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- W2321822585 endingPage "8662" @default.
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- W2321822585 abstract "Gold nanoparticles (Au NPs) have been synthesized using simple thermolysis, whether from the mesophase or from toluene solutions, of mesogenic alkynyl–isocyanide gold complexes [Au(C≡C–C6H4–CmH2m+1)(C≡N–C6H4–O–CnH2n+1)]. The thermal decomposition from the mesophase is much slower than from solution and produces a more heterogeneous size distribution of the nanoparticles. Working in toluene solution, the size of nanoparticles can be modulated from ∼2 to ∼20 nm by tuning the chain lengths of the ligands present in the precursor. Different experimental conditions have been analyzed to reveal the processes governing the formation of the gold nanoparticles. Experiments on the effect of adding ligands or bubbling oxygen support that the thermal decomposition is a bimolecular process that starts by decoordination of the isocyanide ligand, producing an oxidative coupling of the akynyl group to [R–C≡C–C≡C–R] and reduction of gold(I) to gold(0) as nanoparticles. The nanoparticles obtained behave as a catalyst in the oxidation of isocyanide (CNR) to isocyanate (OCNR), which in turn cooperates to catalyze the decomposition." @default.
- W2321822585 created "2016-06-24" @default.
- W2321822585 creator A5003703994 @default.
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- W2321822585 creator A5068898215 @default.
- W2321822585 date "2011-08-04" @default.
- W2321822585 modified "2023-09-25" @default.
- W2321822585 title "Alkynylisocyanide Gold Mesogens as Precursors of Gold Nanoparticles" @default.
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- W2321822585 doi "https://doi.org/10.1021/ic201210p" @default.
- W2321822585 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21815613" @default.
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