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Non-palindromic (C^C^D) gold(III) pincer complexes are not accessible by intramolecular oxidative addition of biphenylenes – an experimental and quantum chemical study

Feuerstein, Wolfram 1; Breher, Frank 1
1 Institut für Anorganische Chemie (AOC), Karlsruher Institut für Technologie (KIT)

Abstract:
We herein report on the synthesis of biphenylenes substituted with a pyridine (N), a phosphine (P) and a carbene (C′) donor as well as a carbene donor with additional pyridine in the lateral position. We describe the synthesis and structures of derived gold(I) complexes, which we tried to use for the synthesis of non-palindromic [(C^C^D)AuIII] pincer complexes by means of an intramolecular oxidative addition of the strained biphenylene ring. However, the anticipated formation of gold(III) complexes failed due to kinetic and thermodynamic reasons, which we extensively investigated by quantum chemical calculations. Furthermore, we shed light on the oxidative addition of biphenylene to two different gold(I) systems reported in the literature. Our comprehensive quantum-chemical analysis is complemented by NMR experiments.


Verlagsausgabe §
DOI: 10.5445/IR/1000135504
Veröffentlicht am 28.06.2022
Originalveröffentlichung
DOI: 10.1039/d1dt00953b
Scopus
Zitationen: 1
Web of Science
Zitationen: 1
Dimensions
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Anorganische Chemie (AOC)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1477-9226, 1477-9234
KITopen-ID: 1000135504
Erschienen in Dalton transactions
Verlag Royal Society of Chemistry (RSC)
Band 50
Heft 28
Seiten 9754-9767
Vorab online veröffentlicht am 09.06.2021
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Scopus
Web of Science
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