30123-12-7Relevant articles and documents
Facile Route to Silver Triarene Borate Salts, [Ag(arene)3][B(C6F5)4]: Thermodynamics, Structure, and Bonding
Ibad, Muhammad Farooq,Schulz, Axel,Villinger, Alexander
, p. 1445 - 1458 (2019)
A facile synthesis and full characterization of a series of [Ag(arene)3][B(C6F5)4] salts (arene = C6H6, MeC6H5, EtC6H5, i-PrC6H5
Ranking Ligands by Their Ability to Ease (C6F5)2NiIIL → Ni0L + (C6F5)2Coupling versus Hydrolysis: Outstanding Activity of PEWO Ligands
Ponce-De-León, Jaime,Gioria, Estefania,Martínez-Ilarduya, Jesús M.,Espinet, Pablo
supporting information, p. 18287 - 18294 (2020/12/23)
The NiII literature complex cis-[Ni(C6F5)2(THF)2] is a synthon of cis-Ni(C6F5)2 that allows us to establish a protocol to measure and compare the ligand effect on the NiII → Ni0 reductive elimination step (coupling), often critical in catalytic processes. Several ligands of different types were submitted to this Ni-meter comparison: Bipyridines, chelating diphosphines, monodentate phosphines, PR2(biaryl) phosphines, and PEWO ligands (phosphines with one potentially chelate electron-withdrawing olefin). Extremely different C6F5-C6F5 coupling rates, ranging from totally inactive (producing stable complexes at room temperature) to those inducing almost instantaneous coupling at 25 °C, were found for the different ligands tested. The PR2(biaryl) ligands, very efficient for coupling in Pd, are slow and inefficient in Ni, and the reason for this difference is examined. In contrast, PEWO type ligands are amazingly efficient and provide the lowest coupling barriers ever observed for NiII complexes; they yield up to 96% C6F5-C6F5 coupling in 5 min at 25 °C (the rest is C6F5H) and 100% coupling with no hydrolysis in 8 h at-22 to-53 °C.
Catalysis with Pnictogen, Chalcogen, and Halogen Bonds
Benz, Sebastian,Poblador-Bahamonde, Amalia I.,Low-Ders, Nicolas,Matile, Stefan
supporting information, p. 5408 - 5412 (2018/03/23)
Halogen- and chalcogen-based σ-hole interactions have recently received increased interest in non-covalent organocatalysis. However, the closely related pnictogen bonds have been neglected. In this study, we introduce conceptually simple, neutral, and mon
