Molecular Polyarsenides of the Rare-Earth Elements

Nicholas Arleth, Michael T. Gamer, Ralf Köppe, Sergey N. Konchenko, Martin Fleischmann, Manfred Scheer, Peter W. Roesky

Результат исследования: Научные публикации в периодических изданияхстатья

20 Цитирования (Scopus)

Аннотация

Reduction of [Cp∗Fe(η5-As5)] with [Cp″2Sm(thf)] (Cp″=η5-1,3-(tBu)2C5H3) under various conditions led to [(Cp″2Sm)(μ,η44-As4)(Cp∗Fe)] and [(Cp″2Sm)2As7-(Cp∗Fe)]. Both compounds are the first polyarsenides of the rare-earth metals. [(Cp″2Sm)(μ,η44-As4)(Cp∗Fe)] is also the first d/f-triple decker sandwich complex with a purely inorganic planar middle deck. The central As42- unit is isolobal with the 6π-aromatic cyclobutadiene dianion (CH)42-. [(Cp″2Sm)2As7(Cp∗Fe)] contains an As73- cage, which has a norbornadiene-like structure with two short As-As bonds in the scaffold. DFT calculations confirm all the structural observations. The As-As bond order inside the cyclo As4 ligand in [(Cp″2Sm)(μ,η44-As4)(Cp∗Fe)] was estimated to be in between an As-As single bond and a formally aromatic As42- system.

Язык оригиналаанглийский
Страницы (с-по)1557-1560
Число страниц4
ЖурналAngewandte Chemie - International Edition
Том55
Номер выпуска4
DOI
СостояниеОпубликовано - 22 янв 2016

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  • Цитировать

    Arleth, N., Gamer, M. T., Köppe, R., Konchenko, S. N., Fleischmann, M., Scheer, M., & Roesky, P. W. (2016). Molecular Polyarsenides of the Rare-Earth Elements. Angewandte Chemie - International Edition, 55(4), 1557-1560. https://doi.org/10.1002/anie.201509749