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Ahirwar MB, Gadre SR, Deshmukh MM. On the Short-Range Nature of Cooperativity in Hydrogen-Bonded Large Molecular Clusters. J Phys Chem A 2023; 127:4394-4406. [PMID: 37186960 DOI: 10.1021/acs.jpca.3c00359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The variation in the hydrogen bond (HB) strength has considerable consequences on the physicochemical properties of molecular clusters. Such a variation mainly arises due to the cooperative/anti-cooperative networking effect of neighboring molecules connected by HBs. In the present work, we systematically study the effect of neighboring molecules on the strength of an individual HB and the respective cooperativity contribution toward each of them in a variety of molecular clusters. For this purpose, we propose a use of a small model of a large molecular cluster called the spherical shell-1 (SS1) model. This SS1 model is constructed by placingg the spheres of an appropriate radius centered on X and Y atoms of the X-H···Y HB under consideration. The molecules falling within these spheres constitute the SS1 model. Utilizing this SS1 model, the individual HB energies are calculated within the molecular tailoring approach-based framework and the results are compared with their actual counterparts. It is found that the SS1 is a reasonably good model of large molecular clusters, providing 81-99% of the total HB energy estimated using the actual molecular clusters. This in turn suggests that the maximum cooperativity contribution toward a particular HB is due to the fewer number of molecules (in the SS1 model) directly interacting with two molecules involved in its formation. We further demonstrate that the remaining part of the energy or cooperativity (∼1 to 19%) is captured by the molecules falling in the second spherical shell (SS2) centered on the hetero-atom of the molecules in the SS1 model. The effect of increasing size of a cluster on the strength of a particular HB, calculated by the SS1 model, is also investigated. The calculated value of the HB energy remains unchanged with the increase in the size of a cluster, emphasizing the short-ranged nature of the HB cooperativity in neutral molecular clusters.
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Affiliation(s)
- Mini Bharati Ahirwar
- Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar 470003, India
| | - Shridhar R Gadre
- Department of Scientific Computing, Modelling, and Simulation, Savitribai Phule Pune University, Pune 411007, India
| | - Milind M Deshmukh
- Department of Chemistry, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar 470003, India
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2
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Beltrán FJ, Chávez AM, Cintas P, Martínez RF. Mechanistic Insights into the Oxidative Degradation of Formic and Oxalic Acids with Ozone and OH Radical. A Computational Rationale. J Phys Chem A 2023; 127:1491-1498. [PMID: 36749871 PMCID: PMC9940222 DOI: 10.1021/acs.jpca.2c08091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Gas-phase and aqueous oxidations of formic and oxalic acids with ozone and OH radicals have been thoroughly examined by DFT methods. Such acids are not only important feedstocks for the iterative construction of other organic compounds but also final products generated by mineralization and advanced oxidation of higher organics. Our computational simulation unravels both common and distinctive reaction channels, albeit consistent with known H atom abstraction pathways and formation of hydropolyoxide derivatives. Notably, reactions with neutral ozone and OH radical proceed through low-energy concerted mechanisms involving asynchronous transition structures. For formic acid, carbonylic H-abstraction appears to be more favorable than the dissociative abstraction of the acid proton. Formation of long oxygen chains does not cause a significant energy penalty and highly oxygenated products are stable enough, even if subsequent decomposition releases environmentally benign side substances like O2 and H2O.
