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Wei C, Zhang Y, Qu Y, Hua W, Jia Z, Lu J, Xie G, Xiao J, Hu H, Yang Y, Liu JQ, Bai J, Xue G. Dual Channel H 2O 2 Photosynthesis in Pure Water over S-Scheme Heterojunction Cs 3PMo 12/CC Boosted by Proton and Electron Reservoirs. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401485. [PMID: 38712455 DOI: 10.1002/smll.202401485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 04/24/2024] [Indexed: 05/08/2024]
Abstract
Dual channel photo-driven H2O2 production in pure water on small-scale on-site setups is a promising strategy to provide low-concentrated H2O2 whenever needed. This process suffers, however, strongly from the fast recombination of photo-generated charge carriers and the sluggish oxidation process. Here, insoluble Keggin-type cesium phosphomolybdate Cs3PMo12O40 (abbreviated to Cs3PMo12) is introduced to carbonized cellulose (CC) to construct S-scheme heterojunction Cs3PMo12/CC. Dual channel H2O2 photosynthesis from both H2O oxidation and O2 reduction in pure water has been thus achieved with the production rate of 20.1 mmol L-1 gcat. -1 h-1, apparent quantum yield (AQY) of 2.1% and solar-to-chemical conversion (SCC) efficiency of 0.050%. H2O2 accumulative concentration reaches 4.9 mmol L-1. This high photocatalytic activity is guaranteed by unique features of Cs3PMo12/CC, namely, S-scheme heterojunction, electron reservoir, and proton reservoir. The former two enhance the separation of photo-generated charge carriers, while the latter speeds up the torpid oxidation process. In situ experiments reveal that H2O2 is formed via successive single-electron transfer in both channels. In real practice, exposing the reaction system under natural sunlight outdoors successfully results in 0.24 mmol L-1 H2O2. This work provides a key practical strategy for designing photocatalysts in modulating redox half-reactions in photosynthesis.
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Affiliation(s)
- Chong Wei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
| | - Yu Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
| | - Yunteng Qu
- State Key Laboratory of Photoelectric Technology and Functional Materials, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & PhotonTechnology, Northwest University, Xi'an, 710069, China
- Shaanxi Key Laboratory for Carbon Neutral Technology, Northwest University, Xi'an, 710127, China
| | - Wenbo Hua
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
| | - Zixian Jia
- SINOPEC Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd, Dalian, 116045, China
| | - Jiangbo Lu
- School of Physics & Information Technology, Shaanxi Normal University, Xi'an, Shaanxi, 710062, China
| | - Gang Xie
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
- Shaanxi Key Laboratory for Carbon Neutral Technology, Northwest University, Xi'an, 710127, China
| | - Jianming Xiao
- Department College of Materials Science and Engineering, Xi'an University of Architecture and Technology, Xi'an, 710055, China
| | - Huaiming Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
| | - Ying Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
- Shaanxi Key Laboratory for Carbon Neutral Technology, Northwest University, Xi'an, 710127, China
| | - Ji-Quan Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
- Shaanxi Key Laboratory for Carbon Neutral Technology, Northwest University, Xi'an, 710127, China
| | - Jinbo Bai
- CentraleSupélec, ENS Paris-Saclay, CNRS, LMPS-Laboratoire de Mécanique Paris-Saclay, Université Paris-Saclay, 8-10 rue Joliot-Curie, Gif-sur-Yvette, 91190, France
| | - Ganglin Xue
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Ave., Xi'an, 710127, China
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Zulfajri M, Gedda G, Ulla H, Habibati, Gollavelli G, Huang GG. A review on the chemical and biological sensing applications of silver/carbon dots nanocomposites with their interaction mechanisms. Adv Colloid Interface Sci 2024; 325:103115. [PMID: 38422725 DOI: 10.1016/j.cis.2024.103115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 02/04/2024] [Accepted: 02/16/2024] [Indexed: 03/02/2024]
Abstract
The development of new nanocomposites has a significant impact on modern instrumentation and analytical methods for chemical analysis. Due to their unique properties, carbon dots (CDs) and silver nanoparticles (AgNPs), distinguished by their unique physical, electrochemical, and optical properties, have captivated significant attention. Thus, combining AgNPs and CDs may produce Ag/CDs nanocomposites with improved performances than the individual material. This comprehensive review offers an in-depth exploration of the synthesis, formation mechanism, properties, and the recent surge in chemical and biological sensing applications of Ag/CDs with their sensing mechanisms. Detailed insights into synthesis methods to produce Ag/CDs are unveiled, followed by information on their physicochemical and optical properties. The crux of this review lies in its spotlight on the diverse landscape of chemical and biological sensing applications of Ag/CDs, with a particular focus on fluorescence, electrochemical, colorimetric, surface-enhanced Raman spectroscopy, and surface plasmon resonance sensing techniques. The elucidation of sensing mechanisms of the nanocomposites with various target analytes adds depth to the discussion. Finally, this review culminates with a concise summary and a glimpse into future perspectives of Ag/CDs aiming to achieve highly efficient and enduring Ag/CDs for various applications.
