| http://www.w3.org/ns/prov#value | - r ##STR25## and Riv is a C1 to C8 alkyl radical, and Ligand B is an unsubstituted 2,2'-dipyridyl radical, a 2,2'-dipyridyl radical substituted with only one or more hydrocarbon radicals, or is a 4,4' or a 5,5' substituted 2,2' bipyridyl group of the structure shown above which is the same or different from that of Ligand A,X is a compatible anion, a and b are integers, a is 1, 2, or 3, b is 0, 1 o
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