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(
n
6) each order antiferromagnetically between 13 K and 15 K. A weak
moment develops below the ordering temperature and the solid-state phosphonates
are known to be canted antiferromagnets.
LB deposition of the TTF-LB1 amphiphile from an aqueous Mn
+
2
=
2
−
subphase
forms Y-type films with stoichiometry Mn
2
(TTF-LB1)(H
2
O)
2
. Static
measure-
ments show that the films become magnetic near 11.5 K when the manganese
phosphonate network orders as a canted antiferromagnet. This is illustrated in
Fig. 6.44.
Attempts to subsequently oxidize the TTF network have given unstable phases.
Iodine vapour oxidation occurs initially, but the films quickly revert back to the
neutral donor form. In spite of the not-yet proven bifunctionality, this example
represents a step towards the controlled preparation of a dual-network LB film that
is both conducting and magnetic, showing the way to be followed.
It is clear that this chapter could be continued with more examples of physical
properties of MOMs, but it would certainly become very long and difficult to
digest. I rather prefer to stop here, aware, as mentioned at the very beginning, that
many interesting examples are missing, making this chapter inevitably incomplete.
However, other examples have already been discussed in the previous chapters, so
a broad range of examples has been covered.
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