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Affiliation(s)
- Muhammad Zulfajri
- Department of Chemistry Education, Universitas Serambi Mekkah, Banda Aceh, Aceh 23245, Indonesia
| | - Gangaraju Gedda
- Central Research Laboratory, K S Hegde Medical Academy, NITTE (Deemed to be University), Deralakatte, Mangaluru 575018, Karnataka, India.; Department of Animal Science & Technology and BET Research Institute, Chung-Ang University, Anseong, Gyeonggi-do 17546, Republic of Korea.
| | - Hidayath Ulla
- Department of Physics, School of Engineering, Presidency University, Bangalore 560064, India; Innovation and Translational Research Hub (iTRH), Presidency University, Bangalore 560064, Karnataka, India
| | - Habibati
- Department of Chemistry Education, Universitas Syiah Kuala, Banda Aceh, Aceh 23111, Indonesia
| | - Ganesh Gollavelli
- Department of Humanities and Basic Science, Aditya Engineering College, Jawaharlal Nehru Technological University Kakinada, Kakinada 533437, India
| | - Genin Gary Huang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan.
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3D Characterization of the Molecular Neighborhood of •OH Radical in High Temperature Water by MD Simulation and Voronoi Polyhedra. Int J Mol Sci 2023; 24:ijms24043294. [PMID: 36834704 PMCID: PMC9963584 DOI: 10.3390/ijms24043294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 01/27/2023] [Accepted: 02/03/2023] [Indexed: 02/10/2023] Open
Abstract
Understanding the properties of the •OH radical in aqueous environments is essential for biochemistry, atmospheric chemistry, and the development of green chemistry technologies. In particular, the technological applications involve knowledge of microsolvation of the •OH radical in high temperature water. In this study, the classical molecular dynamics (MD) simulation and the technique based on the construction of Voronoi polyhedra were used to provide 3D characteristics of the molecular vicinity of the aqueous hydroxyl radical (•OHaq). The statistical distribution functions of metric and topological features of solvation shells represented by the constructed Voronoi polyhedra are reported for several thermodynamic states of water, including the pressurized high-temperature liquid and supercritical fluid. Calculations showed a decisive influence of the water density on the geometrical properties of the •OH solvation shell in the sub- and supercritical region: with the decreasing density, the span and asymmetry of the solvation shell increase. We also showed that the 1D analysis based on the oxygen-oxygen radial distribution functions (RDFs) overestimates the solvation number of •OH and insufficiently reflects the influence of transformations in the hydrogen-bonded network of water on the structure of the solvation shell.
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Probing the Potential Energy Profile of the I + (H 2O) 3 → HI + (H 2O) 2OH Forward and Reverse Reactions: High Level CCSD(T) Studies with Spin-Orbit Coupling Included. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020904. [PMID: 36677960 PMCID: PMC9866029 DOI: 10.3390/molecules28020904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/05/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023]
Abstract
Three different pathways for the atomic iodine plus water trimer reaction I + (H2O)3 → HI + (H2O)2OH were preliminarily examined by the DFT-MPW1K method. Related to previous predictions for the F/Cl/Br + (H2O)3 reactions, three pathways for the I + (H2O)3 reaction are linked in terms of geometry and energetics. To legitimize the results, the "gold standard" CCSD(T) method was employed to investigate the lowest-lying pathway with the correlation-consistent polarized valence basis set up to cc-pVQZ(-PP). According to the CCSD(T)/cc-pVQZ(-PP)//CCSD(T)/cc-pVTZ(-PP) results, the I + (H2O)3 → HI + (H2O)2OH reaction is predicted to be endothermic by 47.0 kcal mol-1. The submerged transition state is predicted to lie 43.7 kcal mol-1 above the separated reactants. The I···(H2O)3 entrance complex lies below the separated reactants by 4.1 kcal mol-1, and spin-orbit coupling has a significant impact on this dissociation energy. The HI···(H2O)2OH exit complex is bound by 4.3 kcal mol-1 in relation to the separated products. Compared with simpler I + (H2O)2 and I + H2O reactions, the I + (H2O)3 reaction is energetically between them in general. It is speculated that the reaction between the iodine atom and the larger water clusters may be energetically analogous to the I + (H2O)3 reaction. The iodine reaction I + (H2O)3 is connected with the analogous valence isoelectronic bromine/chlorine reactions Br/Cl + (H2O)3 but much different from the F + (H2O)3 reaction. Significant difference with other halogen systems, especially for barrier heights, are seen for the iodine systems.
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Li G, Yao Y, Lin Y, Meng Y, Xie Y, Schaefer HF. The reaction between the bromine atom and the water trimer: high level theoretical studies. Phys Chem Chem Phys 2022; 24:26164-26169. [DOI: 10.1039/d2cp03525a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The Br + (H2O)3 → HBr + (H2O)2OH reaction has been investigated using the CCSD(T) method with the basis sets as large as cc-pVQZ(-PP). The Br + (H2O)3 reaction is also compared with related Br + H2O/(H2O)2 and F/Cl + (H2O)3 reactions.