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Affiliation(s)
- Fernando J. Beltrán
- Departamento
de Ingeniería Química y Química Física,
Facultad de Ciencias, and Instituto Universitario de Investigación
del Agua, Cambio Climático y Sostenibilidad, (IACYS), Universidad de Extremadura, Avenida de Elvas s/n, 06006 Badajoz, Spain,
| | - Ana María Chávez
- Departamento
de Ingeniería Química y Química Física,
Facultad de Ciencias, and Instituto Universitario de Investigación
del Agua, Cambio Climático y Sostenibilidad, (IACYS), Universidad de Extremadura, Avenida de Elvas s/n, 06006 Badajoz, Spain
| | - Pedro Cintas
- Departamento
de Química Orgánica e Inorgánica, Facultad de
Ciencias, and Instituto Universitario de Investigación del
Agua, Cambio Climático y Sostenibilidad, (IACYS), Universidad de Extremadura, Avenida de Elvas s/n, 06006 Badajoz, Spain
| | - R. Fernando Martínez
- Departamento
de Química Orgánica e Inorgánica, Facultad de
Ciencias, and Instituto Universitario de Investigación del
Agua, Cambio Climático y Sostenibilidad, (IACYS), Universidad de Extremadura, Avenida de Elvas s/n, 06006 Badajoz, Spain,
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3
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Levanov AV, Isaikina OY. Thermal Stability and Kinetics of Decomposition of Hydrogen Polyoxides H2O3 and H2O4 in Peroxy Radical Condensates. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422060140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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Laskar BI, Shukla PK. Adsorption of HOOO. radical on pristine and doped graphene—a first-principles study. Struct Chem 2021. [DOI: 10.1007/s11224-020-01702-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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5
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Arvelos S, Hori CE. ReaxFF Study of Ethanol Oxidation in O 2/N 2 and O 2/CO 2 Environments at High Temperatures. J Chem Inf Model 2020; 60:700-713. [PMID: 31977206 DOI: 10.1021/acs.jcim.9b00886] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The goal of this study was to investigate the reaction mechanisms linked with the oxy-fuel combustion of ethanol (C2H6O). The oxidation of ethanol in O2/N2 and O2/CO2 environments was examined using reactive molecular dynamics in the temperature range from 2200 to 3000 K at constant density media and O2/fuel ratio equals to 0.5. The main reactions were examined to supply a description of the ethanol oxidation behavior, the main product distribution, and the corresponding time evolution behavior in the atomic scale. It has been noted that the oxidation of C2H6O was initiated mainly from the same routes in both environments generating the same main species. However, the key reaction pathways were different depending on the media. We noticed an increase of CO formation when N2 was replaced by CO2 molecules, increasing the net flux of the following reactions: by CO2 + H → CO + OH and CO2 + CHO → O═COH + CO. This work also studied the effect of increasing O2 concentration (O2/fuel ratio equals to 0.5, 1.0, and 2.0) in O2/CO2 combustion. During the simulations, high oxygenated and unstable species were detected such as carbonates and carboxyl radicals. The change of the O2/fuel ratio from 0.5 to 2.0 lead to an increase of CO2 formation mainly from O2 + O═COH → CO2 + HO2 and O2 + CO → CO2 + O reactions. In addition, the increase of O2 concentration attenuated the effect of CO2 and could increase the occurrence of reactions that lead to flame cessation.
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Affiliation(s)
- Sarah Arvelos
- Faculdade de Engenharia Química, Av. João Naves de Ávila, 2121, Bloco 1K , Universidade Federal de Uberlândia , CEP 38408-144 , Uberlândia , MG , Brazil
| | - Carla Eponina Hori
- Faculdade de Engenharia Química, Av. João Naves de Ávila, 2121, Bloco 1K , Universidade Federal de Uberlândia , CEP 38408-144 , Uberlândia , MG , Brazil
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6
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7
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Guo Z, Xie Y, Xiao J, Zhao ZJ, Wang Y, Xu Z, Zhang Y, Yin L, Cao H, Gong J. Single-Atom Mn–N4 Site-Catalyzed Peroxone Reaction for the Efficient Production of Hydroxyl Radicals in an Acidic Solution. J Am Chem Soc 2019; 141:12005-12010. [DOI: 10.1021/jacs.9b04569] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Zhuang Guo
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Science, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongbing Xie
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Science, Beijing 100190, China
| | - Jiadong Xiao
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, David de Wiedgebouw, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Zhi-Jian Zhao
