Effects of appended hydroxyl groups and ligand chain length on copper coordination and oxidation activity

Abstract

The effects of appended hydroxyl groups and the chain length of a series of (imino)pyridine ligands on copper coordination and copper-catalyzed aerobic oxidation of alcohols were investigated.

Band Offsets, Optical Conduction, and Microwave Band Filtering Characteristics of γ‐In2Se3/CuO Heterojunctions

“…At the same time as the ionic radius of Cu (0.73 [ 12 ] ) is smaller than that of In, Cu can also occupy vacant sites of In (0.94 Å [ 13 ] ) at the ultrathin surface. In addition, the bond lengths of In—In, Se—Se, Cu—Cu, In—Se, Cu—Se, Cu—O, and In—O are 2.82, [ 14 ] 2.37, [ 15 ] 3.64, [ 16 ] 2.68, [ 17 ] 2.46, [ 18 ] 1.85, [ 19 ] and 2.16 Å, [ 20 ] respectively. When comparing bond lengths for In—Se and In—O one finds that the bond length for In—Se is larger than the bond length of In—O.…”

Synthesis and Structures of Ruthenium Carbonyl Complexes Bearing Pyridine-Alkoxide Ligands and Their Catalytic Activity in Alcohol Oxidation

“…It is well-known that transition metal complexes play a crucial role in oxidation process. Many transition metal catalysts including ruthenium (Shapley et al, 2000; Lybaert et al, 2017; Sarbajna et al, 2017; Moore et al, 2019), palladium (Stahl, 2004; Sigman and Jensen, 2006; Ho et al, 2018), copper (Velusamy et al, 2006; Jehdaramarn et al, 2018; Lagerspets et al, 2019), and iron (Coleman et al, 2010; Stanje et al, 2018) have been reported for promoting the oxidation of alcohols. Among them, ruthenium compounds are intensively studied because of their rich structures and various valence states.…”

Five‐coordinate dinuclar cobalt (II), copper (II), zinc (II) and cadmium (II) complexes with 4‐bromo‐N‐(2‐pyridinylmethylene)benzenamine: Synthesis, characterisation and methyl methacrylate polymerization

“…[1][2][3] These complexes showed various coordination modes up to the tetradentate. [4][5][6] Their structural stability and catalytic efficiency made them useful mainly in the area of structural studies, [7] photoluminescence, [8][9][10] spectroscopy, [11] transfer hydrogenation reactions, [12] biological applications, [13] oxidation catalyst, [14] catalysts for alkene polymerization, [15] epoxidation, [16] olefin [17,18] and MMA polymerizations. [19] Poly (methylmethacrylate) (PMMA), an acrylic polymer, is commonly used as a thermoplastic with enhanced optical properties and wide range of industrial applications.…”

“…These complexes showed various coordination modes up to the tetradentate . Their structural stability and catalytic efficiency made them useful mainly in the area of structural studies, photoluminescence, spectroscopy, transfer hydrogenation reactions, biological applications, oxidation catalyst, catalysts for alkene polymerization, epoxidation, olefin and MMA polymerizations…”