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Affiliation(s)
- Guoliang Li
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Center for Computational Quantum Chemistry, School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Ying Yao
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Center for Computational Quantum Chemistry, School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Yan Lin
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Center for Computational Quantum Chemistry, School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Yan Meng
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Center for Computational Quantum Chemistry, School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Yaoming Xie
- Department of Chemistry and Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia, 30602, USA
| | - Henry F. Schaefer
- Department of Chemistry and Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia, 30602, USA
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Li G, Yao Y, Lü S, Xie Y, Douberly GE, Schaefer HF. Potential energy profile for the Cl + (H 2O) 3 → HCl + (H 2O) 2OH reaction. A CCSD(T) study. Phys Chem Chem Phys 2021; 23:26837-26842. [PMID: 34817485 DOI: 10.1039/d1cp04309a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Four different reaction pathways are initially located for the reaction of Cl atom plus water trimer Cl + (H2O)3 → HCl + (H2O)2OH using a standard DFT method. As found for the analogous fluorine reaction, the geometrical and energetic results for the four chlorine pathways are closely related. However, the energetics for the Cl reaction are very different from those for fluorine. In the present paper, we investigate the lowest-energy chlorine pathway using the "gold standard" CCSD(T) method in conjunction with correlation-consistent basis sets up to cc-pVQZ. Structurally, the stationary points for the water trimer reaction Cl + (H2O)3 may be compared to those for the water monomer reaction Cl + H2O and water dimer reaction Cl + (H2O)2. Based on the CCSD(T) energies, the title reaction is endothermic by 19.3 kcal mol-1, with a classical barrier height of 16.7 kcal mol-1 between the reactants and the exit complex. There is no barrier for the reverse reaction. The Cl⋯(H2O)3 entrance complex lies 5.3 kcal mol-1 below the separated reactants. The HCl⋯(H2O)2OH exit complex is bound by 8.6 kcal mol-1 relative to the separated products. The Cl + (H2O)3 reaction is somewhat similar to the analogous Cl + (H2O)2 reaction, but qualitatively different from the Cl + H2O reaction. It is reasonable to expect that the reactions between the chlorine atom and larger water clusters may be similar to the Cl + (H2O)3 reaction. The potential energy profile for the Cl + (H2O)3 reaction is radically different from that for the valence isoelectronic F + (H2O)3 system, which may be related to the different bond energies between HCl and HF.
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Affiliation(s)
- Guoliang Li
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Center for Computational Quantum Chemistry, School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Ying Yao
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Center for Computational Quantum Chemistry, School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Shengyao Lü
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Center for Computational Quantum Chemistry, School of Chemistry, South China Normal University, Guangzhou, 510006, P. R. China
| | - Yaoming Xie
- Department of Chemistry and Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia, 30602, USA.
| | - Gary E Douberly
- Department of Chemistry and Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia, 30602, USA.
| | - Henry F Schaefer
- Department of Chemistry and Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia, 30602, USA.
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7
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Buemi G, Sergio Cataliotti R. The Polarizable continuum potential model in the liquid state Calculations. Density functional computational analysis of the anharmonic vibrational spectrum of liquid water. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116941] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Apostolidou C. Vibrational Spectra of the OH Radical in Water: Ab Initio Molecular Dynamics Simulations and Quantum Chemical Calculations Using Hybrid Functionals. ADVANCED THEORY AND SIMULATIONS 2020. [DOI: 10.1002/adts.202000174] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Christina Apostolidou
- Mulliken Center for Theoretical Chemistry Institute of Physical and Theoretical Chemistry Rheinische Friedrich‐Wilhelms‐Universität Bonn Beringstraße 4 Bonn 53115 Germany
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9
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Vacuum ultraviolet photolysis of CH4:O2 ice mixtures and the formation of CO and CO2. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Gao A, Li G, Peng B, Weidman JD, Xie Y, Schaefer HF. The water trimer reaction OH + (H 2O) 3→ (H 2O) 2OH + H 2O. Phys Chem Chem Phys 2020; 22:9767-9774. [PMID: 32338658 DOI: 10.1039/d0cp01418d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
All important stationary points on the potential energy surface (PES) for the reaction OH + (H2O)3→ (H2O)2OH + H2O have been fully optimized using the "gold standard" CCSD(T) method with the large Dunning correlation-consistent cc-pVQZ basis sets. Three types of pathways were found. For the pathway without hydrogen abstraction, the barrier height of the transition state (TS1) is predicted to lie 5.9 kcal mol-1 below the reactants. The two major complexes (H2O)3OH (CP1 and CP2a) are found to lie 6.3 and 11.0 kcal mol-1, respectively, below the reactants [OH + (H2O)3]. For one of the H-abstraction pathways the lowest classical barrier height is predicted to be much higher, 6.1 kcal mol-1 (TS2a) above the reactants. For the other H-abstraction pathway the barrier height is even higher, 15.0 (TS3) kcal mol-1. Vibrational frequencies and the zero-point vibrational energies connected to the PES are also reported. The energy barriers for the H-abstraction pathways are compared with those for the OH + (H2O)2 and OH + H2O reactions, and the effects of the third water on the energetics are usually minor (0.2 kcal mol-1).
