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Complex rearrangements: Rhenabenzynes, which are metallaaromatic compounds related to metallabenzenes (see scheme), can be obtained from thermally unstable rhenium–carbyne complexes through rearrangement reactions. The rhenabenzyne complex was characterized by elemental analysis, 1H NMR spectroscopy, and X-ray diffraction analysis. The results show that it is possible to prepare metallabenzynes with different transition metals.
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Chen et al. (2011) studied this question.
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