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Synthesis, Crystal Structure, Thermal and Explosive Properties of [Cd(SCZ)3(H2O)](PA)2·3H2O (SCZ = Semicarbazide, PA = Picrate).
- Source :
-
Zeitschrift für Anorganische und Allgemeine Chemie . Jun2015, Vol. 641 Issue 7, p1225-1229. 5p. - Publication Year :
- 2015
-
Abstract
- The heptacoordinate transition metal coordination compound [Cd(SCZ)3(H2O)](PA)2 ·3H2O ( 1) with the ligand semicarbazide (SCZ) and the counteranion picrate (PA) was synthesized and characterized by elemental analysis and FTIR spectroscopy. Single-crystal X-ray diffraction analysis revealed that 1 crystallizes in the monoclinic space group P21/ c. The Cd2+ ion is heptacoordinated by three SCZ groups and a water molecule. SCZ presents typical bidentate coordination modes. The thermal decomposition mechanism of 1 was studied by differential scanning calorimetry (DSC), which revealed that complex 1 exhibits three small endothermic and two large exothermic processes. The non-isothermal kinetics parameters were calculated by the Kissinger's method and Ozawa-Doyle's method, respectively. The heat of combustion was measured by oxygen bomb calorimetry. The enthalpy of formation, the critical temperature of thermal explosion, the entropy of activation (Δ S≠), the enthalpy of activation (Δ H≠), and the free energy of activation (Δ G≠) were also calculated. Sensitivity tests revealed that 1 is insensitive to mechanical stimuli. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CRYSTAL structure
*THERMODYNAMICS
*COMBUSTION
*RADIOGRAPHY
*X-rays
Subjects
Details
- Language :
- English
- ISSN :
- 00442313
- Volume :
- 641
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Zeitschrift für Anorganische und Allgemeine Chemie
- Publication Type :
- Academic Journal
- Accession number :
- 103342807
- Full Text :
- https://doi.org/10.1002/zaac.201400607