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering & Technology, Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Yuxian Wang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Beijing 102249, China
| | - Zhaomeng Xu
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Science, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yi Zhang
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Science, Beijing 100190, China
| | - Lichang Yin
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, Shenyang 110016, China
| | - Hongbin Cao
- Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Science, Beijing 100190, China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering & Technology, Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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8
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Dong M, Liu YD, Zhong R. NDMA formation mechanisms from typical hydrazines and hydrazones during ozonation: A computational study. JOURNAL OF HAZARDOUS MATERIALS 2019; 366:370-377. [PMID: 30544038 DOI: 10.1016/j.jhazmat.2018.12.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 12/01/2018] [Accepted: 12/03/2018] [Indexed: 06/09/2023]
Abstract
N-nitrosodimethylamine (NDMA) as the most frequently detected disinfection by-product has aroused widespread concern due to its unusually high carcinogenicity, however, there is still limited understanding of its formation mechanisms. In this study, the formation mechanisms of NDMA from some typical hydrazines and hydrazones with high NDMA conversion yields (60%∼90%) during ozonation, i.e., unsymmetrical dimethylhydrazine (UDMH), 1-formyl-2,2-dimethylhydrazine (FDMH), formaldehyde dimethylhydrazone (FDH) and acetone dimethylhydrazone (ADMH), were investigated by using DFT method with the M05 functional. A new NDMA formation mechanism from hydrazines during ozonation was proposed, in which the initial step is hydrogen abstraction rather than previously reported oxygen addition. For hydrazones, the C atom of the -N = C moiety in hydrazones is preferred to be attacked by ozone to generate N,N-dimethylaminonitrene (DMAN), which is an important intermediate in NDMA formation during ozonation. Moreover, the reactivity order of the following H atoms in hydrogen/hydride ion abstraction (HA) by ozone is -NH2 > -N(CH3)2 > -CO-NH ∼ =C(CH3)2 > =CH-. Additionally, formation pathways of some experimentally detected compounds, i.e., HOOOH, HOOH and HCOH, in the ozonation of hydrazine were elucidated in this study. The results are expected to expand our understanding of NDMA formation mechanisms and ozone reaction characteristics.
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Affiliation(s)
- Meng Dong
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Life Science & Bioengineering, Beijing University of Technology, Beijing, 100124, China
| | - Yong Dong Liu
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Life Science & Bioengineering, Beijing University of Technology, Beijing, 100124, China.
| | - Rugang Zhong
- Beijing Key Laboratory of Environmental and Viral Oncology, College of Life Science & Bioengineering, Beijing University of Technology, Beijing, 100124, China
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9
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Anglada JM, Solé A. Tropospheric oxidation of methyl hydrotrioxide (CH 3OOOH) by hydroxyl radical. Phys Chem Chem Phys 2018; 20:27406-27417. [PMID: 30357171 DOI: 10.1039/c8cp04486d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have employed high level theoretical methods to investigate the oxidation of methyl hydrotrioxide by hydroxyl radical, which is of interest in atmospheric chemistry research. The reaction can proceed by abstraction of either the terminal hydrogen atom of OOH group producing CH3O, O2 and H2O, or one hydrogen atom of the CH3 group forming H2CO, HO2 and H2O. The rate constants for both reactions at 298 K are computed to be 4.7 × 10-11 and 2.1 × 10-12 cm3 molecule-1 s-1, respectively, that is, the abstraction of terminal hydrogen atom of the OOH group is about 22 times faster than that of a hydrogen atom of the CH3 group. The rate constant for the overall CH3OOOH + OH reaction is computed to be 4.9 × 10-11 cm3 molecule-1 s-1. Our calculations predict branching ratios between 99.0 and 93.9% for the formation of methoxy radical plus molecular oxygen and water, and between 1.0 and 6.1% for the formation of formaldehyde plus hydroperoxyl radical and water, in the 225-325 K temperature range. The lifetime of CH3OOOH in the troposphere is predicted to range from of 1.8 hours at 225 K, up to 3.9 hours at 275 K and decreasing to 0.2 hours at 310 K. CH3OOO and CH2OOOH radicals have been also investigated.
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Affiliation(s)
- Josep M Anglada
- Departament de Química Biològica, (IQAC - CSIC), Jordi Girona, 18-26, E-08034 Barcelona, Spain.
