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ID 47035
本文ファイル
著者
Yasui, Takashi
Ohnishi, Takashi
Yamaguchi, Masayo
Tamamura, Saki
Yamada, Hiromichi
Yuchi, Akio
NDC
化学
抄録(英)
The redox potentials of cobalt and iron complexes with ten pyridylazo compounds, E0ML2 (ML2+/0; M: CoIII/II, FeIII/II; L-: pyridylazo compounds), have been determined in order to explore the difference in their reversed-phase HPLC behavior. The redox potentials of Co complexes were in the range of -0.62 - 0.03 V, while those of Fe complexes were -0.06 - 0.59 V relative to 0.20 V for ferricinium/ferrocene. The redox potentials of both the Co and Fe complexes were linearly correlated to the basicities of the ligands. The correlation was quantitatively explained by a difference in dependence of the stabilities of MIII and MII complexes on the ligand basicities. The complex of [CoIIIL2]+ or [FeIIL2] with any compound injected in the reversed-phase HPLC system was detected without any change in the composition. When [CoIIL2] was injected, only those complexes having the highest potentials of E0CoL2 ≅ 0.0 V were detected as [CoIIL2], while other complexes having lower potentials gave a peak of [CoIIIL2]+. When [FeIIIL2]+ was injected, only complexes having the lowest potentials of E0FeL2 ≅ 0.0 V were detected as [FeIIIL2]+, while others having higher potentials gave a peak of [FeIIL2].
掲載誌名
Analytical Sciences
24巻
12号
開始ページ
1575
終了ページ
1580
出版年月日
2008-12
出版者
The Japan Society for Analytical Chemistry
ISSN
0910-6340
1348-2246
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
2008 © The Japan Society for Analytical Chemistry
関連情報URL
部局名
総合科学研究科