Bizarre bimetallic compounds break C–F bonds

Figure 7 middle bottom

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First ever molecular Mg–Al bond constructed in study that reveals main group metal–metal bonds can readily react with aromatic fluorine

Bimetallic main group complexes can activate aromatic fluorine, a study by researchers in the UK has found.1 The reaction has a mechanism very similar to a typical nucleophilic aromatic substitution with a Grignard reagent and provides a simple route to a number of very rare molecular species – including a new compound with the first ever molecular Mg–Al bond.