Complexes of lanthanide nitrates with 4n-(2′-hydroxy benzylidene)-aminoantipyrine

Synthesis, physico-chemical and thermal characteristics of seven and ten coordinated complexes of trivalent lanthanides derived from 4[N-(cinnamalidene)amino]antipyrine semicarbazone and diphenyl sulfoxide

“…It was just possible that the splitting of the lowest excited state of Sm( 6 H 7/2 ) might have given an altered value of the magnetic moment, but this effect was not observed. Thus the magnetic moments of the new complexes reported herein are within the range predicted and observed in the compounds of paramagnetic ions as reported earlier [12][13][14].…”

“…On complexation, this band is shifted towards the lower frequency region, clearly indicating the coordination through the azomethine N-atom [19][20][21]. In far infrared region the bands due to ν(Ln-N)/ν(Ln-O) are also observed [22][23][24][25]. Sulfoxides act as an electron pair donor forming molecular adducts or complexes with a variety of acceptor molecules.…”

Synthesis, Spectral and Biological Properties of Copper (Ii) Complexes of Thiosemicarbazones of Schiff Bases Derived From 4-Aminoantipyrine and Aromatic Aldehydes.

“…Practically no effect on these frequencies after complexation precludes the possibility of complexation at this group. The absorption at ∼ 1600 cm −1 in the free ligands can be attributed to (C=N) stretching vibrations of imine nitrogen, which is in agreement with the observations of previous authors [30,31]. On complexation, these frequencies were observed to be shifted to lower wave number (Tables 3 and 4).…”

Synthesis, Characterization and Antimicrobial Activity of Cu(II), Co(II), Ni(II), Pd(II) and Ru(III) Complexes with Clomiphene Citrate

“…The ESR studies were performed by using a spectroelectrochemical cell. 1 H-NMR spectra were taken for the ligand and its complexes using AMX-400 FT-NMR spectrophotometer. The 1 H-NMR spectra were recorded employing TMS as a reference and DMSO-d 6 as a solvent at ambient temperature.…”

“…The chemistry of transition metal complexes has received much attention in recent years on account of their rational design and synthesis in coordination chemistry, also because of their potential applications as functional materials [1], enzymatic reaction mechanism [2] and in bioinorganic chemistry [3]. The transition metal complexes with nitrogen donors are applied in various activities such as anticancer, antitubercular, antibiotic, antimicrobial and antifungal agents [4,5].…”