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Simulation study of the chlorine dioxide–iodine–malonic acid oscillation reaction. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-021-01996-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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2
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Monteiro E, R. Queiroz JP, Faria RB. The Chlorate-Nitrous Acid-Iodine-Iodide Oscillating Reaction. ACS OMEGA 2021; 6:7959-7965. [PMID: 33778307 PMCID: PMC7992172 DOI: 10.1021/acsomega.1c00933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Accepted: 03/08/2021] [Indexed: 06/12/2023]
Abstract
This work presents a new oscillating reaction based on chlorate and observed in a CSTR at room temperature. This can be the first member of a new family of oscillating reactions. In addition, it is also the first oscillating reaction to use nitrous acid as a reactant. Four different behaviors were observed: simple oscillations, mixed mode oscillations, bursts, and quasiperiodicity. The period of oscillations is very short, which is around 1 s. Together with the fact that it also shows fast bursts, it opens the possibility that it can be used to simulate fast biological events, like the neuron's communications signals.
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Shi L, Gao J, Chen J. Modeling study for oscillatory reaction of chlorite – iodide – ethyl acetoacetate. CAN J CHEM 2014. [DOI: 10.1139/cjc-2014-0072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chlorine dioxide based chemical oscillating behavior was modeled by a simple scheme consisting of three component reactions. Furthermore, little is known about the influence of the pH value. In this study, four component reactions were used to model the chlorite – iodide – ethyl acetoacetate oscillating reaction by dynamic analysis software. The oscillatory phenomenon is observed for concentration changes of triiodide ion, chlorite ion, and hydrogen ion. The initial concentration of ethyl acetoacetate, chlorite ion, iodide ion, and hydrogen ion has great influence on oscillations. The amplitude and number of oscillations are associated with the initial reactant concentrations. The equation of the reaction rate of triiodide ion, chlorite ion, or hydrogen ion changing with reaction time and initial concentrations in the oscillation stage was obtained. The bifurcation surface between oscillatory and nonoscillatory behavior with different pH values was obtained. The spatial zone for the occurrence of oscillation is reduced with an increase in the pH value. The range of oscillation as concentrations of chlorine dioxide, iodine, and ethyl acetoacetate is well described by an equation. There is a lower limit on ethyl acetoacetate initial concentration for oscillation. However, there is a higher limit on chlorine dioxide and iodine concentration for oscillation. The concentrations of chlorine dioxide and iodine for oscillation decrease with an increase in the pH value. The results provide new theoretical evidence of the importance of pH value, which can affect the bifurcation surface between oscillatory and nonoscillatory behavior.
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Affiliation(s)
- Laishun Shi
- School of Chemistry and Chemical Engineering, South Campus, Shandong University, Jinan 250061, P.R. China
| | - Jian Gao
- School of Chemistry and Chemical Engineering, South Campus, Shandong University, Jinan 250061, P.R. China
| | - Jingjing Chen
- School of Chemistry and Chemical Engineering, South Campus, Shandong University, Jinan 250061, P.R. China
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Chlorine Dioxide–Iodine–Sodium Thiosulfate Oscillating Reaction Investigated by the UV–Vis Spectrophotometric Method. J SOLUTION CHEM 2013. [DOI: 10.1007/s10953-013-0028-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shi L, Li N, Liu J, Yan C, Wang X, Huai C. Chlorine Dioxide–Iodide–Methyl Acetoacetate Oscillation Reaction Investigated by UV–Vis and an Online FTIR Spectrophotometric Method. J SOLUTION CHEM 2013. [DOI: 10.1007/s10953-013-9955-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Shi L, Wang X, Li N, Liu J, Yan C. Chlorine dioxide-iodide-methyl acetoacetate oscillation reaction investigated by UV-vis and online FTIR spectrophotometric method. ScientificWorldJournal 2012; 2012:918620. [PMID: 22454614 PMCID: PMC3289901 DOI: 10.1100/2012/918620] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2011] [Accepted: 12/08/2011] [Indexed: 11/17/2022] Open
Abstract
In order to study the chemical oscillatory behavior and mechanism of a new chlorine dioxide-iodide ion-methyl acetoacetate reaction system, a series of experiments were done by using UV-Vis and online FTIR spectrophotometric method. The initial concentrations of methyl acetoacetate, chlorine dioxide, potassium iodide, and sulfuric acid and the pH value have great influence on the oscillation observed at wavelength of 289 nm. There is a preoscillatory or induction period, and the amplitude and the number of oscillations are associated with the initial concentration of reactants. The equations for the triiodide ion reaction rate changing with reaction time and the initial concentrations in the oscillation stage were obtained. Oscillation reaction can be accelerated by increasing temperature. The apparent activation energies in terms of the induction period and the oscillation period were 26.02 KJ/mol and 17.65 KJ/mol, respectively. The intermediates were detected by the online FTIR analysis. Based upon the experimental data in this work and in the literature, a plausible reaction mechanism was proposed for the oscillation reaction.
