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Building butterflies: A carborane-supported {ReIrAu2} butterfly has been assembled by stepwise addition of iridium and then gold to a rhenium-monocarborane complex (see picture green=BH, orange=B, black=CPh). The method of preparation has considerable potential for the synthesis of other new heteropolymetallic species.
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Du et al. (2003) studied this question.
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