| http://www.w3.org/ns/prov#value | - Non-limiting examples of such compounds are titanium and vanadium halides, e.g. titanium tetrachloride, vanadium tetrachloride, vanadium oxytrichloride, titanium and vanadium alkoxides, wherein the alkoxide moiety has a branched or unbranched alkyl group of 1 to about 20 carbon atoms, preferably 1 to about 6 carbon atoms.
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