| http://www.w3.org/ns/prov#value | - In structure (IV), R6 is selected from the group consisting of hydrogen, alkyl groups, aryl groups, arylalkyl groups, alkylaryl groups, and oligomeric constituents having the structure ???Z???X. Each R7 is independently selected from the group consisting of hydrogen, halogen atoms, alkyl groups, alkoxy groups, nitrile groups, nitro groups, amide groups, and sulfonamide groups, and q is an integer
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