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Titel: Low-Valent Mx Al3 Cluster Salts with Tetrahedral [SiAl3 ]+ and Trigonal-Bipyramidal [M2 Al3 ]2+ Cores (M=Si/Ge)
VerfasserIn: Dabringhaus, Philipp
Zedlitz, Silja
Giarrana, Luisa
Scheschkewitz, David
Krossing, Ingo
Sprache: Englisch
Titel: Angewandte Chemie : International Edition
Bandnummer: 62 (2023)
Heft: 8
Verlag/Plattform: Wiley
Erscheinungsjahr: 2022
Freie Schlagwörter: Aluminium
Bond Theory
Cluster Compounds
Silicon
Weakly-Coording Anions
DDC-Sachgruppe: 500 Naturwissenschaften
Dokumenttyp: Journalartikel / Zeitschriftenartikel
Abstract: Schnöckel's [(AlCp*)4] and Jutzi's [SiCp*][B(C6F5)4] (Cp*=C5Me5) are landmarks in modern main-group chemistry with diverse applications in synthesis and catalysis. Despite the isoelectronic relationship between the AlCp* and the [SiCp*]+ fragments, their mutual reactivity is hitherto unknown. Here, we report on their reaction giving the complex salts [Cp*Si(AlCp*)3][WCA] ([WCA]−=[Al(ORF)4]− and [F{Al(ORF)3}2]−; RF=C(CF3)3). The tetrahedral [SiAl3]+ core not only represents a rare example of a low-valent silicon-doped aluminium-cluster, but also—due to its facile accessibility and high stability—provides a convenient preparative entry towards low-valent Si−Al clusters in general. For example, an elusive binuclear [Si2(AlCp*)5]2+ with extremely short Al−Si bonds and a high negative partial charge at the Si atoms was structurally characterised and its bonding situation analysed by DFT. Crystals of the isostructural [Ge2(AlCp*)5]2+ dication were also obtained and represent the first mixed Al−Ge cluster.
DOI der Erstveröffentlichung: 10.1002/anie.202215170
URL der Erstveröffentlichung: https://doi.org/10.1002/anie.202215170
Link zu diesem Datensatz: urn:nbn:de:bsz:291--ds-393312
hdl:20.500.11880/35454
http://dx.doi.org/10.22028/D291-39331
ISSN: 1521-3773
1433-7851
Datum des Eintrags: 20-Mär-2023
Bezeichnung des in Beziehung stehenden Objekts: Supporting Information
In Beziehung stehendes Objekt: https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fanie.202215170&file=anie202215170-sup-0001-misc_information.pdf
https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fanie.202215170&file=anie202215170-sup-0001-SI_CpSiAlCp3%2B_alfal_baddata-finalcif.cif
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https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fanie.202215170&file=anie202215170-sup-0001-SI_GeCpstern%2B_alfal-checkcif.pdf
https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fanie.202215170&file=anie202215170-sup-0001-SI_GeCpstern%2B_pf--finalcif.pdf
https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fanie.202215170&file=anie202215170-sup-0001-SI_GeCpstern%2B_pf-.cif
https://onlinelibrary.wiley.com/action/downloadSupplement?doi=10.1002%2Fanie.202215170&file=anie202215170-sup-0001-SI_Si2AlCp5_2%2B_pf--checkcif.pdf
Fakultät: NT - Naturwissenschaftlich- Technische Fakultät
Fachrichtung: NT - Chemie
Professur: NT - Prof. Dr. David Scheschkewitz
Sammlung:SciDok - Der Wissenschaftsserver der Universität des Saarlandes



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