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Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
1e
−
Cl
Cl
−
−
1e
−
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
1e
−
1e
−
Cl
Cl
+
+
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
Cl
−
1.0
−
0.5
0.0
0.5
1.0
1.5
2.0
E(V)
Figure 2.2
Cyclic volammogram of radical
1
•
in CH
2
Cl
2
, with 0.1 Mn-Bu
4
NPF
6
(vs Ag/AgCl) showing the
reversibleformationoftwodifferentionicspeciesthatcorrespondtotheoxidationandreductionofthisradical.
Magnetic
Mole
c
ular
materials
Electric
Optic
Figure2.3
Interplaybetweenthedifferentpropertiesshownbyfunctionalmolecularmaterials.
Tunability and versatility of molecular chemistry offers a unique opportunity to design multifunctional
molecular materials or devices - that is, molecule-based systems showing two or more functions
simultaneously.
27
These new type of materials or devices may exhibit different combinations of properties,
such as magnetism/conductivity, magnetism/optical or conductivity/NLO properties.
28
Thepresenceof
two properties in the same crystal lattice, or even better in the same molecule, might result, if there
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