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10
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11
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Evidence for the Formation of Ozone (or Ozone-Like Oxidants) by the Reaction of Singlet Oxygen with Amino Acids. J CHEM-NY 2018. [DOI: 10.1155/2018/6145180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Antibodies or some amino acids, namely, cysteine, methionine, histidine, and tryptophan, were previously reported to catalyse the conversion of singlet oxygen (1O2) to ozone (O3). The originally proposed mechanism for such biological ozone formation was that antibodies or amino acids catalyse the oxidation of water molecules by singlet oxygen to yield dihydrogen trioxide (HOOOH) as a precursor of ozone and hydrogen peroxide (H2O2). However, because HOOOH readily decomposes to form water and singlet oxygen rather than ozone and hydrogen peroxide, an alternative hypothesis has been proposed; ozone is formed due to the reaction of singlet oxygen with amino acids to form polyoxidic amino acid derivatives as ozone precursors. Evidence in support of the latter hypothesis is presented in this article, in that in the presence of singlet oxygen, methionine sulfoxide (RS(O)CH3), an oxidation product of methionine (RSCH3), was found to promote reactions that can best be attributed to the trioxidic anionic derivative RS+(OOO−)CH3 or ozone.
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12
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Assaf E, Schoemaecker C, Vereecken L, Fittschen C. Experimental and theoretical investigation of the reaction of RO2radicals with OH radicals: Dependence of the HO2yield on the size of the alkyl group. INT J CHEM KINET 2018. [DOI: 10.1002/kin.21191] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Emmanuel Assaf
- Université Lille; CNRS; UMR 8522, PC2A - Physicochimie des Processus de Combustion et de l'Atmosphère; Lille France
| | - Coralie Schoemaecker
- Université Lille; CNRS; UMR 8522, PC2A - Physicochimie des Processus de Combustion et de l'Atmosphère; Lille France
| | - Luc Vereecken
- Institut für Energie und Klimaforschung; Forschungszentrum Jülich GmbH; Jülich Germany
| | - Christa Fittschen
- Université Lille; CNRS; UMR 8522, PC2A - Physicochimie des Processus de Combustion et de l'Atmosphère; Lille France
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13
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A theoretical characterization of reactions of HOOO radical with guanine: formation of 8-oxoguanine. Struct Chem 2018. [DOI: 10.1007/s11224-018-1095-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Yang Y, Pignatello JJ. Participation of the Halogens in Photochemical Reactions in Natural and Treated Waters. Molecules 2017; 22:E1684. [PMID: 29027977 PMCID: PMC6151492 DOI: 10.3390/molecules22101684] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 10/01/2017] [Accepted: 10/04/2017] [Indexed: 11/17/2022] Open
Abstract
Halide ions are ubiquitous in natural waters and wastewaters. Halogens play an important and complex role in environmental photochemical processes and in reactions taking place during photochemical water treatment. While inert to solar wavelengths, halides can be converted into radical and non-radical reactive halogen species (RHS) by sensitized photolysis and by reactions with secondary reactive oxygen species (ROS) produced through sunlight-initiated reactions in water and atmospheric aerosols, such as hydroxyl radical, ozone, and nitrate radical. In photochemical advanced oxidation processes for water treatment, RHS can be generated by UV photolysis and by reactions of halides with hydroxyl radicals, sulfate radicals, ozone, and other ROS. RHS are reactive toward organic compounds, and some reactions lead to incorporation of halogen into byproducts. Recent studies indicate that halides, or the RHS derived from them, affect the concentrations of photogenerated reactive oxygen species (ROS) and other reactive species; influence the photobleaching of dissolved natural organic matter (DOM); alter the rates and products of pollutant transformations; lead to covalent incorporation of halogen into small natural molecules, DOM, and pollutants; and give rise to certain halogen oxides of concern as water contaminants. The complex and colorful chemistry of halogen in waters will be summarized in detail and the implications of this chemistry for global biogeochemical cycling of halogen, contaminant fate in natural waters, and water purification technologies will be discussed.
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Affiliation(s)
- Yi Yang
- Department of Environmental Sciences, The Connecticut Agricultural Experiment Station, 123 Huntington St., P.O. Box 1106, New Haven, CT 06504-1106, USA.
| | - Joseph J Pignatello
- Department of Environmental Sciences, The Connecticut Agricultural Experiment Station, 123 Huntington St., P.O. Box 1106, New Haven, CT 06504-1106, USA.
