期刊
JOURNAL OF ORGANOMETALLIC CHEMISTRY
卷 696, 期 20, 页码 3274-3278出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jorganchem.2011.06.030
关键词
N-Heterocyclic carbene; Silver; Gold; Crystal structure; Pincer ligand
Bis-1,3-[2-(diisopropylamino)ethyl]-imidazolium chloride, 1, has been prepared and used as a precursor for the synthesis of the corresponding silver(I) chloride complex 2. The single crystal structure analysis reveals that the complex dimerizes in the solid state. Transmetalation of 2 with (tht)AuBr (tht tetrahydrothiophene) yields the (NHC)Au(I)Brcomplex 3. By treatment with bromine it is oxidized to (NHC)AuBr3, 4, which is obtained as a yellow, microcrystalline powder. The UV-vis spectra of 4 are dependent on the pH-value and suggest a square-pyramidal structure in solution. (C) 2011 Elsevier B.V. All rights reserved.
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