New strongly coupled dinuclear metal centres in organometallic s-indacene complexes
作者:Douglas R. Cary、Catherine G. Webster、Mark J. Drewitt、Stephen Barlow、Jennifer C. Green、Dermot O’Hare
DOI:10.1039/a700297a
日期:——
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.
Ligand-Centered Oxidation in a Diiron <i>s</i>-Indacene Complex
作者:Paul Roussel、Douglas R. Cary、Stephen Barlow、Jennifer C. Green、François Varret、Dermot O'Hare
DOI:10.1021/om990937c
日期:2000.3.1
The reaction of 1,3,5,7 tetra-tert-butyl-s-indacene (Ic‘) with [Fe2(CO)9] gives the bimetallic complex [Fe(CO)3}2Ic‘], 1, where the two Fe(CO)3 fragments are coordinated to the same face of the Ic‘ ligand. The cyclic voltammogram of 1 displays two quasi-reversible molecular oxidation waves and an irreversible molecular reduction wave. 1 can be chemically oxidized to its monocation with silver tetrafluoroborate
Unusual reactivity and isomerisation in dicobalt s-indacene complexes
作者:Paul Roussel、Mark J. Drewitt、Douglas R. Cary、Catherine G. Webster、Dermot O’Hare
DOI:10.1039/a806391e
日期:——
Di-Co(Cp)} derivatives of But4-s-indacene (Ic′) have been prepared, they exist as both cis and trans isomers which can interconvert in solution; the solution electrochemistry of these complexes show that these bimetallic complexes can exhibit up to four redox events; unusually, attempted oxidation by a protic oxidising agent of (CoCp)2Ic results in attack at the central carbons of the indacene rings.