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Affiliation(s)
- Aifang Gao
- School of Water Resources and Environment, Hebei GEO University, Shijiazhuang, 050031, China
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Niu Z, Tang M, Ge N. Structure, stability, infrared spectra, and bonding of OH m(H 2O) 7 ( m = 0, ±1) clusters: ab initio study combining the particle swarm optimization algorithm. Phys Chem Chem Phys 2020; 22:26487-26501. [PMID: 33185201 DOI: 10.1039/d0cp04332j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The various structural candidates of anionic, neutral, and cationic water clusters OHm(H2O)7 (m = 0, ±1) have been globally predicted by combining the particle swarm optimization method and quantum chemical calculations. Geometry optimization and vibrational analysis for the optimal structures were performed with the MP2/aug-cc-pVDZ method, and the energy profile was further refined at the CCSD(T)/CBS level. Special attention was paid to the relationships between configurations and energies, particularly the first solvation shell coordination number of OH- and OH. For OH-(H2O)7, OH(H2O)7, and OH+(H2O)7 clusters, the most stable species at room temperature are predicted to be the tetra-solvated multi-ring structure A6, the tri-solvated hemibond cage structure N1, and the single five-membered ring structure C2, respectively. The temperature effects on the stability of these three systems were also explored via Gibbs free energies. Furthermore, for the OH-(H2O)7 clusters, the assignments of vibrational transitions in the OH stretching region are in good agreement with the studies of small hydroxide ion-water clusters, and the IR spectra of two isomers (tetra-solvated multi-ring A6 and penta-solvated cage A3) may match future experimental observation well. By topological analysis and reduced density gradient analysis, the structural characteristics and bonding strengths of the studied clusters were investigated. This work indicates the excellent performance of the PSO search algorithm and CALYPSO on water clusters, and may further provide extensive insights into the chemical behavior such as the transport mechanism of OH- ions and OH radicals in the aqueous phase.
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Affiliation(s)
- Zhenwei Niu
- School of National Defense Science & Technology, Southwest University of Science and Technology, Mianyang 621010, P. R. China
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Sugiura Y, Takayanagi T. Franck–Condon simulations of transition-state spectra for the OH + H2O and OD + D2O reactions. Phys Chem Chem Phys 2020; 22:20685-20692. [DOI: 10.1039/d0cp03681a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Quantum wave packet calculations in reduced dimensions were performed to analyze the experimentally measured transition-state spectra of the OH + H2O and OD + D2O hydrogen exchange reactions.
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Affiliation(s)
- Yutaro Sugiura
- Department of Chemistry
- Saitama University
- Saitama City
- Japan
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13
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Apostolidou C. OH radical in water from ab initio molecular dynamics simulation employing hybrid functionals. J Chem Phys 2019. [DOI: 10.1063/1.5107479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Christina Apostolidou
- Mulliken Center for Theoretical Chemistry, Institute of Physical and Theoretical Chemistry, Rheinische Friedrich-Wilhelms-Universität Bonn, Beringstraße 4, 53115 Bonn, Germany
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14
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Zheng R, Zhu Y, Song H. Mode-specific quantum dynamics and kinetics of the hydrogen abstraction reaction OH + H2O → H2O + OH. Phys Chem Chem Phys 2019; 21:24054-24060. [DOI: 10.1039/c9cp04721b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synergistic effect between the reactant stretching and bending modes on promoting the reaction.
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Affiliation(s)
- Rui Zheng
- School of Physics and Electronics
- North China University of Water Resources and Electric Power
- Zhengzhou 450011
- China
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
| | - Yongfa Zhu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
- Wuhan 430071
- China
| | - Hongwei Song
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
- Wuhan 430071
- China
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15
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High Temperature Aqueous Solvent Effect on Stretching Vibrations of the Hydroxyl Radical – MD Simulation Study of Spectral Shifts and Hydrogen Bond Statistics. J Supercrit Fluids 2019. [DOI: 10.1016/j.supflu.2018.07.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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16
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Shin HK. Relaxation of the H 2O Overtone Bending Vibration in the Water Dimer···Hydroxyl Radical Complex. J Phys Chem A 2018; 122:5510-5517. [PMID: 29846069 DOI: 10.1021/acs.jpca.8b03674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The relaxation mechanism of the overtone bending vibration in the collision of the water dimer with the vibrationally excited hydroxyl radical is studied by use of trajectory procedures. The transfer of the OH(v = 1) energy to the dimer stretches is followed by a near-resonant first overtone transition to the donor monomer. Nearly a quarter of the trajectories undergo a complex-mode collision, forming the (H2O)2···OH complex bound by a hydrogen bond with the lifetime ranging from a subpicosecond scale to >100 ps. The overtone vibration relaxes to the ground state, transferring approximately half of its energy to the dimer hydrogen-bonding (H2O···H2O) and the remaining half to the complex hydrogen-bonding (H2O)2···OH, via near-resonant pathways, each consisting of a series of intermolecular low-frequency vibrations.
