31535-89-4Relevant articles and documents
An Active-Site Sulfonate Group Creates a Fast Water Oxidation Electrocatalyst That Exhibits High Activity in Acid
Nash, Aaron G.,Breyer, Colton J.,Vincenzini, Brett D.,Elliott, Gregory I.,Niklas, Jens,Poluektov, Oleg G.,Rheingold, Arnold L.,Smith, Diane K.,Musaev, Djamaladdin G.,Grotjahn, Douglas B.
, p. 1540 - 1545 (2021)
The storage of solar energy in chemical bonds will depend on pH-universal catalysts that are not only impervious to acid, but actually thrive in it. Whereas other homogeneous water oxidation catalysts are less active in acid, we report a catalyst that maintained high electrocatalytic turnover frequency at pH values as low as 1.1 and 0.43 (kcat=1501±608 s?1 and 831±254 s?1, respectively). Moreover, current densities, related to catalytic reaction rates, ranged from 15 to 50 mA cm?2 mM?1 comparable to those reported for state-of-the-art heterogeneous catalysts and 30 to 100 times greater than those measured for two prominent literature homogeneous catalysts at pH 1.1 and 0.43. The catalyst also exhibited excellent durability when a chemical oxidant was used (CeIV, 7400 turnovers, TOF 0.88 s?1). Preliminary computational studies suggest that the unusual active-site sulfonate group acts a proton relay even in strong acid, as intended.
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Halcrow,Kermack
, p. 155 (1946)
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Synthesis of Novel Chiral Phenanthroline Ligands and a Copper Complex
Li, Jian,Tang, Jingjing,Yang, Xueyan,Zhang, Zhipeng
, (2021/11/26)
A novel class of chiral multidentate ligands has been designed and synthesized from the important classic ligand 1,10-phenanthroline and amino acids. The ligands were proven to be able to coordinate with copper(2+) ion by the formation of a novel chiral c
Direct arylation of phenanthroline derivatives via oxidative C-H/C-H cross-coupling: Synthesis and discovery of excellent ligands
Li, Bijin,Qin, Xurong,You, Jingsong,Cong, Xuefeng,Lan, Jingbo
supporting information, p. 1290 - 1293 (2013/05/09)
A concise synthetic protocol for aryl functionalized phenanthrolines has been developed. It was demonstrated that 3,8-diphenyl-1,10-phenanthroline (7a) is competent in promoting transition-metal-free direct arylation and 2,3,8,9-tetraphenyl-1,10-phenanthroline (8a) is a highly efficient ligand in the in situ Pd-catalysed Heck reaction.