1997年1月
Detailed analysis of reaction kinetics and mechanisms of electrogenerated tetramethoxythianthrene cation radical and dication
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
- ,
- ,
- 巻
- 420
- 号
- 1-2
- 開始ページ
- 1
- 終了ページ
- 4
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/S0022-0728(96)01024-8
- 出版者・発行元
- ELSEVIER SCIENCE SA LAUSANNE
To make clear the differences in kinetic behavior between cation radical and dication, detailed analyses were carried out on the reactions of electrogenerated 2,3,7,8-tetramethoxythianthrene cation radical (TMT+.) and dication (TMT2+) with nucleophiles (methanol and pyridine) by using a pulse-electrolysis stopped-flow method. Compared with the reactions of TMT+., which proceed via multi-step reactions including the electron transfer of another TMT+. to generate TMT before the rate determining step (rds), in the reactions of TMT2+ it was found that the rds is the first or the second step of the reactions; i.e. the unstable cationic intermediate seems to be formed directly and not via electron transfer. Besides the additional charge in the dication state, the mechanisms in which TMT2+ is easily accessible to the rds also suggest the high reactivity of TMT 2+ in comparison with TMT+.. The differences in the reaction mechanisms arising from the type of nucleophile were also discussed.
- リンク情報
-
- DOI
- https://doi.org/10.1016/S0022-0728(96)01024-8
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:A1997WU68500001&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-0030716543&partnerID=MN8TOARS
- URL
- http://orcid.org/0000-0001-7422-9914
- ID情報
-
- DOI : 10.1016/S0022-0728(96)01024-8
- ISSN : 0022-0728
- ORCIDのPut Code : 13306827
- SCOPUS ID : 0030716543
- Web of Science ID : WOS:A1997WU68500001