A Gold(I)-Acetylene Complex Synthesised using Single-Crystal Reactivity

Angew Chem Int Ed Engl. 2024 May 3:e202404264. doi: 10.1002/anie.202404264. Online ahead of print.ABSTRACTUsing single-crystal to single-crystal solid/gas reactivity the gold(I) acetylene complex [Au(L1)(η2-HC≡CH)][BArF4] is cleanly synthesized by addition of acetylene gas to single crystals of [Au(L1)(CO)][BArF4] [L1 = tris-2-(4,4'-di-tert-butylbiphenyl)phosphine, ArF = 3,5-(CF3)2C6H3]. 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.PMID:38699962 | DOI:10.1002/anie.202404264

Source: Angewandte Chemie - May 3, 2024 Category: Chemistry Authors: Chloe L Johnson Daniel J Storm Muhammad Arif Sajjad Matthew R Gyton Simon B Duckett Stuart A Macgregor Andrew S Weller Miquel Navarro Jesus Campos Source Type: research