Patent ID: 6812306
Filing Date: 2004-11-02
Classification: C07F,C08F

Abstract:
A metal compound of the formula I, where the variables are defined as follows:M is Ni in the oxidation state +II; Nu1, Nu2 are each P, E is andE1, is selected from among C, Si and Ge; R1 to R6 are selected independently from among hydrogen, C1-C8-alkyl, substituted or unsubstituted, C2-C8-alkenyl, substituted or unsubstituted, having from one to 4 isolated or conjugated double bonds; C3-C12-cycloalkyl, substituted or unsubstituted, C7-C13-aralkyl, C6-C14-aryl, unsubstituted or monosubstituted or polysubstituted by identical or different substituents selected from among C1-C8-alkyl, substituted or unsubstituted, C3-C12-cycloalkyl, C7-C13-aralkyl, C6-C14-aryl, halogen, C1-C6-alkoxy, substituted or unsubstituted, C6-C14-aryloxy, SiR18R19R20 and Oâ€”SiR18R19R20, where R18-R20 are selected from among hydrogen, C1-C8-alkyl, C3-C12-cycloalkyl, C7-C13-aralkyl and C6-C14-aryl; five- to six-membered nitrogen-containing heteroaryl radicals, unsubstituted or monosubstituted or polysubstituted by identical or different substituents selected from among C1-C8-alkyl, substituted or unsubstituted, C3-C12-cycloalkyl, C7-C13-aralkyl, C6-C14-aryl, halogen, C1-C6-alkoxy, C6-C14-aryloxy, SiR18R19R20 and Oâ€”SiR18R19R20, where R18-R20 are selected from among hydrogen, C1-C8-alkyl, C3-C12-cycloalkyl, C7-C13-aralkyl and C6-C14-aryl; where adjacent radicals R1 to R6 together with E may be joined to form a saturated or olefinically unsaturated 5- to 12-membered ring; A1, A3 are selected from among Câ€”R15, Câ€”R16, Siâ€”R15, Siâ€”R16 and N, A2 is selected from among Câ€”R17, Siâ€”R17 and N, where not more than one Aj is a nitrogen atom and j=1,2,3; R13 to R17 are selected from among hydrogen, C1-C8-alkyl, substituted or unsubstituted, C2-C8-alkenyl, substituted or unsubstituted, having from one to 4 isolated or conjugated double bonds; C3-C12-cycloalkyl, substituted or unsubstituted, C7-C13-aralkyl, C6-C14-aryl, unsubstituted or monosubstituted or polysubstituted by identical or different substituents selected from among C1-C8-alkyl, substituted or unsubstituted, C3-C12-cycloalkyl, C7-C13-aralkyl, C6-C14-aryl, halogen, C1-C6-alkoxy, C6-C14-aryloxy, SiR18R19R20 and Oâ€”SiR18R19R20, where R18-R20 are selected from among hydrogen, C1-C8-alkyl, C3-C12-cycloalkyl, C7-C13-aralkyl and C6-C14-aryl; five- to six-membered nitrogen-containing heteroaryl radicals, unsubstituted or monosubstituted or polysubstituted by identical or different substituents selected from among C1-C8-alkyl, substituted or unsubstituted, C3-C12-cycloalkyl, C7-C13-aralkyl, C6-C14-aryl, halogen, C1-C6-alkoxy, C6-C14-aryloxy, SiR18R19R20 and Oâ€”SiR18R19R20, where R18-R20 are selected from among C1-C8-alkyl, C3-C12-cycloalkyl, C7-C13-aralkyl and C6-C14-aryl; where R13 to R17 together with one or more atoms Aj may form a saturated or unsaturated 5- to 12-membered ring, and [Y]âˆ’ is an anion.