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[(C5Me5)Ir(Me)2(Me2SO)] reacts with arenes (C6H5X) to give methane and a mixture of m- and p-substituted [(C5Me5)Ir(Me)(C6H4X)(Me2SO)]; the order of reactivity is X = I > NO2 > CF3 > Br > H > OMe > Cl > F > Me; iridium (V) species are proposed as intermediates.
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Gómez et al. (1983) studied this question.
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