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Stable bidentate silylene adducts of alkaline‐earth amides

Sun, Xiaofei 1; Hinz, Alexander ORCID iD icon 1; Gamer, Michael T. 1; Roesky, Peter W. 1
1 Institut für Anorganische Chemie (AOC), Karlsruher Institut für Technologie (KIT)

Abstract:

The coordination chemistry of silylenes is known for a vast number of elements of all blocks of the periodic table. However, only a handful of examples of silylene complexes have been reported for heavy alkaline-earth elements, which is mainly attributed to the “hard-soft” mismatch between the “hard” metal center and the “soft” silicon donor. Herein, we report the synthesis and characterization of a series of alkaline-earth silylene complexes comprising a bidentate pyridyl-amido-silylene ligand. The isolated Ca, Sr and Ba complexes show considerably increased stability in comparison to other known alkaline-earth silylene complexes. The molecular structures of all three complexes are essentially similar. Interestingly, depending on the central metal, the 1H NMR chemical shifts of the ortho-H atom show unexpected large differences. DFT computations were conducted to elucidate this trend in the NMR resonances.


Verlagsausgabe §
DOI: 10.5445/IR/1000149111
Veröffentlicht am 27.07.2022
Originalveröffentlichung
DOI: 10.1002/zaac.202200104
Scopus
Zitationen: 2
Web of Science
Zitationen: 2
Dimensions
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Anorganische Chemie (AOC)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2022
Sprache Englisch
Identifikator ISSN: 0044-2313, 1521-3749
KITopen-ID: 1000149111
Erschienen in Zeitschrift für anorganische und allgemeine Chemie
Verlag John Wiley and Sons
Band 648
Heft 17
Seiten Art.-Nr. e202200104
Vorab online veröffentlicht am 16.05.2022
Nachgewiesen in Scopus
Web of Science
Dimensions
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