Macromolecules containing Bipyridine and Terpyridine Metal Complexes: Towards Metallo-Supramolecular Polymers
-
Schubert, Ulrich S.; Eschbaumer, Christian
- Abstract:
- The ability of a broad range of N-heterocycles
to act as very effective and
stable complexation agents for several
transition metal ions, such as cobalt(),
copper(), nickel(), and ruthenium(),
has longbeen known in analytical
chemistry. This behavior was later
utilized in supramolecular chemistry
for the construction of highly sophisticated
architectures, such as helicates,
racks, and grids. The discovery of
macromolecules by Staudinger in
1922 opened up avenues towards sophisticated
materials with properties
hitherto completely unknown. In the
last few decades, the combination of
macromolecular and supramolecular
chemistry has been attempted by developingmetal-
complexing and metalcontainingpolymers
for a wide variety
of applications that range from filtration
to catalysis. The stability of the
polymer ±metal complex is a fundamental
requirement for such applications.
In this respect, the use of bi- and
terpyridines as chelatinglig ands is
highly promising, since these molecules
are known to form highly stable
complexes with interestingphysical
properties with transition-metal ions.
A large number of different structures
have been designed for many different
applications, but polymers based on
the application of coordinative forces
have been prepared in a few cases only.
Furthermore, the synthetic procedures
applied frequently resulted in low
yields. Duringthe last few years, strong
efforts have been made in the direction
of self-assemblingand supramolecular
polymers as novel materials with ™intelligent∫
and tunable properties. In
this review, an overview of this active
area at the interface of supramolecular
and macromolecular chemistry is
given.
- Year:
- 2002
- Type of Publication:
- Article
- Keywords:
- bipyridine ligands; coordination chemistry; polymers; supramolecular chemistry; terpyridine ligands
- Journal:
- Angewandte Chemie
- Volume:
- 41
- Pages:
- 2892 – 2926