Synthesis, spectral, thermal, potentiometric and antimicrobial studies of transition metal complexes of tridentate ligand

Synthesis, Spectral and Biological Studies of Cu(II), Ni(II), Fe(III), Co(II), Mn(II) and Cd(II) Complexes of 3-Acetyl-4-hydroxy-6-methyl-2Hpyran-2-one Schiff Base Derived from 3-Amino-1,2,4-triazole

“…The FeO is obtained as the end product at 474°C as showed in DTA curve. All the complexes finally decomposed to their metal oxides [9,10,18].…”

A Study on Antitubercular and Antimicrobial Activity of Isoniazid Derivative

“…The band due to the imine group ν (C = N) mode of ligand at 1602 cm -1 . In complex, the lactone carbonyl stretching has shifted to lower wave number by 32-75cm -1 indicating its involvement in coordination [19]. Also, shift of (N-N) band to the higher frequency region can be taken as an additional evidence for the participation of azomethine group incoordination [20].…”

“…Aromatic protons of the ligand appear well within the expected range. A quartet at 4.04 ppm [3J (H, H) = 6.95 Hz] is assigned to the -OCH2 protons, coupling with the -CH3 protons, while a triplet at 1.33 ppm [3J (H, H) = 6.95 Hz] is assigned to the -CH3 protons, coupling with the -OCH2 protons [19].…”

Synthesis, characterization, fluorescence and catalytic activity of some new complexes of unsymmetrical Schiff base of 2-pyridinecarboxaldehyde with 2,6-diaminopyridine

“…The triply split band maxima at 1146, 1112, 1086 cm À1 and the medium band at 630 cm À1 appeared in the IR spectrum of samarium complex were attributed to the bidentately coordinated perchlorate anion [35][36][37]. The band at 1383 cm À1 in the IR spectrum of La(III) complex indicated the existence of free nitrate group in the coordination sphere [38]. The appearance of new bands in the IR spectra of the complexes in the region 414-430 cm À1 were assigned to m (M-N) stretching vibrations.…”