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15
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Badenes MP, Tucceri ME, Cobos CJ. Role of the Recombination Channel in the Reaction between the HO and HO2 Radicals. J Phys Chem A 2017; 121:440-447. [DOI: 10.1021/acs.jpca.6b10427] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- María P. Badenes
- Instituto de Investigaciones
Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento
de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CONICET, Casilla de Correo 16, Sucursal 4, 1900 La Plata, Argentina
| | - María E. Tucceri
- Instituto de Investigaciones
Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento
de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CONICET, Casilla de Correo 16, Sucursal 4, 1900 La Plata, Argentina
| | - Carlos J. Cobos
- Instituto de Investigaciones
Fisicoquímicas Teóricas y Aplicadas (INIFTA), Departamento
de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CONICET, Casilla de Correo 16, Sucursal 4, 1900 La Plata, Argentina
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16
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Levanov AV, Isaikina OY, Lunin VV. Enthalpies of the formation and decomposition of hydrogen trioxide HOOOH in an aqueous solution. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2016. [DOI: 10.1134/s0036024416110145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Lindquist BA, Takeshita TY, Dunning TH. Insights into the Electronic Structure of Ozone and Sulfur Dioxide from Generalized Valence Bond Theory: Addition of Hydrogen Atoms. J Phys Chem A 2016; 120:2720-6. [DOI: 10.1021/acs.jpca.6b02014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Beth A. Lindquist
- Department
of Chemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Tyler Y. Takeshita
- Department
of Chemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
| | - Thom H. Dunning
- Department
of Chemistry, University of Illinois at Urbana−Champaign, 600 S. Mathews Avenue, Urbana, Illinois 61801, United States
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18
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Endogenous Generation of Singlet Oxygen and Ozone in Human and Animal Tissues: Mechanisms, Biological Significance, and Influence of Dietary Components. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:2398573. [PMID: 27042259 PMCID: PMC4799824 DOI: 10.1155/2016/2398573] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 02/08/2016] [Indexed: 12/18/2022]
Abstract
Recent studies have shown that exposing antibodies or amino acids to singlet oxygen results in the formation of ozone (or an ozone-like oxidant) and hydrogen peroxide and that human neutrophils produce both singlet oxygen and ozone during bacterial killing. There is also mounting evidence that endogenous singlet oxygen production may be a common occurrence in cells through various mechanisms. Thus, the ozone-producing combination of singlet oxygen and amino acids might be a common cellular occurrence. This paper reviews the potential pathways of formation of singlet oxygen and ozone in vivo and also proposes some new pathways for singlet oxygen formation. Physiological consequences of the endogenous formation of these oxidants in human tissues are discussed, as well as examples of how dietary factors may promote or inhibit their generation and activity.
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19
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Liu L, Meng L, Zhang X, Zeng Y. Comparison of the directionality of the halogen, hydrogen, and lithium bonds between HOOOH and XF (X = Cl, Br, H, Li). J Mol Model 2016; 22:52. [PMID: 26847451 DOI: 10.1007/s00894-016-2919-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 01/18/2016] [Indexed: 11/28/2022]
Abstract
Detailed electrostatic potential (ESP) analyses were performed to compare the directionality of halogen bonds with those of hydrogen bonds and lithium bonds. To do this, the interactions of HOOOH with the molecules XF (X = Cl, Br, H, Li) were investigated. For each molecule, the percentage of the van der Waals (vdW) molecular surface that intersected with the ESP surface was used to roughly quantify the directionality of the halogen/hydrogen/lithium bond associated with the molecule. The size of the region of intersection was found to increase in the following order: ClF < BrF < HF < LiF. The maximum ESP in the region of intersection, V S, max, was observed to become more positive according to the sequence ClF < BrF < HF < LiF. For ClF and BrF, the positive electrostatic potential was concentrated in a very small region of the vdW molecular surface. On the other hand, for HF and LiF, the positive electrostatic potential was more diffusely scattered across the vdW surface than for ClF and BrF. Also, the optimized geometries of the dipolymers HOOOH··· XF (X = Cl, Br, H, Li) indicated that halogen bonds are more directional than hydrogen bonds and lithium bonds, consistent with the results of ESP analyses.
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Affiliation(s)
- Lixun Liu
- College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Lingpeng Meng
- College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Xueying Zhang
- College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Yanli Zeng
- College of Chemistry and Material Sciences, Hebei Normal University, Shijiazhuang, 050024, China.