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Affiliation(s)
- H K Shin
- Department of Chemistry , University of Nevada , Reno , Nevada 89557 , United States
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17
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Zhu Y, Ping L, Bai M, Liu Y, Song H, Li J, Yang M. Tracking the energy flow in the hydrogen exchange reaction OH + H 2O → H 2O + OH. Phys Chem Chem Phys 2018; 20:12543-12556. [PMID: 29693667 DOI: 10.1039/c8cp00938d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The prototypical hydrogen exchange reaction OH + H2O → H2O + OH has attracted considerable interest due to its importance in a wide range of chemically active environments. In this work, an accurate global potential energy surface (PES) for the ground electronic state was developed based on ∼44 000 ab initio points at the level of UCCSD(T)-F12a/aug-cc-pVTZ. The PES was fitted using the fundamental invariant-neural network method with a root mean squared error of 4.37 meV. The mode specific dynamics was then studied by the quasi-classical trajectory method on the PES. Furthermore, the normal mode analysis approach was employed to calculate the final vibrational state distribution of the product H2O, in which a new scheme to acquire the Cartesian coordinates and momenta of each atom in the product molecule from the trajectories was proposed. It was found that, on one hand, excitation of either the symmetric stretching mode or the asymmetric stretching mode of the reactant H2O promotes the reaction more than the translational energy, which can be rationalized by the sudden vector projection model. On the other hand, the relatively higher efficacy of exciting the symmetric stretching mode than that of the asymmetric stretching mode is caused by the prevalence of the indirect mechanism at low collision energies and the stripping mechanism at high collision energies. In addition, the initial collision energy turns ineffectively into the vibrational energy of the products H2O and OH while a fraction of the energy transforms into the rotational energy of the product H2O. Fundamental excitation of the stretching modes of H2O results in the product H2O having the highest population in the fundamental state of the asymmetric stretching mode, followed by the ground state and the fundamental state of the symmetric stretching mode.
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Affiliation(s)
- Yongfa Zhu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China.
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18
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Gao A, Li G, Peng B, Xie Y, Schaefer HF. The water dimer reaction OH + (H 2O) 2 → (H 2O)-OH + H 2O. Phys Chem Chem Phys 2017; 19:18279-18287. [PMID: 28678244 DOI: 10.1039/c7cp03233a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stationary points, including the entrance complex, transition states, and the exit complex, for the reaction OH + (H2O)2 → (H2O)OH + H2O have been carefully examined using the "gold standard" CCSD(T) method with the correlation-consistent basis sets up to cc-pVQZ. The complex (H2O)2OH is found to lie 10.8 kcal mol-1 below the separated reactants. This complex should be observable in the gas phase via vibrational or microwave spectroscopy. Seven unique transition states were found. One pathway for the title reaction has no barrier, in which the OH radical captures a whole water molecule from the water dimer. For the hydrogen abstraction pathways the lowest classical barrier height is predicted to be 5.9 kcal mol-1 (TS1) relative to separated reactants, and the other pathways are of higher barriers, i.e., 17.8 (TS2) and 18.4 (TS3) kcal mol-1. The harmonic vibrational frequencies and the zero-point vibrational energies of the stationary points for the reaction are also reported.
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Affiliation(s)
- Aifang Gao
- School of Water Resources and Environment, Hebei GEO University, Shijiazhuang, 050031, China.
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19
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Liu T, Dong JX, Liu SG, Li N, Lin SM, Fan YZ, Lei JL, Luo HQ, Li NB. Carbon quantum dots prepared with polyethyleneimine as both reducing agent and stabilizer for synthesis of Ag/CQDs composite for Hg 2+ ions detection. JOURNAL OF HAZARDOUS MATERIALS 2017; 322:430-436. [PMID: 27773437 DOI: 10.1016/j.jhazmat.2016.10.034] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 10/04/2016] [Accepted: 10/15/2016] [Indexed: 06/06/2023]
Abstract
A stable silver nanoparticles/carbon quantum dots (Ag/CQDs) composite was prepared by using CQDs as reducing and stabilizing agent. The CQDs synthesized with polyethyleneimine (PEI) showed an extraordinary reducibility. When Hg2+ was presented in the Ag/CQDs composite solution, a color change from yellow to colorless was observed, accompanied by a shift of surface plasmon resonance (SPR) band and decrease in absorbance of the Ag/CQDs composite. On the basis of the further studies on TEM, XPS and XRD analysis, the possible mechanism is attributed to the formation of a silver-mercury amalgam. Hence, a two dimensional sensing platform for Hg2+ detection was constructed upon the Ag/CQDs composite. Based on the change of absorbance, a good linear relationship was obtained from 0.5 to 50μM for Hg2+. And the limit of detection for Hg2+ was as low as 85nM, representing high sensitivity to Hg2+. More importantly, the proposed method also exhibits a good selectivity toward Hg2+ over other metal ions. Besides, this strategy demonstrates practicability for the detection of Hg2+ in real water samples with satisfactory results.
