abstract |
The invention relates to compounds of the general formulas Ia or Ib, wherein the radicals have the meanings defined in the description and the claims, the use of the compounds according to the invention as precursors for functionalized carbene ligands for the preparation of metal complexes, metal complexes containing the corresponding carbene ligands, a process for the preparation of metal complexes according to the invention and the use of the metal complexes according to the invention. |