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• W2742390738 endingPage "14930" @default.
• W2742390738 startingPage "14918" @default.
• W2742390738 abstract "The Lewis acidity of perfluorinated trimethylgold (CF3 )3 Au was assessed by theoretical and experimental methods. It was found that the (CF3 )3 Au unit is much more acidic than its nonfluorinated analogue (CH3 )3 Au, and probably sets the upper limit of the acidity scale for neutral organogold(III) species R3 Au. The significant acidity increase on fluorination is in line with the CF3 group being more electron-withdrawing than CH3 . The solvate (CF3 )3 Au⋅OEt2 (1) is presented as a convenient synthon of the unsaturated, 14-electron species (CF3 )3 Au. Thus, the weakly coordinated ether molecule in 1 is readily replaced by a variety of neutral ligands (L) to afford a wide range of (CF3 )3 Au⋅L compounds, which were isolated and characterized. Most of these mononuclear compounds exhibit marked thermal stability. This enhanced stabilization can be rationalized in terms of substantially stronger [Au]-L interactions with the (CF3 )3 Au unit. An affinity scale of this single-site, highly acidic organogold(III) fragment was calculated by DFT methods and experimentally mapped for various neutral monodentate ligands. The high-energy profile calculated for the fluorotropic [Au]-CF3 ⇌F-[Au]←CF2 process makes this potential decomposition path unfavorable and adds to the general stabilization of the fragment." @default.
• W2742390738 created "2017-08-17" @default.
• W2742390738 creator A5010896530 @default.
• W2742390738 creator A5020144197 @default.
• W2742390738 creator A5048153665 @default.
• W2742390738 creator A5060617388 @default.
• W2742390738 creator A5082630205 @default.
• W2742390738 creator A5088402891 @default.
• W2742390738 date "2017-09-26" @default.
• W2742390738 modified "2023-10-17" @default.
• W2742390738 title "(CF₃)₃Au as a Highly Acidic Organogold(<scp>III</scp>) Fragment" @default.
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