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Affiliation(s)
- Ting Liu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, No.2 Tiansheng Road, BeiBei District, Chongqing 400715, PR China
| | - Jiang Xue Dong
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, No.2 Tiansheng Road, BeiBei District, Chongqing 400715, PR China
| | - Shi Gang Liu
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, No.2 Tiansheng Road, BeiBei District, Chongqing 400715, PR China
| | - Na Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, No.2 Tiansheng Road, BeiBei District, Chongqing 400715, PR China
| | - Shu Min Lin
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, No.2 Tiansheng Road, BeiBei District, Chongqing 400715, PR China
| | - Yu Zhu Fan
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, No.2 Tiansheng Road, BeiBei District, Chongqing 400715, PR China
| | - Jing Lie Lei
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, PR China
| | - Hong Qun Luo
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, No.2 Tiansheng Road, BeiBei District, Chongqing 400715, PR China.
| | - Nian Bing Li
- Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, No.2 Tiansheng Road, BeiBei District, Chongqing 400715, PR China.
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20
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Bai M, Lu D, Li J. Quasi-classical trajectory studies on the full-dimensional accurate potential energy surface for the OH + H2O = H2O + OH reaction. Phys Chem Chem Phys 2017; 19:17718-17725. [DOI: 10.1039/c7cp02656k] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first accurate PES for the OH + H2O reaction is developed by using the permutation invariant polynomial-neural network method to fit ∼48 000 CCSD(T)-F12a/AVTZ calculated points.
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Affiliation(s)
- Mengna Bai
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 401331
- China
| | - Dandan Lu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 401331
- China
| | - Jun Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 401331
- China
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21
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Hernandez FJ, Brice JT, Leavitt CM, Liang T, Raston PL, Pino GA, Douberly GE. Mid-infrared signatures of hydroxyl containing water clusters: Infrared laser Stark spectroscopy of OH–H2O and OH(D2O)n (n = 1-3). J Chem Phys 2015; 143:164304. [DOI: 10.1063/1.4933432] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Federico J. Hernandez
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
- INFIQC, Dpto. de Fisicoquímica, Facultad de Ciencias Químicas, Centro Láser de Ciencias Moleculares, Universidad Nacional de Córdoba, Ciudad Universitaria, Pabellón, X5000HUA Córdoba, Argentina
| | - Joseph T. Brice
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | | | - Tao Liang
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | - Paul L. Raston
- Department of Chemistry and Biochemistry, James Madison University, Harrisonburg, Virginia 22807, USA
| | - Gustavo A. Pino
- INFIQC, Dpto. de Fisicoquímica, Facultad de Ciencias Químicas, Centro Láser de Ciencias Moleculares, Universidad Nacional de Córdoba, Ciudad Universitaria, Pabellón, X5000HUA Córdoba, Argentina
| | - Gary E. Douberly
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA
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22
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Viegas LP, Varandas AJC. Role of (H2O)n (n = 2–3) Clusters on the HO2 + O3 Reaction: A Theoretical Study. J Phys Chem B 2015; 120:1560-8. [DOI: 10.1021/acs.jpcb.5b07691] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Luís P. Viegas
- Centro
de Química
and Departamento de Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
| | - António J. C. Varandas
- Centro
de Química
and Departamento de Química, Universidade de Coimbra, 3004-535 Coimbra, Portugal
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23
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Ling Y, Qu F, Zhou Q, Li T, Gao ZF, Lei JL, Li NB, Luo HQ. Diverse States and Properties of Polymer Nanoparticles and Gel Formed by Polyethyleneimine and Aldehydes and Analytical Applications. Anal Chem 2015; 87:8679-86. [DOI: 10.1021/acs.analchem.5b01138] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Yu Ling
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry
of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Fei Qu
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry
of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Qian Zhou
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry
of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Ting Li
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry
of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Zhong Feng Gao
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry
of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Jing Lei Lei
- College
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, People’s Republic of China
| | - Nian Bing Li
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry
of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
| | - Hong Qun Luo
- Key
Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry
of Education, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, People’s Republic of China
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24
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Li G, Wang H, Li QS, Xie Y, Schaefer HF. The Reaction between Bromine and the Water Dimer and the Highly Exothermic Reverse Reaction. J Comput Chem 2015; 37:177-82. [DOI: 10.1002/jcc.23951] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2015] [Revised: 04/28/2015] [Accepted: 04/30/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Guoliang Li
- MOE Key Laboratory of Theoretical Chemistry of the Environment; Center for Computational Quantum Chemistry, South China Normal University; Guangzhou 510006 China
- Guangzhou Key Laboratory of Materials for Energy Conversion and Storage; School of Chemistry and Environment; South China Normal University; Guangzhou 510006 China
- Center for Computational Quantum Chemistry; University of Georgia; Athens Georgia 30602
| | - Hui Wang
- MOE Key Laboratory of Theoretical Chemistry of the Environment; Center for Computational Quantum Chemistry, South China Normal University; Guangzhou 510006 China
| | - Qian-Shu Li
- MOE Key Laboratory of Theoretical Chemistry of the Environment; Center for Computational Quantum Chemistry, South China Normal University; Guangzhou 510006 China
| | - Yaoming Xie
- Center for Computational Quantum Chemistry; University of Georgia; Athens Georgia 30602
| | - Henry F. Schaefer
- Center for Computational Quantum Chemistry; University of Georgia; Athens Georgia 30602
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25
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Li G, Wang H, Li QS, Xie Y, Schaefer HF. The exothermic HCl + OH·(H2O) reaction: removal of the HCl + OH barrier by a single water molecule. J Chem Phys 2014; 140:124316. [PMID: 24697450 DOI: 10.1063/1.4869518] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The entrance complex, transition state, and exit complex for the title reaction have been investigated using the CCSD(T) method with correlation consistent basis sets up to cc-pVQZ. The stationary point geometries for the reaction are related to but different from those for the water monomer reaction HCl + OH → Cl + H2O. Our most important conclusion is that the hydrogen-bonded water molecule removes the classical barrier entirely. For the endothermic reverse reaction Cl + (H2O)2, the second water molecule lowers the relative energies of the entrance complex, transition state, and exit complex by about 4 kcal/mol. The title reaction is exothermic by 17.7 kcal/mol. The entrance complex HCl⋯OH·(H2O) is bound by 6.9 kcal/mol relative to the separated reactants. The classical barrier height for the reverse reaction is predicted to be 16.5 kcal/mol. The exit complex Cl⋯(H2O)2 is found to lie 6.8 kcal/mol below the separated products. The potential energy surface for the Cl + (H2O)2 reaction is radically different from that for the valence isoelectronic F + (H2O)2 system.
