Synthesis and Characterization of Nickel(II) and Palladium(II) Pyrrolyl Complexes and Their Polymerization to Electroactive Materials

ACS Citation

Mathis, M.; Harsha, W.; Hanks, T. W.; Bailey, R. D.; Schimek, G. L.; Pennington, W. T. Synthesis and Characterization of Nickel(II) and Palladium(II) Pyrrolyl Complexes and Their Polymerization to Electroactive Materials. Chem. Mater. 1998, 10, 3568-3575.

Abstract

Four new transition metal?pyrrolyl complexes, bis(pyridyl)bis(pyrrolyl)palladium(II), (2,2?-bipyridyl)bis(pyrrolyl)palladium(II), (6-phenyl-2,2?-bipyridine)(pyrrolyl)palladium(II), and bis(trimethylphosphino)(pyrrolyl)nickel(II) chloride, have been prepared and characterized. DFT calculations indicate that radical cations of the palladium compounds and their dimers have spin densities primarily on the pyrrolyl ligand, while the spin density of the nickel species radical is diffuse. Each complex was found to undergo oxidative polymerization to semiconducting polymers with good thermal properties. Polymers prepared with dodecylbenzenesulfonate as the counterion were soluble and could be cast into smooth, films with good physical properties. Four new transition metal?pyrrolyl complexes, bis(pyridyl)bis(pyrrolyl)palladium(II), (2,2?-bipyridyl)bis(pyrrolyl)palladium(II), (6-phenyl-2,2?-bipyridine)(pyrrolyl)palladium(II), and bis(trimethylphosphino)(pyrrolyl)nickel(II) chloride, have been prepared and characterized. DFT calculations indicate that radical cations of the palladium compounds and their dimers have spin densities primarily on the pyrrolyl ligand, while the spin density of the nickel species radical is diffuse. Each complex was found to undergo oxidative polymerization to semiconducting polymers with good thermal properties. Polymers prepared with dodecylbenzenesulfonate as the counterion were soluble and could be cast into smooth, films with good physical properties.

Source Name

Chemistry of Materials

Publication Date

1-1-1998

Volume

10

Issue

11

Page(s)

524-524

Document Type

Citation

Citation Type

Article

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