Patent ID: 6291655
Filing Date: 2001-09-18
Classification: C07F,C08F,Y10S

Abstract:
A binuclear metal hydride complex of the formula (I) ##STR4##where the substituents and indices have the following meanings:M is yttrium,R is hydrogen, halogen, C.sub.1 -C.sub.20 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl, C.sub.6 -C.sub.15 -aryl or C.sub.3 -C.sub.30 -organosilyl, where two adjacent radicals R can also form a saturated or unsaturated, cyclic or heterocyclic group having from 4 to 18 carbon atoms,Z is --SiR'.sub.2 --, --CR'.sub.2 --, GeR'.sub.2 --, BR'-- or --O--,R' is C.sub.1 -C.sub.20 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl, C.sub.6 -C15-aryl or alkylaryl having from 1 to 10 carbon atoms in the alkyl part and from 6 to 10 carbon atoms in the aryl part,m is 1 or 2,X is --O--, --S--, NR""--, --PR""--, --OR"", --SR"", --NR"".sub.2 or --PR"".sub.2,R"" is hydrogen, C.sub.1 -C.sub.20 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl, C.sub.6 -C.sub.15 -aryl, alkylaryl having from 1 to 10 carbon atoms in the alkyl part and from 6 to 10 carbon atoms in the aryl part or C.sub.3 -C.sub.30 -organosilyl andL is a low molecular weight, Lewis-basic, organic compound.