| http://www.w3.org/ns/prov#value | - R in formula (II) is preferably a C1-C40 hydrocarbon radical which can be halogenated, preferably perhalogenated, with halogens such as fluorine, chlorine, bromine or iodine, in particular a halogenated, especially perhalogenated C1-C30-alkyl group, such as trifluoromethyl, pentachloroethyl, heptafluoroisopropyl or monofluoroisobutyl or a halogenated, especially perhalogenated C6-C30-aryl group, s
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