Abstract
AbstractIn the oxidative polymerization of 2,6‐dimethylphenol (8) the catalytic activities of the following semiconducting organic polymeric metal complexes were studied: polymeric complexes containing bis(ethylene‐1,2‐dithiolato)Cu(II) or Fe(III) complexes and copper(II) phthalocyanine structures (3a–c), catalysts consisting of bis(ethylene‐1,2‐dithiolato)‐Cu(II) or Fe(III) complex structures and hemiporphyrazine type structures (5a–c), and also polymers containing a copper complex of dimercaptomaleic acid monoamide (7). It was found that a suspension of the insoluble bis(ethylene‐1,2‐dithiolato)Cu(II) polymeric complexes of type 3 catalyzes the polymerization in the presence of oxygen in pyridine at room temperature producing poly[oxy‐(2,6‐dimethyl‐1,4‐phenylene)] (9) in very good yields. Polymeric complexes of type 5 were inactive by themselves. However, we showed that bis(ethylene‐1,2‐dithiolato)Cu(II) polymeric complexes of both the 3 and 5 type possess great activities if they are used in the presence of small amounts of copper(II)‐pyridine complex in pyridine solution (the chosen concentration was so low that the Cu(II)‐pyridine complex alone had only a small activity). Bis(ethylene‐1,2‐dithiolato)Fe(III) complexes of both the 3 and 5 type were inactive even in the presence of the Cu(II)‐pyridine complex.
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