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Affiliation(s)
- Laishun Shi
- School of Chemistry and Chemical Engineering, Shandong University, South Campus, Jinan 250061, China.
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Experimental Study of Closed System in the Chlorine Dioxide-Iodide-Sulfuric Acid Reaction by UV-Vis Spectrophotometric Method. Int J Anal Chem 2011; 2011:130102. [PMID: 21808646 PMCID: PMC3144668 DOI: 10.1155/2011/130102] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2011] [Accepted: 05/29/2011] [Indexed: 12/05/2022] Open
Abstract
The mole ratio r(r = [I−]0/[ClO2]0) has great influence on ClO2-I−-H2SO4 closed reaction system. By changing the initiate concentration of potassium iodide, the curve of absorbance along with the reaction time was obtained at 350 nm and 297 nm for triiodide ion, and 460 nm for iodine. The changing point of the absorbance curve's shape locates at r = 6.00. For the reaction of ClO2-I− in the absence of H2SO4, the curve of absorbance along with the reaction time can be obtained at 350 nm for triiodide ion, 460 nm for iodine. The mole ratio r is equal to 1.00 is the changing point of the curve's shape no matter at which wavelength to determine the reaction. For the reaction of ClO2-I−-H+ in different pH buffer solution, the curve of absorbance along with the reaction time was recorded at 460 nm for iodine. When r is greater than 1.00, the transition point of the curve's shape locates at pH 2.0, which is also the point of producing chlorite or chloride for chlorine dioxide at different pH. When r is less than 1.00, the transition point locates at pH 7.0.
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Experimental study of a closed system in the sodium chlorite–iodine–ethyl acetoacetate oscillation reaction by UV–Vis and online FTIR spectrophotometric method. RESEARCH ON CHEMICAL INTERMEDIATES 2011. [DOI: 10.1007/s11164-011-0318-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Experimental Study of a Closed System in the Chlorine Dioxide–Iodine–Ethyl Acetoacetate–Sulfuric Acid Oscillation Reaction by UV-vis and Online FTIR Spectrophotometric Methods. J SOLUTION CHEM 2011. [DOI: 10.1007/s10953-011-9675-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shi L, Guo F, Yan C. Experimental study of a closed system in the chlorine dioxide–iodine–ethyl acetoacetate–sulfuric acid oscillation reaction by UV–vis and online FTIR spectrophotometric methods. RESEARCH ON CHEMICAL INTERMEDIATES 2010. [DOI: 10.1007/s11164-010-0164-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vanag VK, Epstein IR. Periodic perturbation of one of two identical chemical oscillators coupled via inhibition. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2010; 81:066213. [PMID: 20866507 DOI: 10.1103/physreve.81.066213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2010] [Indexed: 05/29/2023]
Abstract
We study perturbation with period T(p) of one of two model Belousov-Zhabotinsky chemical oscillators diffusively coupled through an inhibitory species. We find a variety of resonance regimes, characterized as N1:N2:n , where N1 (N2) and n are the numbers of spikes of the perturbed (unperturbed) oscillator and the external perturbation, respectively, per global period T(G). The resonance mode is determined primarily by the ratios T(p)/T0 and T(p)/T(C), where T0 and T(C) are the periods of a single oscillator and of two coupled antiphase oscillators, respectively (T(C)≅2T0 at large coupling strength). The period of the perturbed oscillator can be tuned over a wide range (from T0 to >10T0) by varying T(p) between T(C) and T0.