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20
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Kim JM, Hong SY, Kim SJ. Theoretical Study for the Structures and Binding Energies of HOOO-(H 2O) n(n=1~5) Cluster. JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE 2015. [DOI: 10.5012/jkcs.2015.59.5.387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Strle G, Cerkovnik J. A Simple and Efficient Preparation of High-Purity Hydrogen Trioxide (HOOOH). Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Strle G, Cerkovnik J. A Simple and Efficient Preparation of High‐Purity Hydrogen Trioxide (HOOOH). Angew Chem Int Ed Engl 2015; 54:9917-20. [DOI: 10.1002/anie.201504084] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Gregor Strle
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, P.O. Box 537, 1000 Ljubljana (Slovenia)
| | - Janez Cerkovnik
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna pot 113, P.O. Box 537, 1000 Ljubljana (Slovenia)
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23
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Onyango AN. Alternatives to the 'water oxidation pathway' of biological ozone formation. J Chem Biol 2015; 9:1-8. [PMID: 26855676 DOI: 10.1007/s12154-015-0140-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Accepted: 06/05/2015] [Indexed: 12/31/2022] Open
Abstract
Recent studies have shown that ozone (O3) is endogenously generated in living tissues, where it makes both positive and negative physiological contributions. A pathway for the formation of both O3 and hydrogen peroxide (H2O2) was previously proposed, beginning with the antibody or amino acid-catalyzed oxidation of water by singlet oxygen ((1)O2) to form hydrogen trioxide (H2O3) as a key intermediate. A key pillar of this hypothesis is that some of the H2O2 molecules incorporate water-derived oxygen atoms. However, H2O3 decomposes extremely readily in water to form (1)O2 and water, rather than O3 and H2O2. This article highlights key literature indicating that the oxidation of organic molecules such as the amino acids methionine, tryptophan, histidine, and cysteine by (1)O2 is involved in ozone formation. Based on this, an alternative hypothesis for ozone formation is developed involving a further reaction of singlet oxygen with various oxidized organic intermediates. H2O2 having water-derived oxygen atoms is subsequently formed during ozone decomposition in water by known reactions.
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Affiliation(s)
- Arnold N Onyango
- Department of Food Science and Technology, Jomo Kenyatta University of Agriculture and Technology, P. O. Box 62000, 00200 Nairobi, Kenya
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Hydrogen polyoxides H2O3 and H2O4 as components of peroxy radical condensate obtained from electro-dissociated water vapor. Chem Phys 2015. [DOI: 10.1016/j.chemphys.2014.11.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wickramasinghe LA, Sharp PR. Dihydrogen Trioxide (HOOOH) Photoelimination from a Platinum(IV) Hydroperoxo-Hydroxo Complex. J Am Chem Soc 2014; 136:13979-82. [DOI: 10.1021/ja507263f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Lasantha A. Wickramasinghe
- Department of Chemistry, University of Missouri, 125 Chemistry Building, Columbia, Missouri 65211-7600, United States
| | - Paul R. Sharp
- Department of Chemistry, University of Missouri, 125 Chemistry Building, Columbia, Missouri 65211-7600, United States
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Zen A, Trout BL, Guidoni L. Properties of reactive oxygen species by quantum Monte Carlo. J Chem Phys 2014; 141:014305. [DOI: 10.1063/1.4885144] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Andrea Zen
- Dipartimento di Fisica, La Sapienza - Università di Roma, Piazzale Aldo Moro 2, 00185 Rome, Italy
| | - Bernhardt L. Trout
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, Massachusetts 02139, USA
| | - Leonardo Guidoni
- Dipartimento di Scienze Fisiche e Chimiche, Università degli studi de L'Aquila, Via Vetoio, 67100 Coppito, L'Aquila, Italy
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Varandas AJC. Is HO3− multiple-minimum and floppy? Covalent to van der Waals isomerization and bond rupture of a peculiar anion. Phys Chem Chem Phys 2014; 16:16997-7007. [DOI: 10.1039/c4cp01757a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The HO3− anion is multiple-minimum and floppy: the two main isomers and isomerization barrier all lie quite below dissociation.
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Affiliation(s)
- A. J. C. Varandas
- Departamento de Química
- and Centro de Química
- Universidade de Coimbra
- 3004-535 Coimbra, Portugal
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