Hexazirconium- and Hexahafnium-Containing Tungstoarsenates(III) and Their Oxidation Catalysis Properties Научная публикация
| Журнал |
Chemistry - A European Journal
ISSN: 0947-6539 , E-ISSN: 1521-3765 |
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| Вых. Данные | Год: 2010, Том: 16, Номер: 39, Страницы: 11797-11800 Страниц : 4 DOI: 10.1002/chem.201000786 | ||||||
| Ключевые слова | hafnium, homogeneous catalysis, oxidation, polyoxometalates, zirconium | ||||||
| Авторы |
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| Организации |
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Информация о финансировании (4)
| 1 | Российский фонд фундаментальных исследований | 09-03-91333 |
| 2 | Jacobs University Bremen | |
| 3 | German Research Foundation | KO 2288/9-4 |
| 4 | Verband der Chemischen Industrie |
Реферат:
In summary, the two novel polyanions [M6O4(OH)4-(H2O)2(CH3COO)5(AsW9O33)2]11 (M=Zr, 1; Hf, 2) contain
an unprecedented octahedral Zr6/Hf6 assembly that is stabilized by two (B-a-AsW9O33) groups and five bridging acetate ligands. Both compounds were characterized by several techniques in the solid state. NMR studies in solution were also conducted on 1 and 2 in H2O/D2O and MeCN solutions, respectively. The spectra suggest C2v symmetry for the polyanions in solution, most likely due to fluxional behavior of the labile acetate groups. The TBA salts of both 1 and 2 revealed high catalytic activity and selectivity in the liquidphase oxidation of organic compounds with aqueous H2O2.
A heterolytic oxidation mechanism is manifested by the high yields of epoxide and diol in the oxidation of cyclohexene.
We plan to perform additional mechanistic studies to better understand the catalytic behavior of 1 and 2, and also
to prepare other carboxylate and perhaps also peroxo derivatives of the title polyanions.
Библиографическая ссылка:
Al-Kadamany G.
, Mal S.S.
, Milev B.
, Donoeva B.G.
, Maksimovskaya R.I.
, Kholdeeva O.A.
, Kortz U.
Hexazirconium- and Hexahafnium-Containing Tungstoarsenates(III) and Their Oxidation Catalysis Properties
Chemistry - A European Journal. 2010. V.16. N39. P.11797-11800. DOI: 10.1002/chem.201000786 WOS Scopus РИНЦ CAPlusCA OpenAlex
Hexazirconium- and Hexahafnium-Containing Tungstoarsenates(III) and Their Oxidation Catalysis Properties
Chemistry - A European Journal. 2010. V.16. N39. P.11797-11800. DOI: 10.1002/chem.201000786 WOS Scopus РИНЦ CAPlusCA OpenAlex
Даты:
| Поступила в редакцию: | 29 мар. 2010 г. |
| Опубликована online: | 9 сент. 2010 г. |
| Опубликована в печати: | 18 окт. 2010 г. |
Идентификаторы БД:
| Web of science: | WOS:000283834500003 |
| Scopus: | 2-s2.0-78249243067 |
| РИНЦ: | 16710547 |
| Chemical Abstracts: | 2010:1287942 |
| Chemical Abstracts (print): | 154:39055 |
| OpenAlex: | W2127063435 |