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An electrode reaction of tris-complex consists of three reversible one-electron reduction processes and a reversible one-electron oxidation process. While an electrode reaction of bis bipyridine complex (one of three bipyridine ligands is replaced by other ligands such as py2, CN2 and en, etc.) consists of two reversible one-electron reduction processes and a reversible one-electron oxidation process. In bis-bipyridine complexes, half-wave potentials (and peak potentials) depend also on ligands such as py2, CN2 and en. Both oxidation and reduction potentials of the bis-complexes shift towards negative direction from potentials of the tris-complex. Among isoelectronic complexes : Os(bip)32+, Os(bip)2(py)22+ and Os(en)(bip)22+, tbe extent of the of shift is in the order bip\u003cpy\u003cen, while for Os(bip)2(CN)2, Os(bip)2(Cl)2 and Os(bip)2(Br)2, the order is CN-\u003cCl-\u003cBr-.In the oxidation process the shift also depends on a central atom and the order of influence is Os\u003cRu \u003cFe. An electron is removed from d orbital of a central atom at the electrode reaction and d5 complex is formed. In the reduction process the shifts scarcely depend on a central atom, because electrons are added to π*-orbital of ligands so that a central atom does not exert influence. 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非水溶媒中における白金族錯体の電気化学的研究 Os (II) および Ru (II)-αα'-ビピリジンと類縁錯体の電気化学的挙動
http://hdl.handle.net/10105/2527
http://hdl.handle.net/10105/2527910c8d6f-57bd-42e5-8e5d-a871b8274654
名前 / ファイル | ライセンス | アクション |
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NUE26_2_83-97.pdf (701.9 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2010-02-24 | |||||
タイトル | ||||||
タイトル | 非水溶媒中における白金族錯体の電気化学的研究 Os (II) および Ru (II)-αα'-ビピリジンと類縁錯体の電気化学的挙動 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ | departmental bulletin paper | |||||
著者 |
松村, 竹子
× 松村, 竹子× 森本, 智子× 中山, 照美 |
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著者(ヨミ) | ||||||
姓名 | マツムラ, タケコ | |||||
著者(ヨミ) | ||||||
姓名 | モリモト, トモコ | |||||
著者(ヨミ) | ||||||
姓名 | ナカヤマ, テルミ | |||||
著者別名 | ||||||
姓名 | MATSUMURA-INOUE, Takeko | |||||
著者別名 | ||||||
姓名 | MORIMOTO, Tomoko | |||||
著者別名 | ||||||
姓名 | NAKAYAMA, Terumi | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Electrochemical behaviours of Os (II)-αα'-bipyridine, Os (II)-o-phenanthroline, and Ru (Il)-αα' bipyridine complexes are studied in non aqueous solvents. An electrode reaction of tris-complex consists of three reversible one-electron reduction processes and a reversible one-electron oxidation process. While an electrode reaction of bis bipyridine complex (one of three bipyridine ligands is replaced by other ligands such as py2, CN2 and en, etc.) consists of two reversible one-electron reduction processes and a reversible one-electron oxidation process. In bis-bipyridine complexes, half-wave potentials (and peak potentials) depend also on ligands such as py2, CN2 and en. Both oxidation and reduction potentials of the bis-complexes shift towards negative direction from potentials of the tris-complex. Among isoelectronic complexes : Os(bip)32+, Os(bip)2(py)22+ and Os(en)(bip)22+, tbe extent of the of shift is in the order bip<py<en, while for Os(bip)2(CN)2, Os(bip)2(Cl)2 and Os(bip)2(Br)2, the order is CN-<Cl-<Br-.In the oxidation process the shift also depends on a central atom and the order of influence is Os<Ru <Fe. An electron is removed from d orbital of a central atom at the electrode reaction and d5 complex is formed. In the reduction process the shifts scarcely depend on a central atom, because electrons are added to π*-orbital of ligands so that a central atom does not exert influence. The experimental result that reduction potentials depend on ligands such as py2, CN2 and en, suggests, however, that these ligands can exert influences on bipyridine ligand probably through central atom. | |||||
書誌情報 |
奈良教育大学紀要. 自然科学 巻 26, 号 2, p. 83-97, 発行日 1977-11-15 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 05472407 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00181070 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
その他のタイトル | ||||||
その他のタイトル | The Electrochemical Study of Platinum Metal Complexes The Electrochemical Behaviour of Os (II) and Ru (II) Complexes with αα'-Bipyridine and o-Phenanthlorine in Non Aqueous Solvents | |||||
出版者 | ||||||
出版者 | 奈良教育大学 |