Self-Assembly of p-Conjugated Bis(terpyridine) Ligands with Zinc(II) Ions: New Metallosupramolecular Materials for Optoelectronic Applications
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Winter, Andreas; Friebe, Christian; Chiper, Manuela; Hager, Martin D.; Schubert, Ulrich S.
- Abstract:
- A series of main-chain metallopolymers (P1–P10) was prepared by the
self-assembly of rigid-linear p-conjugated bis(terpyridine) monomers (1–10) with ZnII
ions and was fully characterized. The polymerization was additionally confirmed by
UV/vis titration experiments. A strong increase in viscosities (around 1.6 times) relative
to those of the monomer solutions was found. The thermal stability of P1–P10
compared with that of 1–10 was enhanced as a result of the metallopolymerization.
The electro-optical properties of the materials were investigated in detail. Tuning of
the electrochemical and photophysical properties was enabled; thus, bright purple to
green photoluminescent (PL) emission (PL quantum yields of 0.12–0.81) for P1–P10
was observed in solution with the emission color strongly depending on the nature of
the p-conjugated bis(terpyridine) system. Thin homogeneous films of P6 were prepared
by solution processing, that is, spin-coating and inkjet-printing, and exhibited
intense yellow PL emission in the solid state.
- Year:
- 2009
- Type of Publication:
- Article
- Journal:
- Journal of Polymer Science: Part A: Polymer Chemistry
- Volume:
- 47
- Pages:
- 4083 - 4098