Thermal decomposition of some metal chelates of substituted hydrazopyrazolones

Thermal properties of some CoII, NiII and CuII complexes of new substituted pyrimidine compounds

“…second order reaction. The larger E a value compared to that of first peak of other complexes may be due to strong thermal agitation accompanying the water elimination [32]. This points to the existence of the complex in an associated structure through intermolecular hydrogen bonding network and/or intramolecular hydrogen bonding between the coordinated water and the host molecule [33].…”

In vitro anti-leishmanial and anti-fungal effects of new SbIII carboxylates

“…The metal percentages left as metal oxide residues were compared with those determined by analytic metal content determination. Complexes V-VIII exhibited a three-stage decomposition pattern; as a first step, beginning of the weight loss occurred at 180, 178, 171, and 182 C, respectively, because of the escape of one C1 atom; next step of decomposition started at 280°C and extended up to 545°C corresponding to the loss of rest of the ligand's components and formation of metal oxide [ 22 ].…”

Chelating Behaviour of Dihydrothieno[3,4, d] Pyridazine Derivatives with Some Lanthanide and Actinide Metals

“…In the IR spectra of the chelate, an additional band is observed which are not found in the spectra of the free ligands. Of these, the bands around 1030,1031,1032 cm -1 observed in the spectra of UO 2 (II), Th(IV), Sm(III) complexes respectively, which are assigned to the coordinated NO 3 group to metal ion 50,51 . The bands at 1272 cm -1 in the case of La(III) complexes are due to (M-Cl).…”