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疎水性樹脂カラムを用いる金属ポルフィリンの錯形成時及び金属置換反応時における中間体の会合定数の測定
http://hdl.handle.net/2298/20101
http://hdl.handle.net/2298/20101bb23e37d-f1e9-42a5-b5ae-8cc9b7c77f66
名前 / ファイル | ライセンス | アクション |
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110002907065.pdf (526.4 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2011-07-07 | |||||
タイトル | ||||||
タイトル | 疎水性樹脂カラムを用いる金属ポルフィリンの錯形成時及び金属置換反応時における中間体の会合定数の測定 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題 | porphyrin, metal1oporphyrin, XAD column, association constants, kinetic constants | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
戸田, 敬
× 戸田, 敬× 實政, 勲× 出口, 俊雄 |
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別言語の著者 |
戸田, 敬
× 戸田, 敬× 實政, 勲× 出口, 俊雄 |
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内容記述 | ||||||
内容記述 | 金属イオンとボルフィリンが水溶液中で錯形成する際, 錯体形成前に両化学種間の会合体が存在していることを疎水性樹脂(AmberliteXAD-2)カラムを用いて確認した.金属イオン溶液の連続的な流れの中にポルフィリン溶液を注入すると, ボルフィリンはインジェクタ-の下流に設けたXADカラムに吸着する.その際, 会合及び錯形成した分の金属イオンも伴われて吸着し, その分金属イオン濃度が-時的に減少する.この減少分から算出すると, Cu^<2+>及びZn^<2+>とα, β, γ, δ-tetrakis(4-N-methylpyridyl)porphine(TMPyP)との会合定数は, それぞれ32(10℃)及び57(25℃)M^<-1>であった.ボルフィリンの金属錯体がCu^<2+>と金属置換反応する際も, 錯形成時と同様に会合体が生成していることが分かった.亜鉛錯体とCu^<2+>との置換反応の場合, 大きな会合定数が得られた.本研究により, 配位子あるいはその金属錯体が疎水性樹脂に吸着される現象を利用して, 金属イオンと配位子あるいはその金属錯体との間の相互作用を調べることができた.その結果は錯形成の反応速度論の実験より算出した値とほぼ一致した. | |||||
内容記述 | ||||||
内容記述 | The existence of intermediate species during complex formation between metal ions and porphyrin in aqueous solution was confirmed using an Amberlite XAD-2 resin column. When porphyrin solution is injected into the metal ion solution stream, the porphyrin adsorbed to the XAD column with the metal ions associated or complexed with it, and the decrease of the metal ion in solution is observed in the column eluant. Calculated from the decrease, the association constants of Cu^<2+> and Zn^<2+> with α, β, γ, δ-tetrakis(4- N-methylpyridyl)porphine (TMPyP) are 32 (l0℃) and 57 M^<-1> (25℃), respectively. It was also confirmed that the intermediate exists before the metal replacement reaction between Cu^<2+> and the metalloporphyrin complex. The association constant in the Cu^<2+> /Zn-TMPyP system was especially large. As mentioned above, the interaction of the metal ion and the ligand before complex formation can be investigated by separating the ligand with the attached metal ion from the free metal ion using the hydrophobic interaction between the column and the ligand. These results were in good agreement with the values obtained by the kinetic method. | |||||
書誌情報 |
分析化学 巻 45, 号 7, p. 659-665, 発行年 1996-07-05 |
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書誌レコードID | ||||||
収録物識別子 | AN00222633 | |||||
権利 | ||||||
権利情報 | 社団法人日本分析化学会 | |||||
情報源(ISSN) | ||||||
関連名称 | 05251931 | |||||
フォーマット | ||||||
内容記述 | application/pdf | |||||
形態 | ||||||
526448 bytes | ||||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
日本十進分類法 | ||||||
主題 | 433 | |||||
その他の言語のタイトル | ||||||
その他のタイトル | Measurement of association constants between metal ions and porphyrin or metalloporphyrins before their complexation or replacement reaction using a hydrophobic resin column | |||||
タイトル(ヨミ) | ||||||
その他のタイトル | ソスイセイ ジュシ カラム オ モチイル キンゾク ポルフィリン ノ サク ケイセイジ オヨビ キンゾク チカン ハンノウジ ニ オケル チュウカンタイ ノ カイゴウ テイスウ ノ ソクテイ | |||||
出版者 | ||||||
出版者 | 社団法人日本分析化学会 | |||||
資源タイプ | ||||||
内容記述 | 論文(Article) | |||||
資源タイプ・ローカル | ||||||
雑誌掲載論文 | ||||||
資源タイプ・NII | ||||||
Journal Article | ||||||
資源タイプ・DCMI | ||||||
text | ||||||
資源タイプ・ローカル表示コード | ||||||
01 | ||||||
URL | ||||||
内容記述 | http://ci.nii.ac.jp/naid/110002907065 | |||||
コメント | ||||||
本文データは学協会の許諾に基づきCiNiiから複製したものである |