| 摘要 |
Novel catalysts of the general formula MXaYb, in which M is Pt, Pd, Rh, Ru, Os or Ir, X is a triazene, tetrazene, tetrazadiene or pentazadiene ligand, Y is a ligand selected from Cl, Br, I, NH3, P(C2H5)3, P(C6H5)3 H, CO, 1,5-cyclooctadiene, pyridine, bipyridine, acetate, acetylacetonate, phenylnitrile, ethylenediamine, acetonitrile, 2,5-norbornadiene, nitrate, nitrite, H2O, benzene, diphenylphosphinoethane and 1,3-divinyl-1,1,3,3-tetramethyldisiloxane, a is 1, 2, 3 or 4 and b is 0 or an integer from 1 to 6, are described. The catalysts promote the addition of Si-bonded hydrogen onto an aliphatic multiple bond, in which the catalysts are activated by heating at temperatures of 50 to 250.degree.C, by irradiation with light, by addition of Bronsted acids and/or by addition of acidforming agents. The catalysts are used in addition crosslinking organopolysiloxane compositions and for the reaction of organosilicon compounds containing Si-bonded hydrogen atoms with organic compounds containing aliphatic multiple bonds. |
