Kinetic parameters of the non-isothermal decomposition of Cu(II) chelates of o-hydroxychalcones

Reactions of 2'-hydroxy methoxylated chalcone with group 6 and 8 metal carbonyl complexes under sunlight irradiation: Synthesis, characterization, spectroscopic investigation and biological activities

“…On the other hand, osmium complex exhibit three bands at 2126, 2037 and 1958 cm -1 due to terminal carbonyls of cluster complex. 1 H NMR of the osmium complex showed signals similar to that of the ligand with shift of OH signal from 12.82 of the ligand to 12.75 ppm . On the other hand, the 1 H-NMR spectra of the ruthenium complex showed no signal due to the paramagnetic characteristics of the ruthenium complex.…”

“…Chalcones and their analogues are well known for having variable germicidal 1 , bactericidal 2 , fungicidal 3 , anti-inflamatory 4 , antihyperglycemic 5 and carcenogenic activity [6][7][8] . A wide range of pharmacological activities have been identified for various chalcones.…”

Thermal Decomposition Kinetics of Ni(II) Chelates of Substituted Chalcones

“…Extensive conjugation was found to be responsible for the strong field nature of the ligand. 9 Chalcones usually exhibit germicidal 10 bactericidal, 11 fungicidal 12 and carcinogenic activities. 13 In continuation of our earlier work [14][15][16][17][18][19] on thermal decomposition kinetics of metal chelates, the present investigation deals the thermal stability of the Nickel chelates of 3 -(phenyl) -1 -( 2'hydroxynaphthyl ) -2 -propen -1 -one (PHPO) , 3 -( 4 -chlorophenyl ) -1-(2'-hydroxynaphthyl ) -2 -propen -1 -one (CPHPO), 3 -( 4 -methoxyphenyl ) -1 -(2'-hydroxynapthyl ) -2-propen -1-one (MPHPO), 3-(3,4-dimethoxyphenyl)-1-(2'-hydroxynaphthyl)-2-propen-1-one (DMPHPO) and evaluation of kinetic parameters employing the differential Freeman-Carroll equation 20 the integral method using the Coats-Redfern equation 21 and the approximation method using the Horowitz-Metzger equation.…”