| 摘要 |
A hydrosilation process is disclosed for the reaction between silicon-hydrogen bonds and compounds having aliphatic carbon atoms linked by multiple bonds using as catalysts novel platinum-, rhodium-, or iridium-nitrogen complex compounds of the following classes: (a) monometallic complexes: (L)PtX2(Y), (L)RhX(W)2, and (L)IrX(W)2 (b) bimetallic complexes: (L)(PtX2)2(Y)2, and (L)[RhX(CO)2]2, (c) ionic complexes: (L)PtX2(Y)(Z), and (d) reduced forms of monometallic complexes having the formulae: (1) H[(PNZ)PtX2(Q)]2, (2) [(PNZ)PtX2(Q)]2, and (3) [H(PNZ)PtCl2(C2H4)]3PtCl3 wherein L is a single or fused heterocyclic ligand comprising at least one 5- or 6-member ring, said ligand having 2 to 4 nitrogen ring atoms in the same ring, Y is an uncharged monodentate ligand that fills only one coordination position of the platinum atom, W is an uncharged ligand that fills one or two coordination positions of the metal atom, and X is independently Cl, Br, I, CN, or SCN, Z is HCl, HBr, or silver trifluoromethane-sulfonate, Q is an aliphatically unsaturated olefin ligand of 2 to 25 carbon atoms, and PNZ is phenazine. Preparation of the novel catalysts is described. The cured compositions are useful in the preparation of molded articles.
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