1997
DOI: 10.1002/anie.199708881
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The First Transition Metal Complex of a Silaborane

Abstract: An unprecedented structural motif for metallaboranes is exhibited by the anion [{HFe(MeSiB10H10)}2]2− (see picture), which was isolated as the {nBu4N}2 salt in 63% yield from the reaction of deprotonated sila‐nido‐undecaborate and FeBr2.

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Cited by 12 publications
(10 citation statements)
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“…Due to geometric constraints the Rh−B distances of the two boron atoms neighboring the silicon atom are longer [Rh−B3 2.251(9), Rh−B6 2.262(8) Å] than the other Rh−B distances [Rh−B7 2.179(9), Rh−B11 2.196(8) Å]. This situation is known from the X-ray structure investigations of the stannasila- closo -dodecaborate(1−) and the ferrasila- closo -dodecaborate .…”
Section: Resultsmentioning
confidence: 98%
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“…Due to geometric constraints the Rh−B distances of the two boron atoms neighboring the silicon atom are longer [Rh−B3 2.251(9), Rh−B6 2.262(8) Å] than the other Rh−B distances [Rh−B7 2.179(9), Rh−B11 2.196(8) Å]. This situation is known from the X-ray structure investigations of the stannasila- closo -dodecaborate(1−) and the ferrasila- closo -dodecaborate .…”
Section: Resultsmentioning
confidence: 98%
“…This situation is known from the X-ray structure investigations of the stannasila-closododecaborate(1-) 22 and the ferrasila-closo-dodecaborate. 9 The Rh-B distances are known from the dicarbollide ligand coordinated via the pentagonal open face. 12 The small slip distortion of 0.02 Å from the rhodium atom concerning the best plane through Si, B3, B6, B7, B11 and the small angle [4(2)°] between this plane and the cyclopentadienyl ligand confirm the closo geometry of the rhodasila-closo-dodecaborate.…”
Section: X-ray Structural Analysis Of [Ph 3 Pme][4]‚thfmentioning
confidence: 99%
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“…Dieser elfeckige Cluster ist damit eine gut zugängliche Ausgangsverbindung für die Synthese von Übergangsmetallkomplexen mit Silicium-Metall-Wechselwirkung. [4,5] Hier geben wir einen ersten Einblick in den nucleophilen Abbau des o-Silaborans. Unter Angriff eines ¾quivalentes OH À in H 2 O, MeO À in MeOH oder mit reinem NH 3 wurde eine Siliciumecke aus dem closo-Cluster 3 entfernt.…”
unclassified
“…Offensichtlich fungiert die Disilaeinheit als Acceptor, was an Siliciumverbindungen erinnert, die als inverse Chelatliganden auftreten können. [17] Die Sarcodictyine, [1,2] Eleutherobin [3,4] und die Eleuthoside, [5] ihr Taxol-artiger Wirkmechanismus, [6] der durch Tubulin-Polymerisation und Stablisierung der Mikrotubuli zum Tod von Krebszellen führt. Wegen der geringen Verfügbarkeit und der hohen biologischen Aktivität dieser Verbindungen beschäftigen wir uns mit der Synthese dieser Naturstoffe.…”
unclassified