Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Facile access to dimeric heavier aluminum chalcogenides [(NHC)Al(Tipp)-μ-Ch] (NHC=IiPr (1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene, IMe (1,3,4,5-tetramethylimidazol-2-ylidene); Tipp=2,4,6-iPr C H ; Ch=Se, Te) by treatment of NHC-stabilized aluminum dihydrides with elemental Se and Te is reported. The higher affinity of IMe in comparison with IiPr toward the Al center in [(NHC)Al(Tipp)-μ-Ch] can be used for ligand exchange. Additionally, the presence of excess IMe allows for cleavage of the dimers to form a rare example of a neutral multiply bonded heavier aluminum chalcogenide in the form of a tetracoordinate aluminum complex, (IMe ) (Tipp)Al=Te. This species reacts with three equivalents of CO across two Al-C and the Al=Te bond affording a pentacoordinate aluminum complex containing a dianionic tellurocarbonate ligand [CO Te] , which is the first example of tellurium analogue of a carbonate [CO ] .
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/anie.202216021 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
An Aluminum Telluride with a Terminal Al=Te Bond and its Conversion to an Aluminum Tellurocarbonate by CO Reduction.
Angew Chem Int Ed Engl
March 2023
School of Natural Sciences, Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München, Lichtenbergstr. 4, 85748, Garching bei München, Germany.
Facile access to dimeric heavier aluminum chalcogenides [(NHC)Al(Tipp)-μ-Ch] (NHC=IiPr (1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene, IMe (1,3,4,5-tetramethylimidazol-2-ylidene); Tipp=2,4,6-iPr C H ; Ch=Se, Te) by treatment of NHC-stabilized aluminum dihydrides with elemental Se and Te is reported. The higher affinity of IMe in comparison with IiPr toward the Al center in [(NHC)Al(Tipp)-μ-Ch] can be used for ligand exchange. Additionally, the presence of excess IMe allows for cleavage of the dimers to form a rare example of a neutral multiply bonded heavier aluminum chalcogenide in the form of a tetracoordinate aluminum complex, (IMe ) (Tipp)Al=Te.
View Article and Find Full Text PDFDouble insertion of CO into an Al-Te multiple bond.
Chem Commun (Camb)
March 2021
School of Chemical and Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand.
We report the [Al(NON)(Te)(THF)] anion containing a terminal aluminium telluride bond. DFT calculations confirm appreciable Al-Te multiple bond character and reaction with CO proceeds via a double insertion to afford the previously unknown tellurodicarbonate ligand.
View Article and Find Full Text PDFA monotopic aluminum telluride with an Al=Te double bond stabilized by N-heterocyclic carbenes.
Nat Commun
November 2015
Institut für Chemie, Anorganische und Analytische Chemie, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623 Berlin, Germany.
Aluminum chalcogenides are mostly encountered in the form of bulk aluminum oxides that are structurally diverse but typically consist of networks with high lattice energy in which the chalcogen atoms bridge the metal centres. This makes their molecular congeners difficult to synthesize because of a pronounced tendency for oligomerization. Here we describe the isolation of the monotopic aluminum chalcogenide (L(Dip)N)AlTe(L(Et))2 (L(Dip)=1,3-(2,6-diisopropylphenyl)-imidazolin-2-imine, L(Et)=1,3-diethyl-4,5-dimethyl-imidazolin-2-ylidene).
View Article and Find Full Text PDF