98%
921
2 minutes
20
The synthesis of [NMe ][AuF ] and [NEt ][AuF ], as well as an improved one-pot synthesis of Cs[AuF ], is reported. The new [AuF ] salts were structurally characterized by single crystal X-ray diffraction, NMR spectroscopy, vibrational spectroscopy, and mass spectrometry. These salts are the first gold(III) fluoride salts that can be isolated in pure form and are convenient to be used in usual organic solvents for subsequent synthesis. The formation of molecular AuF complexes in solution is further reported, characterized as [F Au(NCCH )] at low temperature, as [F Au(py)] and a binuclear derivative which are stable at room temperature. The stability of these species in common organic solvents was investigated and they showed a satisfying stability.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1002/chem.201702663 | DOI Listing |
Molecules
May 2024
College of Chemistry, Jilin Normal University, Siping 136000, China.
J Am Chem Soc
April 2024
Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069) , CNRS/Université Paul Sabatier, 118 Route de Narbonne, 31062 Toulouse, Cedex 09, France.
MeDalphos Au(I) complexes featuring aryl, alkynyl, and alkyl groups readily react with electrophilic fluorinating reagents such as -fluorobenzenesulfonimide and Selectfluor. The ensuing [(MeDalphos)Au(R)F] complexes have been isolated and characterized by multinuclear NMR spectroscopy as well as X-ray diffraction. They adopt a square-planar contra-thermodynamic structure, with F to N.
View Article and Find Full Text PDFChemistry
September 2023
Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie - Anorganische Chemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195, Berlin, Germany.
We report on a comprehensive reactivity study starting from [AuF (SIMes)] to synthesize different motifs of monomeric gold(III) fluorides. A plethora of different ligands has been introduced in a mono-substitution yielding trans-[AuF X(SIMes)] including alkynido, cyanido, azido, and a set of perfluoroalkoxido complexes. The latter were better accomplished via use of perfluorinated carbonyl-bearing molecules, which is unprecedented in gold chemistry.
View Article and Find Full Text PDFChem Rev
July 2021
Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain.
In this contribution, we provide an overview of the main avenues that have emerged in gold coordination chemistry during the last years. The unique properties of gold have motivated research in gold chemistry, and especially regarding the properties and applications of gold compounds in catalysis, medicine, and materials chemistry. The advances in the synthesis and knowledge of gold coordination compounds have been possible with the design of novel ligands becoming relevant motifs that have allowed the preparation of elusive complexes in this area of research.
View Article and Find Full Text PDFChemistry
December 2020
Fachbereich Biologie, Chemie, Pharmazie, Institut für Chemie und Biochemie-Anorganische Chemie, Fabeckstr. 34/36, 14195, Berlin, Germany.
Trifluoromethylation of [AuF (SIMes)] with the Ruppert-Prakash reagent TMSCF in the presence of CsF yields the product series [Au(CF ) F (SIMes)] (x=1-3). The degree of trifluoromethylation is solvent dependent and the ratio of the species can be controlled by varying the stoichiometry of the reaction, as evidenced from the F NMR spectra of the corresponding reaction mixtures. The molecular structures in the solid state of trans-[Au(CF )F (SIMes)] and [Au(CF ) (SIMes)] are presented, together with a selective route for the synthesis of the latter complex.
View Article and Find Full Text PDF