Ruthenium containing hydrosilylation catalysts and compositions containing the catalysts

A composition comprising:

• (A) a product prepared by a method comprising
• (1) combining ingredients comprising a Ru precursor and a ligand, thereby preparing a reaction product, where
• the Ru precursor is a ruthenium metal compound comprising a monovalent hydrocarbon group, and
• the ligand has general formula (i), where
• general formula (i) is
• where subscript x is an integer from 0 to 1 depending on the valency of Q1, Q1 is nitrogen, A2, A3, A4, A5, and A6 are each independently selected from a monovalent organic group, hydrogen, a halogen atom, and an inorganic heteroatom containing group, each A1 is independently selected from a monovalent organic group, hydrogen, a halogen atom, and an inorganic heteroatom containing group with the proviso that when A6 is Me, then A1 is not phenylthiomethylether, with the proviso that A2 and A3 may bond together to form a ring structure, with the proviso that A3 and A4 may bond together to form a ring structure, with the proviso that A4 and A5 may bond together to form a ring structure, with the proviso that A5 and A6 may bond together to form a ring structure;
• and
• (2) combining the reaction product with a reducing agent;
• and
• (B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction;
• and
• (c) a polyorganohydrogensiloxane.

A composition comprising:

• (A) a product prepared by a method comprising
• (1) combining ingredients comprising a Ru precursor and a ligand, thereby preparing a reaction product, where
• the Ru precursor is a ruthenium metal compound comprising a monovalent hydrocarbon group, and
• the ligand has general formula (i), where
• general formula (i) is
• where subscript x is an integer from 0 to 1 depending on the valency of Q1, Q1 is nitrogen, A2, A3, A4, A5, and A6 are each independently selected from a monovalent organic group, hydrogen, a halogen atom, and an inorganic heteroatom containing group, each A1 is independently selected from a monovalent organic group, hydrogen, a halogen atom, and an inorganic heteroatom containing group with the proviso that when A6 is Me, then A1 is not phenylthiomethylether, with the proviso that A2 and A3 may bond together to form a ring structure, with the proviso that A3 and A4 may bond together to form a ring structure, with the proviso that A4 and A5 may bond together to form a ring structure, with the proviso that A5 and A6 may bond together to form a ring structure;
• and
• (2) combining the reaction product with a reducing agent;
• (B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction;
• and
• (C) a silane of formula R4eSiHf, where subscript e is 0, 1, 2, or 3;
• subscript f is 1, 2, 3, or 4, with the proviso that a sum of (e+f) is 4, and each R4 is independently a halogen atom or a monovalent organic group.

A composition comprising:

• (A) a product prepared by a method comprising
• (1) combining ingredients comprising an Ru precursor and a ligand, thereby preparing a reaction product, where
• the Ru precursor is a ruthenium metal compound comprising a monovalent hydrocarbon group, and
• the ligand has general formula (i)
• where subscript x is an integer from 0 to 1 depending on the valency of Q1, Q1 is nitrogen, A2, A3, A4, A5, and A6 are each independently selected from a monovalent organic group, hydrogen, a halogen atom, and an inorganic heteroatom containing group, each A1 is independently selected from a monovalent organic group, hydrogen, a halogen atom, and an inorganic heteroatom containing group with the proviso that when A6 is Me, then A1 is not phenylthiomethylether, with the proviso that A2 and A3 may bond together to form a ring structure, with the proviso that A3 and A4 may bond together to form a ring structure, with the proviso that A4 and A5 may bond together to form a ring structure, with the proviso that A5 and A6 may bond together to form a ring structure;
• and
• (2) combining the reaction product with an ionic activator;
• (B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction;
• and
• (C) a silane of formula R4eSiHf, where subscript e is 0, 1, 2, or 3;
• subscript f is 1, 2, 3, or 4, with the proviso that a sum of (e+f) is 4, and each R4 is independently a halogen atom or a monovalent organic group.