Trinuclear Heterobimetallic Complexes by Stepwise Metalation of a Macrocyclic Tetraimidazolium Salt

Autor:	Christian Schulte to Brinke, F. Ekkehardt Hahn
Rok vydání:	2015
Předmět:	Inorganic Chemistry chemistry.chemical_classification chemistry.chemical_compound Transmetalation chemistry Ligand Metalation Polymer chemistry Salt (chemistry) Photochemistry Carbene Silver oxide
Zdroj:	European Journal of Inorganic Chemistry. 2015:3227-3231
ISSN:	1099-0682 1434-1948
DOI:	10.1002/ejic.201500519
Popis:	A series of trinuclear heterobimetallic AuI/M2 (M = RhIII, IrIII, RuII) complexes were prepared by the stepwise and selective metalation of a rigid cyclic tetraimidazolium salt. Reaction of the tetraimidazolium salt with exactly 1 equivalent of silver oxide and transmetalation of the dicarbene ligand to AuI yielded selectively a mononuclear AuI complex. This complex features an CNHC–Au–CNHC unit obtained by coordination of two N-heterocyclic carbene (NHC) donors placed in diagonal positions within the macrocycle and two non-metalated imidazolium moieties. Subsequent metalation of these imidazolium groups yielded heterobimetallic complexes (AuI/RhIII2, AuI/IrIII2, and AuI/RuII2) with Au···M separations shorter than 5.5 A.
Databáze:	OpenAIRE
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