Radiation-induced immobilization of ruthenium tris(bipyridine) and methyl viologen in nafion layers. Ionic exchange, mobilities, and illumination studies

Joseph Rabani; David Behar

doi:10.1021/j100029a035

Radiation-induced immobilization of ruthenium tris(bipyridine) and methyl viologen in nafion layers. Ionic exchange, mobilities, and illumination studies

Joseph Rabani^*, David Behar

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Exposure of thin Nafion layers to 300 keV electron beam irradiations has a remarkable effect on the properties of adsorbed Ru(bpy)₃²⁺ and methyl viologen (MV²⁺) ions. Irradiation, both in the presence and in the absence of the adsorbants, shows a pronounced effect on slowing charge migration rates. Irradiation in the presence of Ru(bpy)₃²⁺ induces a red shift in the emission band. The results are interpreted in terms of radiation-induced cross-linking and covalent binding of Ru(bpy)₃²⁺ and MV²⁺ to the Nafion chains. Both mobile and immobile Ru(III) slowly oxidize bpy ligand. Immobilization of the Ru complex explains also photochemical results.

Original language	English
Pages (from-to)	11531-11536
Number of pages	6
Journal	Journal of Physical Chemistry
Volume	99
Issue number	29
DOIs	https://doi.org/10.1021/j100029a035
State	Published - 1995

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title = "Radiation-induced immobilization of ruthenium tris(bipyridine) and methyl viologen in nafion layers. Ionic exchange, mobilities, and illumination studies",

abstract = "Exposure of thin Nafion layers to 300 keV electron beam irradiations has a remarkable effect on the properties of adsorbed Ru(bpy)32+ and methyl viologen (MV2+) ions. Irradiation, both in the presence and in the absence of the adsorbants, shows a pronounced effect on slowing charge migration rates. Irradiation in the presence of Ru(bpy)32+ induces a red shift in the emission band. The results are interpreted in terms of radiation-induced cross-linking and covalent binding of Ru(bpy)32+ and MV2+ to the Nafion chains. Both mobile and immobile Ru(III) slowly oxidize bpy ligand. Immobilization of the Ru complex explains also photochemical results.",

author = "Joseph Rabani and David Behar",

year = "1995",

doi = "10.1021/j100029a035",

language = "אנגלית",

volume = "99",

pages = "11531--11536",

journal = "Journal of Physical Chemistry",

issn = "0022-3654",

publisher = "American Chemical Society",

number = "29",

}

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T1 - Radiation-induced immobilization of ruthenium tris(bipyridine) and methyl viologen in nafion layers. Ionic exchange, mobilities, and illumination studies

AU - Rabani, Joseph

AU - Behar, David

PY - 1995

Y1 - 1995

N2 - Exposure of thin Nafion layers to 300 keV electron beam irradiations has a remarkable effect on the properties of adsorbed Ru(bpy)32+ and methyl viologen (MV2+) ions. Irradiation, both in the presence and in the absence of the adsorbants, shows a pronounced effect on slowing charge migration rates. Irradiation in the presence of Ru(bpy)32+ induces a red shift in the emission band. The results are interpreted in terms of radiation-induced cross-linking and covalent binding of Ru(bpy)32+ and MV2+ to the Nafion chains. Both mobile and immobile Ru(III) slowly oxidize bpy ligand. Immobilization of the Ru complex explains also photochemical results.

AB - Exposure of thin Nafion layers to 300 keV electron beam irradiations has a remarkable effect on the properties of adsorbed Ru(bpy)32+ and methyl viologen (MV2+) ions. Irradiation, both in the presence and in the absence of the adsorbants, shows a pronounced effect on slowing charge migration rates. Irradiation in the presence of Ru(bpy)32+ induces a red shift in the emission band. The results are interpreted in terms of radiation-induced cross-linking and covalent binding of Ru(bpy)32+ and MV2+ to the Nafion chains. Both mobile and immobile Ru(III) slowly oxidize bpy ligand. Immobilization of the Ru complex explains also photochemical results.

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SN - 0022-3654

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JO - Journal of Physical Chemistry

JF - Journal of Physical Chemistry

IS - 29

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Radiation-induced immobilization of ruthenium tris(bipyridine) and methyl viologen in nafion layers. Ionic exchange, mobilities, and illumination studies

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