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Building bridges: The first m-metallapyridine and the first metallapyridyne were synthesized under mild reaction conditions. The two complexes are metal-bridged polycyclic metallabenzenoid aromatics, in which the transition-metal center is shared by both six-membered rings. The synthetic method permits the use of metallabenzene as a starting material to access higher π-electron metallaaromatics.
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Wang et al. (2012) studied this question.
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