Preparation and Photochemical Properties of Poly (vinylpyridine-co-vinylbipyridine) Pendant [Ru (bpy) <SUB>3</SUB>]<SUP>+2</SUP> Complex

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  • ビニルピリジン‐ビニルビピリジン共重合体型〔Ｒｕ（ｂｐｙ）３〕｀２＋´錯体の合成と光化学的性質
  • ビニルピリジン ビニルビピリジン キョウジュウゴウ タイケイ Ru bpy 3

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Abstract

Polymer pendant tris (2, 2′-bipyridine) ruthenium (II) type complexes were prepared from the copolymer of 4-vinylpyridine (Vpy) and 4-methyl-4′-vinyl-2, 2′-bipyridine (Vbpy), and from its derivative quaternized with bromoethane. In the reaction of P (Vpy-Vbpy) with cis-Ru (bpy) 2Cl2, the coordination of the Vpy groups occurred at first rapidly, followed by the formation of the [Ru (bpy) 3]2+ type complex by ligand substitution. The photoexcited states of both the polymer pendant complexes ; Ru [P (Vpy-Vbpy)] (bpy) 22+ and Ru [EQ-P (Vpy-Vbpy)] - (bpy) 22+, showed two kinds of lifetime species, the longer lifetime being almost the same as [Ru (bpy) 3]2+ (500-600 ns). The excited state of the Ru [EQ-P (Vpy-Vbpy)] (bpy) 22+ showed remarkably short lifetime of ca. 10ns, which is considered to be due to the heavy atom effect of the bromine.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 41 (5), 311-314, 1984

    The Society of Polymer Science, Japan

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