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Affiliation(s)
- Vladimir K Vanag
- Department of Chemistry, Brandeis University, Waltham, Massachusetts 02454, USA
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Shi L, Li W, Wang F. Experimental Study of a Closed System in the Chlorine Dioxide-Iodine-Malonic Acid-Sulfuric Acid Oscillation Reaction by UV-vis Spectrophotometric Method. J SOLUTION CHEM 2009. [DOI: 10.1007/s10953-009-9391-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Affiliation(s)
- Irving R Epstein
- Department of Chemistry and Volen Center for Complex Systems, MS 015, Brandeis University, Waltham, MA 02454-9110, USA.
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Voslar M, Schreiber I. Thresholds of excitability in three-dimensional dynamical systems. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2005; 72:016216. [PMID: 16090075 DOI: 10.1103/physreve.72.016216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2005] [Indexed: 05/03/2023]
Abstract
A two-dimensional threshold surface of an excitable system is found as a set of threshold trajectories calculated step by step in cross sections of the phase space. The method leads to a highly nonlinear boundary value problem that can be solved numerically with the use of adaptive multiple shooting and continuation methods. We demonstrate this technique by examining a model of a biochemical oscillator with two positive feedbacks. Generalization to arbitrary dimension is discussed.
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Affiliation(s)
- Michal Voslar
- Department of Chemical Engineering and Center for Nonlinear Dynamics of Chemical and Biological Systems, Prague Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic
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Kim KR, Shin KJ, Lee DJ. Complex oscillations in a simple model for the Briggs-Rauscher reaction. J Chem Phys 2004; 121:2664-72. [PMID: 15281867 DOI: 10.1063/1.1711591] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Complex oscillations in a simple model of the Briggs-Rauscher reaction mechanism in a continuously stirred tank reactor proposed by Kim et al. [J. Chem. Phys. 117, 2710 (2002)] are investigated numerically. The k(0)-[CH(2)(COOH)(2)](0) phase diagram is constructed first where k(0) is the flow rate and [...](0) is the input concentration. Within the region surrounded by the Hopf bifurcation curve, we find complex oscillation regions which are again separated from the regular oscillation region by the secondary Hopf bifurcation curves. Mixed mode oscillations with an incomplete Farey sequence, periodic-chaotic (or nonperiodic) sequence, and various types of burst oscillations are observed in complex oscillation regions. Also, chaotic burst oscillations, which are due to the transition from one kind of burst to another kind, are reported.
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Affiliation(s)
- Kyoung-Ran Kim
- School of Chemistry, Seoul National University, Seoul 151-747, Korea
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Dolnik M, Banks AS, Epstein IR. Oscillatory Chemical Reaction in a CSTR with Feedback Control of Flow Rate. J Phys Chem A 1997. [DOI: 10.1021/jp970728a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Milos Dolnik
- Department of Chemistry and Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02254-9110
| | - Alexander S. Banks
- Department of Chemistry and Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02254-9110
| | - Irving R. Epstein
- Department of Chemistry and Center for Complex Systems, Brandeis University, Waltham, Massachusetts 02254-9110
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Dolnik M, Epstein IR. A coupled chemical burster: The chlorine dioxide–iodide reaction in two flow reactors. J Chem Phys 1993. [DOI: 10.1063/1.465081] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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