706819-98-9Relevant articles and documents
Carbon dioxide cleavage by a Ni2 complex supported by a binucleating bis(N-heterocyclic carbene) framework Dedicated to Prof. John E. Bercaw on the occasion of his 70th birthday.
Tsui, Emily Y.,Agapie, Theodor
, p. 103 - 110 (2014)
A binucleating bis(N-heterocyclic carbene) ligand was designed as a means to coordinate and proximally constrain two transition metal centers. Using an imidazopyridine-based NHC afforded a framework structurally related to previously reported para-terphenyl diphosphines. Bimetallic copper, cobalt, and nickel complexes supported by this framework were synthesized and structurally characterized. Strong interactions between the metal centers and the central arene were observed in all nickel complexes. Dinickel(0) complexes of this ligand framework were found to react with CO2 to form a dicarbonyl-bridged dinickel(0) product, demonstrating facile CO2 reduction.
Non-symmetrical, potentially redox non-innocent imino NHC pyridine 'pincers': Via a zinc ion template-assisted synthesis
Simler, Thomas,Danopoulos, Andreas A.,Braunstein, Pierre
, p. 5955 - 5964 (2017/07/10)
New non-symmetrical, redox-active imino NHC pyridine pincer ligands, 2-(R1-imidazol-2-ylidene)-6-(R2NCH)-pyridine (R1 = 2,6-diisopropylphenyl (DiPP), R2 = 2,4,6-trimethylphenyl (Mes), 4B; R1 = R2 = DiPP, 4C), have been accessed by a ZnII-promoted modular synthesis involving the quaternization of R1-imidazole by [Zn(κNimineκNpyridine)(2-(R2NCH)-6-bromo-pyridine)Cl2], followed by ZnII removal and deprotonation of imidazolium pro-ligands. Redox active forms of 4B were implicated in the two complexes obtained by its reaction with FeBr2/KC8; metrical data analysis pointed to the occurrence of radical anionic and dianionic redox states of 4B.
Metal-to-ligand alkyl migration inducing carbon-sulfur bond cleavage in dialkyl yttrium complexes supported by thiazole-containing amidopyridinate ligands: Synthesis, characterization, and catalytic activity in the intramolecular hydroamination reaction
Lyubov, Dmitry M.,Luconi, Lapo,Rossin, Andrea,Tuci, Giulia,Cherkasov, Anton V.,Fukin, Georgy K.,Giambastiani, Giuliano,Trifonov, Alexander A.
, p. 3487 - 3499 (2014/04/03)
Neutral YIII dialkyl complexes supported by tridentate N -,N,N monoanionic methylthiazole- or benzothiazole-amidopyridinate ligands have been prepared and completely characterized. Studies on their stability in solution revealed prog