| Item type |
☆紀要論文 / Departmental Bulletin Paper(1) |
| 公開日 |
2010-08-05 |
| タイトル |
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タイトル |
Syntheses and Characterization of Co(III) Binuclear Complexes Linked by Bis(catecholate); [Co_2(dmbpy)_4(thBu)]^<2+> and [Co_2(dcbpy)_4(thBu)]^<2+> (dmbpy ＝ 4,4'-dimethyl-2,2'-bipyridine, dcbpy ＝ 4,4'-diethylcarboxylate-2,2'-bipyridine, thBu = 3,3',4,4'-tetrahydroxylate-5,5'-di-tert-butylbenzaldazine) |
|
言語 |
en |
| 著者 |
Suenaga, Yusaku
Umehata, Yukiko
Minematsu, Toshie
Maekawa, Masahiko
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| 言語 |
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言語 |
eng |
| キーワード |
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主題 |
Biscatecholate, Binuclear Co(III) complexes;, ^1H-NMR with various temperature, Oxidationbehavior, Nitrogen-donor ancillary ligand |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
departmental bulletin paper |
| 著者 所属 |
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Department of Chemistry, Kinki University , Research Institute of Science and Technology, Kinki University |
| 著者 所属 |
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Department of Chemistry, Kinki University |
| 著者 所属 |
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School of Pharmaceutical Sciences, Kinki University |
| 著者 所属 |
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Research Institute of Science and Technology, Kinki University |
| 版 |
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出版タイプ |
NA |
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出版タイプResource |
http://purl.org/coar/version/c_be7fb7dd8ff6fe43 |
| 出版者 名前 |
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出版者 |
近畿大学理工学総合研究所 |
| 書誌情報 |
理工学総合研究所研究報告
en : Annual reports by Research Institute for Science and Technology
号 21,
p. 35-43,
発行日 2009-02-01
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| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
09162054 |
| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Binuclear complexes of cobalt(III) have been prepared with 3,3',4,4'-tetrahydroxy-5,5'-di-t-butylbenzaldazine (H_4thBu) as bis(catecholate) ligand, and ancillary ligand, 4,4'-dimethyl-2,2'-bipyridine (dmbpy) and 4,4'-diethylcarboxylate-2,2'-bipyridine (dcbpy). The complexes were characterized by ^1H-NMR spectra, electrochemical measurements and UV-Vis spectra. In [Co_2(dmbpy)_4(thBu)]^<2＋>, electrochemical oxidation of the complexes occurs at the bridges as two closely spaced one-electron couples (E_<1/2>=74mV and 236 mV vs. Fc/Fc^＋). Chemical oxidation of [Co_2(dmbpy)_4(thBu)]^<2＋> using Ag^＋ is observed new absorbance peak at 526 nm however, is not remarkable change as [Co_2(dpa)_4(thBu)]^<2＋> (dpa = 2,2'-dipyridylamine) that have been described in our later paper. On the other hand, [Co_2(dcbpy)_4(thBu)]^<2＋> has never appeared new absorbance peaks under the same oxidation condition. Thus the chemical oxidation behavior and electrochemical property were correlated with the pKa of the N-N ancillary ligands. In this report we discuss the effect of two different nitrogen-donor ancillary ligands on the oxidation behavior of binuclear Co(III) complexes. |
| フォーマット |
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内容記述タイプ |
Other |
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内容記述 |
application/pdf |
AN10074306-20090228-0035.pdf (2.1 MB)
