Transition from Low to High Iodide and Iodine Concentration States in the Briggs-Rauscher Reaction: Evidence on Crazy Clock Behavior
Само за регистроване кориснике
2018
Аутори
Pagnacco, Maja C.Maksimović, Jelena P.
Potkonjak, Nebojša I.
Božić, Bojan D.
Horvath, Attila K.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The Briggs-Rauscher reaction containing malonic acid may undergo a sudden transition from low (state I) to high iodide and iodine (state concentration states after a well-defined and strongly reproducible oscillatory period. This study clearly shows that even though the time-dependent behavior of the oscillatory state is reproducible, the time lag necessary for the appearance of the state I to state II transition after the system leaves the oscillatory state becomes irreproducible for an individual kinetic run. This crazy clock behavior of the state I to state II transition is identified by repeated experiments in which stirring rate is taken as a control parameter and all other parameters such as initial conditions, temperature, vessel surface, and the age of solution were kept constant. Surprisingly, a better stirring condition does not make the transition reproducible; it simply does not allow the transition to happen at all. The proposed mechanism, additional explanations, and prop...osals for this irreproducibility of state II been presented. Considering the fact that the number of crazy clock reactions is only a few, this study may contribute to a better understanding of fundaments of this phenomenon.
Извор:
Journal of Physical Chemistry. Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory, 2018, 122, 2, 482-491Финансирање / пројекти:
- Динамика нелинеарних физичкохемијских и биохемијских система са моделирањем и предвиђањем њихових понашања под неравнотежним условима (RS-MESTD-Basic Research (BR or ON)-172015)
- Биоинформатички методи за детекцију промотера и теоријско моделовање генских кола (RS-MESTD-Basic Research (BR or ON)-173052)
- Hungarian National Research Fund NKFIH-OTKA [K116591], [GINOP-2.3.2-15-2016-0049]
DOI: 10.1021/acs.jpca.7b11774
ISSN: 1089-5639
PubMed: 29254335
WoS: 000423140800003
Scopus: 2-s2.0-85040764226
Институција/група
VinčaTY - JOUR AU - Pagnacco, Maja C. AU - Maksimović, Jelena P. AU - Potkonjak, Nebojša I. AU - Božić, Bojan D. AU - Horvath, Attila K. PY - 2018 UR - https://vinar.vin.bg.ac.rs/handle/123456789/1919 AB - The Briggs-Rauscher reaction containing malonic acid may undergo a sudden transition from low (state I) to high iodide and iodine (state concentration states after a well-defined and strongly reproducible oscillatory period. This study clearly shows that even though the time-dependent behavior of the oscillatory state is reproducible, the time lag necessary for the appearance of the state I to state II transition after the system leaves the oscillatory state becomes irreproducible for an individual kinetic run. This crazy clock behavior of the state I to state II transition is identified by repeated experiments in which stirring rate is taken as a control parameter and all other parameters such as initial conditions, temperature, vessel surface, and the age of solution were kept constant. Surprisingly, a better stirring condition does not make the transition reproducible; it simply does not allow the transition to happen at all. The proposed mechanism, additional explanations, and proposals for this irreproducibility of state II been presented. Considering the fact that the number of crazy clock reactions is only a few, this study may contribute to a better understanding of fundaments of this phenomenon. T2 - Journal of Physical Chemistry. Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory T1 - Transition from Low to High Iodide and Iodine Concentration States in the Briggs-Rauscher Reaction: Evidence on Crazy Clock Behavior VL - 122 IS - 2 SP - 482 EP - 491 DO - 10.1021/acs.jpca.7b11774 ER -
@article{ author = "Pagnacco, Maja C. and Maksimović, Jelena P. and Potkonjak, Nebojša I. and Božić, Bojan D. and Horvath, Attila K.", year = "2018", abstract = "The Briggs-Rauscher reaction containing malonic acid may undergo a sudden transition from low (state I) to high iodide and iodine (state concentration states after a well-defined and strongly reproducible oscillatory period. This study clearly shows that even though the time-dependent behavior of the oscillatory state is reproducible, the time lag necessary for the appearance of the state I to state II transition after the system leaves the oscillatory state becomes irreproducible for an individual kinetic run. This crazy clock behavior of the state I to state II transition is identified by repeated experiments in which stirring rate is taken as a control parameter and all other parameters such as initial conditions, temperature, vessel surface, and the age of solution were kept constant. Surprisingly, a better stirring condition does not make the transition reproducible; it simply does not allow the transition to happen at all. The proposed mechanism, additional explanations, and proposals for this irreproducibility of state II been presented. Considering the fact that the number of crazy clock reactions is only a few, this study may contribute to a better understanding of fundaments of this phenomenon.", journal = "Journal of Physical Chemistry. Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory", title = "Transition from Low to High Iodide and Iodine Concentration States in the Briggs-Rauscher Reaction: Evidence on Crazy Clock Behavior", volume = "122", number = "2", pages = "482-491", doi = "10.1021/acs.jpca.7b11774" }
Pagnacco, M. C., Maksimović, J. P., Potkonjak, N. I., Božić, B. D.,& Horvath, A. K.. (2018). Transition from Low to High Iodide and Iodine Concentration States in the Briggs-Rauscher Reaction: Evidence on Crazy Clock Behavior. in Journal of Physical Chemistry. Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory, 122(2), 482-491. https://doi.org/10.1021/acs.jpca.7b11774
Pagnacco MC, Maksimović JP, Potkonjak NI, Božić BD, Horvath AK. Transition from Low to High Iodide and Iodine Concentration States in the Briggs-Rauscher Reaction: Evidence on Crazy Clock Behavior. in Journal of Physical Chemistry. Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory. 2018;122(2):482-491. doi:10.1021/acs.jpca.7b11774 .
Pagnacco, Maja C., Maksimović, Jelena P., Potkonjak, Nebojša I., Božić, Bojan D., Horvath, Attila K., "Transition from Low to High Iodide and Iodine Concentration States in the Briggs-Rauscher Reaction: Evidence on Crazy Clock Behavior" in Journal of Physical Chemistry. Part A: Molecules, Spectroscopy, Kinetics, Environment and General Theory, 122, no. 2 (2018):482-491, https://doi.org/10.1021/acs.jpca.7b11774 . .