Synthesis, structural characterization, catalytic, thermal and electrochemical investigations of bidentate Schiff base ligand and its metal complexes

Synthesis, Characterization and Crystal Structures of Mixed-Ligand Complexes of [Cu(bipy)₂N₃(ClO₄)] and [Cu(5,5’-DiMebipy)₂(N₃)](ClO₄)

“…The presence of water molecules in the crystal lattice was revealed by the bands at 3439 cm -1 and 3453 cm -1 respectively for the complexes [34][35]. The coordination of the azide ligand and the perchlorate anion to complex (1) is supported by the bands observed at 623 cm -1 and 420 cm -1 respectively for the ν(Cu-N) and ν(Cu-O) which is similar to reported systems [36][37][38][39][40][41][42].…”

“…The molar conductance data in acetonitrile at room temperature [ Table 5] supported the crystallographic elucidation of the structure of [Cu(bipy)2N3(OClO3)] (1) which is a non-electrolyte and carried no counter ion while (2) with a perchlorate counter ion on the other hand is a 1:1 electrolyte [39,57]. This observation corroborates the coordination of the perchlorate anion in (1) to the Cu atom Fig.1 and Fig.…”

Synthesis of novel NO type bis(diazoimine)–metal complexes supported on mesoporous silica: Microwave assisted catalytic oxidation of cyclohexane, cyclooctane, cyclohexene and styrene

“…Meanwhile, polymer-supported metal complexes have some advantages in catalytic reaction process. So they are both high selectivity for desired product and their easy separation property from the reaction mixture in the oxidation of organic compounds [6][7][8][9][10][11][12][13][14][15]. The catalytic activities of polymer supported azo-containing Schiff bases' complexes are also stable even if they are both in the presence of moisture and at the high temperature [9,[10][11][12].…”

“…Metal ions diffuse through the SiO 2 channels, and react with the ligands. Importantly, well dispersed silica-supported Cu(II) and Ni(II) complexes showed a good catalytic activity as a result of having a huge surface on the silica particles and its cavities as an internal and external surface as seen in Fig 3. [ 6,9,[12][13]15,[25][26][27]. EDX results showed that the metal ions were supported on the silica-supported ligands given in Fig 4. …”

“…In this study, slightly optimized catalysis conditions from our previous and the other studies were applied in the oxidation experiments [12,13,23,27,30,[35][36][37]43]. In the optimized catalytic process, 100 mg synthesized complex, 2 mmol substrate, 4 mmol H 2 O 2 (Merck, 35%) were mixed in 5 mL acetonitrile in QV-50S quartz vessels and microwaved for 60 min at 100°C with power controlled instrument set to max.…”