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The complexes [OsCl2(azole)2(dmso)2] and [OsCl2(azole)(dmso)3]: Synthesis, structure, spectroscopic properties and catalytic hydration of chloronitrilesстатья
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: Stepanenko I.N., Cebrián-Losantos B., Arion V.B., Krokhin A.A., Nazarov A.A., Keppler B.K.
- Журнал: European Journal of Inorganic Chemistry
- Номер: 3
- Год издания: 2007
- Издательство: John Wiley & Sons Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 400
- Последняя страница: 411
- DOI: 10.1002/ejic.200600859
- Аннотация: Two families of mixed-ligand osmium(II) complexes, namely trans,cis,cis-[OsIICl2(azole)2(dmso) 2] [azole = indazole (1), pyrazole (2), benzimidazole (3) and imidazole (4)] and cis,fac-[OsIICl2(azole)(dmso) 3] [azole = indazole (5), pyrazole (6), benzimidazole (7) and imidazole (8)] have been prepared by taking advantage of the destabilising trans effect of the S-bonded dmso ligands. These complexes have been characterised by microanalysis, IR, UV/Vis, 1H and 13C NMR spectroscopy, electrospray mass spectrometry, cyclic voltammetry and X-ray crystallography. They have been found to catalyse the hydration of trichloroacetonitrile to trichloroacetamide and dichloroacetonitrile to dichloroacetamide with high selectivity. The catalyst efficiency depends strongly on the nature of the complex and the azole ligand present. The highest turnover (TON of 412 for trichloroacetamide and 578 for dichloroacetamide) and product yield (82.7 % for trichloroacetamide and 75.3% for dichloroacetamide) have been achieved with complex 7. © Wiley-VCH Verlag GmbH & Co. KGaA, 2007.
- Добавил в систему: Назаров Алексей Анатольевич