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Affiliation(s)
- Guoliang Li
- MOE Key Laboratory of Theoretical Chemistry of the Environment, Center for Computational Quantum Chemistry, South China Normal University, Guangzhou 510006, China
| | - Hui Wang
- MOE Key Laboratory of Theoretical Chemistry of the Environment, Center for Computational Quantum Chemistry, South China Normal University, Guangzhou 510006, China
| | - Qian-Shu Li
- MOE Key Laboratory of Theoretical Chemistry of the Environment, Center for Computational Quantum Chemistry, South China Normal University, Guangzhou 510006, China
| | - Yaoming Xie
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, USA
| | - Henry F Schaefer
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, USA
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26
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Codorniu-Hernández E, Boese AD, Kusalik PG. The hemibond as an alternative condensed phase structure for the hydroxyl radical. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0520] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Despite the critical importance of the hydroxyl radical in major scientific fields, there are still open questions on the behavior of this species in the aqueous phase. In particular, there has been much debate on the existence of a hemibonded interaction between the hydroxyl radical and water molecules. While some reports indicate that the hemibonded radical might explain some experimental data, others have claimed that this interaction is simply a density functional theory (DFT) artifact. Here, we provide results from high level (basis set limit of coupled-cluster levels up to single, double, triple excitations (CCSD(T)) and beyond) ab initio calculations of different OH•(H2O)n clusters in the gas phase to accurately explore the existence of the hemibonded interaction and its energy difference with respect to other well-defined hydrogen bond interactions. Additional comparisons with second order perturbation theory (MP2) and DFT are also presented. Constrained molecular dynamics was applied to determine the free energy for the formation/disruption and ice systems. Overall, our findings confirm that the hemibond can be an alternative structure for the hydroxyl radical in the condensed phase when the formation of hydrogen bonds is impeded. These results will aid the understanding of theoretical and experimental data and help future experimental designs for the detection of this important species.
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Affiliation(s)
| | - A. Daniel Boese
- Department of Chemistry, Institut für Chemie, Universität Potsdam, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam, Germany
| | - Peter G. Kusalik
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB T2N 1N4, Canada
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27
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Mizuse K, Fujii A. Characterization of a solvent-separated ion-radical pair in cationized water networks: infrared photodissociation and Ar-attachment experiments for water cluster radical cations (H2O)n+(n = 3-8). J Phys Chem A 2013; 117:929-38. [PMID: 23330841 DOI: 10.1021/jp311909h] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We present infrared spectra of nominal water cluster radical cations (H(2)O)(n)(+) (n = 3-8), or to be precise, ion-radical complexes H(+)(H(2)O)(n-1)(OH), with and without an Ar tag. These clusters are closely related to the ionizing radiation-induced processes in water and are a good model to characterize solvation structures of the ion-radical pair. The spectra of Ar-tagged species show narrower bandwidths relative to those of the bare clusters due to the reduced internal energy via an Ar-attachment. The observed spectra are analyzed by comparing with those of the similar system, H(+)(H(2)O)(n), and calculated ones. We find that the observed spectra are attributable to ion-radical-separated motifs in n ≥ 5, as reported in the previous study (Mizuse et al. Chem. Sci.2011, 2, 868-876). Beyond the structural trends found in the previous study, we characterize isomeric structures and determine the number of water molecules between the charged site and the OH radical in each cluster size. In all of the characterized cluster structures (n = 5-8), the most favorable position of OH radical is the next neighbor of the charged site (H(3)O(+) or H(5)O(2)(+)). The positions and cluster structures are governed by the balance among the hydrogen-bonding abilities of the charged site, H(2)O, and OH radical. These findings on the ionized water networks lead to understanding of the detailed processes of ionizing radiation-initiated reactions in liquid water and aqueous solutions.
