TY - JOUR
T1 - Thermal behaviour of the n-donor adducts of metal saccharinates III. Imidazole saccharinates of Co(II), Ni(II) and Cd(II)
AU - Naumov, P.
AU - Jordanovska, V.
AU - Boyanov, B.
AU - Jovanovski, G.
N1 - Funding Information:
The financial help from the Ministry of Science of the Republic of Macedonia is gratefully acknowledged.
PY - 2001
Y1 - 2001
N2 - The complexes [M(HIm)4(H2O)2](sac)2 (M=Co, Ni) and [Cd(HIm)2(sac)2]2 saccharin (sac) and imidazole (HIm) were synthesized and their thermal (TG, DTG and DTA) behaviour in the interval from room temperature up to 1000°C in a static air atmosphere was investigated. Irrespectively of whether the deprotonated saccharinato residues are present as ligands or ions or both as ligands and ions, the anhydrous complexes regularly decompose in two stages. The thermal data of 16 saccharinato complexes (including the title compounds) were correlated with the respective structural data. The general thermal stability order of the saccharinato complexes can be represented as: Pb(II)<Zn(II)<Co(II)≤Ni(II)<Cd(II) (the stability of the Cu saccharinates depends on the particular compound) and is dictated by several structural factors, e.g. metal ionic radii, participation of the water in the coordination sphere of the metal and other structural characteristics.
AB - The complexes [M(HIm)4(H2O)2](sac)2 (M=Co, Ni) and [Cd(HIm)2(sac)2]2 saccharin (sac) and imidazole (HIm) were synthesized and their thermal (TG, DTG and DTA) behaviour in the interval from room temperature up to 1000°C in a static air atmosphere was investigated. Irrespectively of whether the deprotonated saccharinato residues are present as ligands or ions or both as ligands and ions, the anhydrous complexes regularly decompose in two stages. The thermal data of 16 saccharinato complexes (including the title compounds) were correlated with the respective structural data. The general thermal stability order of the saccharinato complexes can be represented as: Pb(II)<Zn(II)<Co(II)≤Ni(II)<Cd(II) (the stability of the Cu saccharinates depends on the particular compound) and is dictated by several structural factors, e.g. metal ionic radii, participation of the water in the coordination sphere of the metal and other structural characteristics.
KW - N-donor aromatic adducts
KW - Saccharinates
KW - Thermal decomposition
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U2 - 10.1023/A:1013194932578
DO - 10.1023/A:1013194932578
M3 - Article
AN - SCOPUS:0035211377
VL - 66
SP - 469
EP - 477
JO - Journal of Thermal Analysis and Calorimetry
JF - Journal of Thermal Analysis and Calorimetry
SN - 1388-6150
IS - 2
M1 - 393275
ER -