New strongly coupled dinuclear metal centres in organometallic s-indacene complexes
Abstract
The complexes
cis-[{Fe(CO)
3
}
2
L] and
cis-[{Co(CO)
2
}
2
L] are prepared
from 1,3,5,7-tetra-tert-butyl-s-indacene; in solution,
the diiron complexes exhibit very strong electron–electron coupling
between iron centres as evidenced by a 810 mV separation between the 0/+
and +/2+ redox waves.
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