| http://www.w3.org/ns/prov#value | - These include, in particular, organoelement compounds, especially organometallic compounds such as metallocenes and organosilicon compounds, in particular silanes if they have at least one organic radical which preferably comprises 1-10 carbon atoms and, if desired, the elements oxygen, hydrogen, nitrogen and/or sulfur, and siloxanes if they have at least one organic radical which preferably compr
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