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Studies on the reduction of [(C5Me5)(2)Mo2O5] in methanol/water/acetate solutions by on-line electrochemical flowcell and electrospray mass spectrometryстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Gun J., Modestov A., Lev O., Saurenz D., Vorotyntsev M.A., Poli R.
- Журнал: European Journal of Inorganic Chemistry
- Номер: 3
- Год издания: 2003
- Издательство: John Wiley & Sons Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 482
- Последняя страница: 492
- Аннотация: The Complex [CP*2Mo2O5] (CP* = eta(5)-C5Me5) and its electrochemical reduction products in acetic acid/acetate-buffered (pH = 4.0) water/methanol solutions were investigated by combined electrochemical (EC) flowcell and on-line electrospray ionization mass spectrometry (ESI-MS). Mono-, di-, tri-, and tetranuclear organometallic molybdenum oxides were identified in the starting solution. The effect of the relevant FSI-MS parameters (ionic mode, heated capillary voltage, and heated capillary temperature) and of the concentration on the observed distribution of ions in the mass spectrometer was studied in order to minimize side reactions in the ESI chamber. It was verified that reduction in the ESI-MS is undetectable under open-circuit conditions. The on-line electrochemical study revealed the potential-dependent formation of previously unknown mono-, di-, tri-, and tetranuclear Mo-V, Mo-IV and mixed-valence complexes. The compounds were identified by their characteristic isotope patterns and their ion trap MSn fragmentations. The observed formation potentials reflect the higher stability of the multinuclear species relative to the mononuclear ones with the same oxidation state.
- Добавил в систему: Воротынцев Михаил Алексеевич