Synthesis, structures and photoluminescence properties of silver complexes of cyclic (alkyl)(amino)carbenes

Romanov, Alexander S. and Bochmann, Manfred (2017) Synthesis, structures and photoluminescence properties of silver complexes of cyclic (alkyl)(amino)carbenes. Journal of Organometallic Chemistry, 847. pp. 114-120. ISSN 0022-328X

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Abstract

Silver complexes of cyclic (alkyl)(amino)carbenes (CAACs), (RL)nAgX (n = 1, X = Cl, Br, I; n = 2, X = OTf; R = Me2, Et2, or adamantyl) are accessible in high yields by reacting free carbenes with silver salts. The smaller carbene ligand Me2L leads to the formation of a mixture of neutral (Me2L)AgCl and cationic [(Me2L)2Ag]+ products. The transmetallation of (AdL)AgCl with copper and gold halides gives the corresponding copper and gold compounds (AdL)MCl (M = Cu and Au) in a clean and quantitative reaction. Whereas (Me2L)AgCl is monomeric in the solid state, (Et2L)AgCl crystallizes as a Cl-bridged dimer. None of the compounds show metal-metal interactions. The complexes show blue photoluminescence, which consists of a fluorescence component with a lifetime of several nanoseconds, as well as a long-lived emission in the microsecond regime.

Item Type: Article
Uncontrolled Keywords: silver complex,photoluminescence,carbene,transmetallation,crystal structure
Faculty \ School: Faculty of Science > School of Chemistry
Depositing User: Pure Connector
Date Deposited: 03 Mar 2017 01:41
Last Modified: 13 Nov 2020 00:52
URI: https://ueaeprints.uea.ac.uk/id/eprint/62838
DOI: 10.1016/j.jorganchem.2017.02.045

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