Synthesis and Characterization of Poly(phenylacetylene)s with Ru(II) Bis‐Terpyridine Complexes in the Side‐Chain

Abstract

An alkyne-functionalized ruthenium(II) bis-terpyridine complex is directly copolymerized with phenylacetylene by alkyne polymerization. The polymer is characterized by size-exclusion chromatography (SEC), (1) H NMR spectroscopy, cyclic voltammetry (CV) measurements, and thermal analysis. The photophysical properties of the polymer are studied by UV-vis absorption spectroscopy. In addition, spectro-electrochemical measurements are carried out. Time-resolved luminescence lifetime decay curves show an enhanced lifetime of the metal complex attached to the conjugated polymer backbone compared with the Ru(tpy)2 (2+) model complex.

4′-(3,5-Dimethoxy-4-propargyloxyphenyl)-2,2′:6′,2″-terpyridine

“…Amongst this class of compounds, 2,2′:6′,2″-terpyridines, which are further functionalized with an internal or terminal alkyne, are particularly interesting, since they can be used to prepare functional materials (Figure 1). For example, these alkynyl N-heterocycles were used to prepare electrochromic materials [3], biological probes [4], supramolecular assemblies [5], catalysts and photocatalysts [6,7] or metal-containing polymers [8,9], to name a few. Furthermore, the ethynyl fragment can be used to attach terpyridine scaffolds onto various molecules, such amino acids [10], nucleosides [11] or aromatics [12].…”

ROMP Synthesis of Iron-Containing Organometallic Polymers

“…As result of the spectacular advancement in this field, a large pool of synthetic protocols have been elaborated to access newly designed organometallic polymers [24,25,26,27,28] bearing a main-group or transition metal core in either their backbones [29,30,31,32] or side chains [33,34,35,36,37]. These appealing procedures involve step- or chain-growth mechanisms and range from traditional polymerization reactions of metal-functionalized olefins and alkynes to chemoselective condensation, substitution, ring-opening and coordination polymerization processes of the appropriate metal-containing monomers [38,39,40,41,42,43].…”

Recent advances in metathesis-derived polymers containing transition metals in the side chain

“…The fast growing interest in metal-containing polymers (metallopolymers) as advanced hybrid materials spurred prolific research in the worldwide organometallic and polymer scientific communities [ 1 – 4 ]. The variety of metals and the diversity of organic polymers allow tailoring metallopolymers so as to reach the desired physical and chemical properties suitable for progressive applications [ 5 – 7 ]. These functional hybrid materials are highly appreciated for their superior behaviour in catalysis, optics as well as for their magnetic, mechanical and thermal attributes.…”