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Affiliation(s)
- Kenta Mizuse
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan
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28
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Do NH, Cooper PD. Formation and Reaction of Oxidants in Water Ice Produced from the Deposition of RF-Discharged Rare Gas and Water Mixtures. J Phys Chem A 2012; 117:153-9. [PMID: 23237388 DOI: 10.1021/jp3090556] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nhut H. Do
- Department of Chemistry and Biochemistry, George Mason University, 4400 University Drive, MSN
3E2 Fairfax, Virginia 22030, United States
| | - Paul D. Cooper
- Department of Chemistry and Biochemistry, George Mason University, 4400 University Drive, MSN
3E2 Fairfax, Virginia 22030, United States
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29
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Buszek RJ, Barker JR, Francisco JS. Water Effect on the OH + HCl Reaction. J Phys Chem A 2012; 116:4712-9. [DOI: 10.1021/jp3025107] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Robert J. Buszek
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084,
United States
| | - John R. Barker
- Department
of Atmospheric, Oceanic
and Space Sciences, University of Michigan, Ann Arbor, Michigan 48109-2143, United States
| | - Joseph S. Francisco
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084,
United States
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30
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Buszek RJ, Torrent-Sucarrat M, Anglada JM, Francisco JS. Effects of a single water molecule on the OH + H2O2 reaction. J Phys Chem A 2012; 116:5821-9. [PMID: 22455374 DOI: 10.1021/jp2077825] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The effect of a single water molecule on the reaction between H(2)O(2) and HO has been investigated by employing MP2 and CCSD(T) theoretical approaches in connection with the aug-cc-PVDZ, aug-cc-PVTZ, and aug-cc-PVQZ basis sets and extrapolation to an ∞ basis set. The reaction without water has two elementary reaction paths that differ from each other in the orientation of the hydrogen atom of the hydroxyl radical moiety. Our computed rate constant, at 298 K, is 1.56 × 10(-12) cm(3) molecule(-1) s(-1), in excellent agreement with the suggested value by the NASA/JPL evaluation. The influence of water vapor has been investigated by considering either that H(2)O(2) first forms a complex with water that reacts with hydroxyl radical or that H(2)O(2) reacts with a previously formed H(2)O·OH complex. With the addition of water, the reaction mechanism becomes much more complex, yielding four different reaction paths. Two pathways do not undergo the oxidation reaction but an exchange reaction where there is an interchange between H(2)O(2)·H(2)O and H(2)O·OH complexes. The other two pathways oxidize H(2)O(2), with a computed total rate constant of 4.09 × 10(-12) cm(3) molecule(-1) s(-1) at 298 K, 2.6 times the value of the rate constant of the unassisted reaction. However, the true effect of water vapor requires taking into account the concentration of the prereactive bimolecular complex, namely, H(2)O(2)·H(2)O. With this consideration, water can actually slow down the oxidation of H(2)O(2) by OH between 1840 and 20.5 times in the 240-425 K temperature range. This is an example that demonstrates how water could be a catalyst in an atmospheric reaction in the laboratory but is slow under atmospheric conditions.
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Affiliation(s)
- Robert J Buszek
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084, United States
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31
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Yamaguchi M. Hemibonding of Hydroxyl Radical and Halide Anion in Aqueous Solution. J Phys Chem A 2011; 115:14620-8. [DOI: 10.1021/jp2063386] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Makoto Yamaguchi
- Japan Atomic Energy Agency, 4-33 Muramatsu, Tokai-mura, Naka-gun, Ibaraki 319-1194, Japan
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32
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Codorniu-Hernández E, Kusalik PG. Insights into the Solvation and Mobility of the Hydroxyl Radical in Aqueous Solution. J Chem Theory Comput 2011; 7:3725-32. [DOI: 10.1021/ct200418e] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Edelsys Codorniu-Hernández
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, T2N1N4, Alberta, Canada
| | - Peter G. Kusalik
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, T2N1N4, Alberta, Canada
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33
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Akai N, Kawai A, Shibuya K. Water assisted photo-oxidation from hydroquinone to p-benzoquinone in a solid Ne matrix. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2011.08.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Mizuse K, Kuo JL, Fujii A. Structural trends of ionized water networks: Infrared spectroscopy of watercluster radical cations (H2O)n+ (n = 3–11). Chem Sci 2011. [DOI: 10.1039/c0sc00604a] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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35
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Matrix-isolation infrared spectra of HOOBr and HOBrO produced upon VUV light irradiation of HBr/O2/Ne system. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.09.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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36
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The reaction between HO and (H2O) n (n = 1, 3) clusters: reaction mechanisms and tunneling effects. Theor Chem Acc 2010. [DOI: 10.1007/s00214-010-0824-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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37
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Soloveichik P, O’Donnell BA, Lester MI, Francisco JS, McCoy AB. Infrared Spectrum and Stability of the H2O−HO Complex: Experiment and Theory. J Phys Chem A 2009; 114:1529-38. [DOI: 10.1021/jp907885d] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pesia Soloveichik
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Bridget A. O’Donnell
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Marsha I. Lester
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Joseph S. Francisco
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907-2084
| | - Anne B. McCoy
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210
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