Spectral annd Electrochemical Characterization of Ruthenium Porphyrins
碩士 === 國立臺灣大學 === 化學研究所 === 87 === Three kinds of ruthenium porphyrins Ru(CO)(P) (where P = tetramesitylphenylporphyrin, tetra(2,6-dichlorophenyl)porphyrin and tetrapentafluorophenylporphyrin) have been synthesized. Electrochemical properties of these porphyrins have been studied in different solve...
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ndltd-TW-087NTU000650032016-02-01T04:12:24Z http://ndltd.ncl.edu.tw/handle/41703425852288483990 Spectral annd Electrochemical Characterization of Ruthenium Porphyrins 釕紫質的光譜性質與電催化反應 Chin-Yu, Chen 陳青諭 碩士 國立臺灣大學 化學研究所 87 Three kinds of ruthenium porphyrins Ru(CO)(P) (where P = tetramesitylphenylporphyrin, tetra(2,6-dichlorophenyl)porphyrin and tetrapentafluorophenylporphyrin) have been synthesized. Electrochemical properties of these porphyrins have been studied in different solvents. Spectroelectrochemical measurement of the reduction/oxidation product indicates that the reaction occurs at the porphyin ring. Oxidation of carbonyl-ruthenium tetramesitylphenyl porphyrin (Ru(CO)(TMP)) by mCPBA (meta-chloro-perbenzoic acid) produces dioxo-ruthenium porphyrin (Ru(O)2TMP), which is reversibly oxidize at +1.24 V. Ru(O)2TMP is very sensitive to acids and yields a new species similar to Ru(IV) porphyrin. Thin-layer absorption spectra for oxidation of Ru(O)2TMP at +1.32 V shows that the product is porphyrin cation radical (Ru(O)2TMP+.). Electrogenerated Ru(O)2TMP+. reacts with styrene to give phenylaectaldehyde (95%) and benaldehyde (5%). This is the first case to oxidize styrene by ruthenium porphyrin electrochemically. The electrolysis products are quite different from those obtained from chemical oxidants. Su, Y. O. 蘇玉龍 1999 學位論文 ; thesis 119 zh-TW |
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碩士 === 國立臺灣大學 === 化學研究所 === 87 === Three kinds of ruthenium porphyrins Ru(CO)(P) (where P = tetramesitylphenylporphyrin, tetra(2,6-dichlorophenyl)porphyrin and tetrapentafluorophenylporphyrin) have been synthesized. Electrochemical properties of these porphyrins have been studied in different solvents. Spectroelectrochemical measurement of the reduction/oxidation product indicates that the reaction occurs at the porphyin ring. Oxidation of carbonyl-ruthenium tetramesitylphenyl porphyrin (Ru(CO)(TMP)) by mCPBA (meta-chloro-perbenzoic acid) produces dioxo-ruthenium porphyrin (Ru(O)2TMP), which is reversibly oxidize at +1.24 V. Ru(O)2TMP is very sensitive to acids and yields a new species similar to Ru(IV) porphyrin. Thin-layer absorption spectra for oxidation of Ru(O)2TMP at +1.32 V shows that the product is porphyrin cation radical (Ru(O)2TMP+.). Electrogenerated Ru(O)2TMP+. reacts with styrene to give phenylaectaldehyde (95%) and benaldehyde (5%). This is the first case to oxidize styrene by ruthenium porphyrin electrochemically. The electrolysis products are quite different from those obtained from chemical oxidants.
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author2 |
Su, Y. O. |
author_facet |
Su, Y. O. Chin-Yu, Chen 陳青諭 |
author |
Chin-Yu, Chen 陳青諭 |
spellingShingle |
Chin-Yu, Chen 陳青諭 Spectral annd Electrochemical Characterization of Ruthenium Porphyrins |
author_sort |
Chin-Yu, Chen |
title |
Spectral annd Electrochemical Characterization of Ruthenium Porphyrins |
title_short |
Spectral annd Electrochemical Characterization of Ruthenium Porphyrins |
title_full |
Spectral annd Electrochemical Characterization of Ruthenium Porphyrins |
title_fullStr |
Spectral annd Electrochemical Characterization of Ruthenium Porphyrins |
title_full_unstemmed |
Spectral annd Electrochemical Characterization of Ruthenium Porphyrins |
title_sort |
spectral annd electrochemical characterization of ruthenium porphyrins |
publishDate |
1999 |
url |
http://ndltd.ncl.edu.tw/handle/41703425852288483990 |
work_keys_str_mv |
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