Johnson Chloe L, Storm Daniel J, Sajjad M Arif, Gyton Matthew R, Duckett Simon B, Macgregor Stuart A, Weller Andrew S, Navarro Miquel, Campos Jesús
Department of Chemistry, University of York, York, YO10 5DD, UK.
EaStCHEM School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK.
Angew Chem Int Ed Engl. 2024 Jul 22;63(30):e202404264. doi: 10.1002/anie.202404264. Epub 2024 Jun 20.
Using single-crystal to single-crystal solid/gas reactivity the gold(I) acetylene complex [Au(L1)(η-HC≡CH)][BAr ] is cleanly synthesized by addition of acetylene gas to single crystals of [Au(L1)(CO)][BAr ] [L1=tris-2-(4,4'-di-tert-butylbiphenyl)phosphine, Ar=3,5-(CF)CH]. This simplest gold-alkyne complex has been characterized by single crystal X-ray diffraction, solution and solid-state NMR spectroscopy and periodic DFT. Bonding of HC≡CH with [Au(L1)] comprises both σ-donation and π-backdonation with additional dispersion interactions within the cavity-shaped phosphine.
通过单晶到单晶的固/气反应,向[Au(L1)(CO)][BAr](L1 = 三 - 2 - (4,4'-二叔丁基联苯)膦,Ar = 3,5 - (CF)CH)的单晶中加入乙炔气体,可纯净地合成金(I)乙炔配合物[Au(L1)(η - HC≡CH)][BAr]。这种最简单的金 - 炔配合物已通过单晶X射线衍射、溶液和固态核磁共振光谱以及周期性密度泛函理论进行了表征。HC≡CH与[Au(L1)]的键合包括σ - 给予和π - 反馈,以及在腔状膦内的额外色散相互作用。