Synthetic Route of C5H3Br2NIn 2021 ,《Electronic and geometric structure effects on one-electron oxidation of first-row transition metals in the same ligand framework》 appeared in Dalton Transactions. The author of the article were Boniolo, Manuel; Chernev, Petko; Cheah, Mun Hon; Heizmann, Philipp A.; Huang, Ping; Shylin, Sergii I.; Salhi, Nessima; Hossain, Kamal Md; Gupta, Arvind K.; Messinger, Johannes; Thapper, Anders; Lundberg, Marcus. The article conveys some information:
Developing new transition metal catalysts requires understanding of how both metal and ligand properties determine reactivity. Since metal complexes bearing ligands of the Py5 family (2,6-bis-[(2-pyridyl)methyl]pyridine) were employed in many fields in the past 20 years, authors set out here to understand their redox properties by studying a series of base metal ions (M = Mn, Fe, Co, and Ni) within the Py5OH (pyridine-2,6-diylbis[di-(pyridin-2-yl)methanol]) variant. Both reduced (MII) and the one-electron oxidized (MIII) species were carefully characterized using a combination of x-ray crystallog., x-ray absorption spectroscopy, cyclic voltammetry, and d.-functional theory calculations The observed metal-ligand interactions and electrochem. properties do not always follow consistent trends along the periodic table. this observation cannot be explained by only considering orbital and geometric relaxation, and spin multiplicity changes needed to be included into the DFT calculations to reproduce and understand these trends. In addition, exchange reactions of the sixth ligand coordinated to the metal, were analyzed. Finally, by including published data of the extensively characterized Py5OMe (pyridine-2,6-diylbis[di-(pyridin-2-yl)methoxymethane])complexes, the special characteristics of the less common Py5OH ligand were extracted This comparison highlights the non-innocent effect of the distal OH functionalization on the geometry, and consequently on the electronic structure of the metal complexes. Together, this gives a complete anal. of metal and ligand degrees of freedom for these base metal complexes, while also providing general insights into how to control electrochem. processes of transition metal complexes. The experimental part of the paper was very detailed, including the reaction process of 2,6-Dibromopyridine(cas: 626-05-1Synthetic Route of C5H3Br2N)
2,6-Dibromopyridine(cas: 626-05-1) belongs to pyridine. The basicity and metallophilic high donor number of these π-deficient systems has long favored them as ligands in metal catalysis. The last decade saw pyridine assume a stronger role as functional group for directed C–H oxidation/activation.Synthetic Route of C5H3Br2N