Synthesis, characterization, electrochemical behavior, and catalytic activity of cobalt(II) metal complexes with pincer-type methylbenzamide derivative ligands

Palladium complexes containing NNN pincer type ligands and their activities in Suzuki-Miyaura cross coupling reaction

“…In the 1 H NMR spectrum of pincer ligands, amide proton signals appeared at δ 10.93, 10.90, 10.93, 10.87, 11.75 ppm, respectively, for the H 2 L 1-5 compounds [ 38 ]. Due to the electronegative nature of the nitro group, the amide proton of the H 2 L 5 compound was resonated in the lower field ( δ 11.75 ppm).…”

Ru(II) and Ru(III) complexes containing N‐acylthiourea ligands: Supramolecular structures and synthons, reduction, and reaction pathway of aromatic nitro compounds

“…The hydrogen atom (H27) on the Cg(5) ring interacts as a perpendicular edge to face the Cg(7) centroid, and the intermolecular interaction propagates along the b-axis in Figure 3a. Similarly, the C23-H23ÁÁÁCg(8) and C35-H35ÁÁÁCg (7) interactions that propagate along the c-axis in Figure 3b are also arranged as a perpendicular edge to face. Additionally, noncovalent hydrogen bond interactions play a crucial role in the stability of the crystal structure of the [RuCl 2 (PPh 3 ) 2 L 1 ] complex (Figure 3b).…”

“…[RuCl 2 (PPh 3 ) 2 L 1 ] contains intramolecular hydrogen bonds through the hydrogen atom with nitrogen, chlorine, sulfur, and oxygen atoms that generate fused five-and six-membered ring systems (Figure 2). Van der Waals interactions between aromatic rings (Cg (7) and Cg(8)) with hydrocarbons (C-HÁÁÁπ interaction) and the chloride atom with hydrocarbons (C-HÁÁÁCl interaction) lead to the formation of a molecular cluster in [RuCl 2 (PPh 3 ) 2 L 1 ] (Figure 3). The hydrogen atom (H27) on the Cg(5) ring interacts as a perpendicular edge to face the Cg(7) centroid, and the intermolecular interaction propagates along the b-axis in Figure 3a.…”

“…The processes of product generation and substrate activation in catalytic reactions can be affected structurally by complexes of functional group-containing ligands, which can also receive or donate protons and alter the electronic configuration of the metal center. [1][2][3][4][5][6][7] This synergistic effect of ligand and metal is an important factor in catalyst design, 2 and these complexes based on 'synergistic' ligands exhibit remarkable catalytic efficiency in a wide variety of chemical transformations. [8][9][10] The benzoylthiourea derivatives have more than one potential atom for coordination with oxygen, nitrogen, and sulfur atoms and thus can act as monodentate, bidentate, or polydentate ligands.…”