |
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Pages (from-to) | 1526-1528 |
Number of pages | 3 |
Journal | Journal of the Chemical Society, Chemical Communications |
Issue number | 20 |
DOIs | |
Publication status | Published - 1987 |