| http://www.w3.org/ns/prov#value | - In formulae Ia and Ib, X.sup.??? is an inorganic or organic anion, for example a halide, such as chloride, bromide or iodide, or a sulfate, perchlorate, tetrafluoborate, methylsulfonate, phenylsulfonate, 4-methylphenylsulfonate or salicylate.
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