| http://www.w3.org/ns/prov#value | - up consisting of IVB, VB, and VIB metals of the Periodic Table, each Q is the same or different and is selected from the group consisting of hydrocarbyl or hydrocarbyloxy radicals having 1 to 20 carbon atoms and halogens, x is 1 or 0, k is an integer sufficient to fill out the remaining valences of m, n is an integer in the range of 0 to 7, m is an integer in the range of 0 to 7, further character
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