Kinetic of the thermal decomposition of disubstituted tetroxanes
The thermal decomposition of diphenyl diperoxide (DFT) and dibutanal diperoxide (DPG) were investigated over the temperature range 130 to 166°C. They were found to be first order with a high degree of conversion (60%). Arrhenius parameters were calculated: activation energy, 108 kJ mol-1 and pre-ex...
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International Journal of Current Research
2023
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| Acceso en línea: | http://repositorio.unne.edu.ar/handle/123456789/51646 |
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I48-R184-123456789-51646 |
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I48-R184-123456789-516462025-03-06T11:04:15Z Kinetic of the thermal decomposition of disubstituted tetroxanes Bordón, Alexander Germán Pila, Andrea Natalia Jorge, María Josefa Jorge, Lilian Cristina Profeta, Mariela Inés Romero, Jorge Marcelo Jorge, Nelly Lidia Mechanism Energy Thermolusis The thermal decomposition of diphenyl diperoxide (DFT) and dibutanal diperoxide (DPG) were investigated over the temperature range 130 to 166°C. They were found to be first order with a high degree of conversion (60%). Arrhenius parameters were calculated: activation energy, 108 kJ mol-1 and pre-exponential factor, 6.5 109 s -1 for DFT and 80.8 kJ mol-1 and pre-exponential factor, 1.8 109 s - 1 for DPG. The principle decomposition products were aldehyde (about 1.9 mole per mole DFT and 2.0 mole per mole DPG) and oxygen molecule. All observations were interpreted in terms of decomposition pathways initiated by O-O homolysis. The corresponding activation parameters for the reaction of DFT in methanol (ΔH0# = 103.8 ± 3.3 kJ mol-1 ; ΔS0# = -69.9 ± 7.5 J mol-1 K -1 ; ΔG0# = 133.1 ± 3.3 kJ mol-1 ) were compared with values obtained for PDG thermolysis in the same solvents (ΔH0# = 75.4 ± 2.9 kJ mol-1 ; ΔS0# = -189.2 ± 2.5 J mol-1 K -1 ; ΔG0# = 157.4 ± 2.9 kJ mol-1 ). Furthermore, the pertinent substituent effect on the peroxidic bond strength of those molecules in solution was evaluated. 2023-06-08T13:10:13Z 2023-06-08T13:10:13Z 2016 Artículo Bordón, Alexander Germán, Pila, Andrea Natalia y Jorge, María Josefa, 2016. Kinetic of the thermal decomposition of disubstituted tetroxanes. International Journal of Current Research. India: International Journal of Current Research, vol. 8, no. 10. p. 39788-39791. E-ISSN 0975-833X. 0975-833X http://repositorio.unne.edu.ar/handle/123456789/51646 eng openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 39788-39791 application/pdf International Journal of Current Research International Journal of Current Research, 2016, vol. 8, no. 10, p. 39788-39791. |
| institution |
Universidad Nacional del Nordeste |
| institution_str |
I-48 |
| repository_str |
R-184 |
| collection |
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) |
| language |
Inglés |
| topic |
Mechanism Energy Thermolusis |
| spellingShingle |
Mechanism Energy Thermolusis Bordón, Alexander Germán Pila, Andrea Natalia Jorge, María Josefa Jorge, Lilian Cristina Profeta, Mariela Inés Romero, Jorge Marcelo Jorge, Nelly Lidia Kinetic of the thermal decomposition of disubstituted tetroxanes |
| topic_facet |
Mechanism Energy Thermolusis |
| description |
The thermal decomposition of diphenyl diperoxide (DFT) and dibutanal diperoxide (DPG) were investigated over the temperature range 130 to 166°C. They were found to be first order with a high
degree of conversion (60%). Arrhenius parameters were calculated: activation energy, 108 kJ mol-1 and pre-exponential factor, 6.5 109 s
-1
for DFT and 80.8 kJ mol-1 and pre-exponential factor, 1.8 109 s
- 1
for DPG. The principle decomposition products were aldehyde (about 1.9 mole per mole DFT and
2.0 mole per mole DPG) and oxygen molecule. All observations were interpreted in terms of
decomposition pathways initiated by O-O homolysis. The corresponding activation parameters for the
reaction of DFT in methanol (ΔH0# = 103.8 ± 3.3 kJ mol-1
; ΔS0# = -69.9 ± 7.5 J mol-1 K
-1
; ΔG0# =
133.1 ± 3.3 kJ mol-1
) were compared with values obtained for PDG thermolysis in the same solvents
(ΔH0# = 75.4 ± 2.9 kJ mol-1
; ΔS0# = -189.2 ± 2.5 J mol-1 K
-1
; ΔG0# = 157.4 ± 2.9 kJ mol-1
).
Furthermore, the pertinent substituent effect on the peroxidic bond strength of those molecules in
solution was evaluated. |
| format |
Artículo |
| author |
Bordón, Alexander Germán Pila, Andrea Natalia Jorge, María Josefa Jorge, Lilian Cristina Profeta, Mariela Inés Romero, Jorge Marcelo Jorge, Nelly Lidia |
| author_facet |
Bordón, Alexander Germán Pila, Andrea Natalia Jorge, María Josefa Jorge, Lilian Cristina Profeta, Mariela Inés Romero, Jorge Marcelo Jorge, Nelly Lidia |
| author_sort |
Bordón, Alexander Germán |
| title |
Kinetic of the thermal decomposition of disubstituted tetroxanes |
| title_short |
Kinetic of the thermal decomposition of disubstituted tetroxanes |
| title_full |
Kinetic of the thermal decomposition of disubstituted tetroxanes |
| title_fullStr |
Kinetic of the thermal decomposition of disubstituted tetroxanes |
| title_full_unstemmed |
Kinetic of the thermal decomposition of disubstituted tetroxanes |
| title_sort |
kinetic of the thermal decomposition of disubstituted tetroxanes |
| publisher |
International Journal of Current Research |
| publishDate |
2023 |
| url |
http://repositorio.unne.edu.ar/handle/123456789/51646 |
| work_keys_str_mv |
AT bordonalexandergerman kineticofthethermaldecompositionofdisubstitutedtetroxanes AT pilaandreanatalia kineticofthethermaldecompositionofdisubstitutedtetroxanes AT jorgemariajosefa kineticofthethermaldecompositionofdisubstitutedtetroxanes AT jorgeliliancristina kineticofthethermaldecompositionofdisubstitutedtetroxanes AT profetamarielaines kineticofthethermaldecompositionofdisubstitutedtetroxanes AT romerojorgemarcelo kineticofthethermaldecompositionofdisubstitutedtetroxanes AT jorgenellylidia kineticofthethermaldecompositionofdisubstitutedtetroxanes |
| _version_ |
1832345179529412608 |