| http://www.w3.org/ns/prov#value | - sisting essentially of the following components(a) an optically active transition metal compound containing only one enantiomer (R- or S-form) of a stereorigid, chiral transition metal compound of the formula ##STR2## in which R1 is a C1 to C4 hydrocarbon radical, Me is a transition metal of the 4th to 6th sub-group and A is a mononuclear or polynuclear, unsymmetrical hydrocarbon radical and R2 an
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