2017
DOI: 10.1002/ange.201709700
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[SnBi3]5− – ein Carbonat‐Analogon aus Metallatomen

Abstract: Das neue Polyanion [SnBi 3 ] 5À wurde aus der Reaktion von K 3 Bi 2 mit K 4 Sn 9 oder K 12 Sn 17 in flüssigem Ammoniak erhalten. Das Anion ist iso(valenz)elektronischu nd strukturell analog zum Carbonation. Trotz der hohen negativen Ladung des Anions sind die Sn-Bi-Bindungslängen zwi-schenE infach-und Zweifachbindung angesiedelt. Quantenchemische Rechnungen auf DFT-PBE0/def2-TZVPP/ COSMO-Level zeigen einen partiellen Doppelbindungscharakter zwischen den Atomen der schweren Hauptgruppenelemente Bi und Sn, der v… Show more

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Cited by 8 publications
(14 citation statements)
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“…Similar results have been obtained with [Ge 9 ] 4– and [Sn 9 ] 4– containing compounds . The preparation of this compound was not intended and the source of the hydroxide was not finally identified, most probably it was introduced accidentally by a contaminated batch of moist ammonia, which was the only common ingredient in the related experiments including Ge or Sn clusters , . Because the otherwise easily emerging hydroxide‐free ammoniate 1 did not appear in this experiment we assume a favoring effect of hydroxide for crystal growth.…”
Section: Discussionsupporting
confidence: 81%
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“…Similar results have been obtained with [Ge 9 ] 4– and [Sn 9 ] 4– containing compounds . The preparation of this compound was not intended and the source of the hydroxide was not finally identified, most probably it was introduced accidentally by a contaminated batch of moist ammonia, which was the only common ingredient in the related experiments including Ge or Sn clusters , . Because the otherwise easily emerging hydroxide‐free ammoniate 1 did not appear in this experiment we assume a favoring effect of hydroxide for crystal growth.…”
Section: Discussionsupporting
confidence: 81%
“…The tetrel Zintl compounds are sensitive against decomposition in presence of water, however, [Si 9 ] 4– units can exist with small amounts at the basic conditions in ammoniac solution as proven by the finding of the hydroxide‐containing compound 4 . Similar results have been obtained with [Ge 9 ] 4– and [Sn 9 ] 4– containing compounds . The preparation of this compound was not intended and the source of the hydroxide was not finally identified, most probably it was introduced accidentally by a contaminated batch of moist ammonia, which was the only common ingredient in the related experiments including Ge or Sn clusters , .…”
Section: Discussionsupporting
confidence: 76%
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“…We obtained the highly charged carbonate analogue [SnBi 3 ] 5even from solution. [2] Phases with the highly charged [TrPn 3 ] 6anions consequently have a high alkali metal content for charge compensation, such as in Na 6 GaPn 3 (Pn = P, As) [3,4] K 6 InPn 3 (Pn = P, counterbalancing the charges and fill the space between the anionic units. According to the Zintl-Klemm concept charge balance is reached if an almost equal ratio of single and double-bonded Bi 2 dumbbells are present according to (K + ) 10…”
Section: Introductionmentioning
confidence: 99%
“…Ru(-II)-Verbindungen sind selten, wurden aber in Isonitril- [37] und Bisphosphinin-Komplexen [38] gefunden, wohingegen dem einzigen bisher bekannten Intermetalloid-Cluster [Ru@Ge 12 ] 3À Ru(-I) zugeschrieben wurde. [14c] Die Untersuchung anderer [Sn 9 ]-Cluster zeigt verschiedene Strukturen fürd ie leeren, die Co-gefüllten und die Nigefüllten 22-Elektronen-Cluster,n ämlich C 4v für[ Sn 9 ] 4À [31] und [Ni@Sn 9 ] 4À [18a,b] sowie fürd en partiell oxidierten [Co 0.68 @Sn 9 ] 4À -Cluster mit 21 SE, [15c] während [Cu@Sn 9 ] 3À D 3h -symmetrisch ist. [13] In allen Fällen isolierter [Sn 9 ]-Einheiten sind die Abstände zwischen dem Übergangsmetall und dem Dach-Sn-Atom generell deutlich länger als die anderen TM-Sn-Bindungen.…”
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