Gold chemistry has developed extensively in the past decade, and a dozen good reviews have been presented discussing this progress. Few however have paid close attention to the progress in organic synthesis of dinuclear gold-catalysis. A dinuclear gold catalyst is defined here as a gold complex with two gold centers linked by a bidentate ligand. With theoretical analysis and some representative studies in recent years, this comprehensive review highlights the particular properties of dinuclear gold-complexes, especially aurophilic interactions, and systematically summarizes the recent achievements of dinuclear gold-catalyzed coupling reactions, asymmetric catalysis, and photocatalysis, where dinuclear gold catalysts tend to show a greater advantage than the mononuclear gold catalysts.
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http://dx.doi.org/10.1039/d0cs00254b | DOI Listing |
J Phys Chem A
January 2025
Facultad de Ciencias, Departamento de Químicas, Universidad de Chile, Casilla 653, Santiago 1025000, Chile.
We present a study of the cooperative nature of the forces dominating the interaction between gold atoms and aryl-aryl stacking. For this purpose, we modeled a series of complexes of the type dpm(AuR) (dpm= bis(phoshino)methane; R = -CH, -CF, -CCl, and -Cl). The models were calculated at the MP2, CCSD(T), and DFT-D3(BJ) (PBE and TPSS) levels of theory.
View Article and Find Full Text PDFChemistry
November 2024
Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076, Tübingen, Germany.
Terphenylgermanium Ar*Ge [Ar*=CH(2,6-Trip), Trip=2,4,6-CHiPr] was found to act as a novel μ-Ge-bis(hexahapto-Trip) bridging ligand. Deprotonated terphenyl germanium trihydride [Li(thf)][Ar*GeH] (1) undergoes reductive elimination and transfer of hydrogen in reaction with dimeric [(COD)RhCl] to yield the dinuclear complex [Ar*GeRh(COE)RhCl(COD)] (2). Subsequent chloride abstraction from compound 2 using Na[BAr ] or Li[Al(OBu)] results in the cationic complexes [Ar*GeRh(COE)Rh(COD)][WCA] (3) {WCA: [BAr ] (Ar=CH-3,5-(CF)), [Al(OBu)]}.
View Article and Find Full Text PDFEur J Med Chem
January 2025
School of Science, STEM College, RMIT University, Melbourne, Victoria, 3001, Australia. Electronic address:
Four new mononuclear gold (I) compounds of the type [AuL{κC-2-CHP(S)Ph}] {L = PTA (1), PPh (2), PPh(CH-3-SONa) (3), and PPh(2-py) (4)} were prepared by scission of the dinuclear compound [Au{μ-2-CHP(S)Ph}] by L or via a transmetalation reaction using the organotin reagent 2-MeSnCHP(S)Ph and a suitable gold halide precursor. The cytotoxic potential of complexes 1-4 was evaluated against four human cancer cell lines of diverse cellular origin: cervical (HeLa), prostate (PC-3), non-small cell lung adenocarcinoma (A549), and fibrosarcoma (HT-1080). The in vitro cytotoxicity results showed that 1 demonstrated exceptional anticancer activity with IC values ranging from 0.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
January 2025
Shenzhen Key Laboratory of New Information Display and Storage Materials, Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, College of Materials Science and Engineering, Shenzhen University, 518055, Shenzhen, P. R. China.
Multi-resonance (MR) type emitters have emerged as highly promising candidates for high-resolution organic light-emitting diodes (OLEDs). However, thermally activated delayed fluorescence (TADF) emissions with simultaneous short excited state lifetimes and ultrapure blue color (a CIE close to 0.046 and an emission peak >440 nm) have rarely been obtained for MR emitters.
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October 2024
Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, PR China.
Two-coordinate Au(I) complexes with a donor-metal-acceptor (D-M-A) structure have shown rich luminescent properties. However, charge-neutral dinuclear donor-metal-acceptor type Au(I) complexes featuring aurophilic interactions have been seldom explored. Herein, we describe the structures and photoluminescence properties of two dinuclear Au(I) complexes, namely DiAu-Ph and DiAu-Me.
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