| 摘要 |
The invention relates to a silicon composition which can be crosslinked by means of dehydrogenative condensation between reactive units =SiH and =SiOH, using a catalytic complex of iridium. The aforementioned catalytic complex of iridium can be obtained by reacting: (i) a complex of iridium having formula (I): (IrSigmaSigma'2)n, wherein: A/ n is 1 or 2 and, if n is 1, S is a radical ligand LX with 3 electrons, but, if n is 2, S is a radical ligand X with 1 electron which acts like 3-electron ligand LX with the two iridium atoms; and B/ S', which may be identical or different, but are preferably identical, each represent a ligand L with 2 electrons; and (ii) a ligand Sd which is selected from R2S, R2O, NR3, carbenes and organophosphorous ligands. |
