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Wang L, Wu Z, Lu B, Eckhardt AK, Schreiner PR, Trabelsi T, Francisco JS, Yao Q, Xie C, Guo H, Zeng X. Spectroscopic identification of the •SSNO isomers. J Chem Phys 2020; 153:094303. [DOI: 10.1063/5.0020669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Lina Wang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Zhuang Wu
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Bo Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - André K. Eckhardt
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, Giessen 35392, Germany
| | - Peter R. Schreiner
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, Giessen 35392, Germany
| | - Tarek Trabelsi
- Department of Earth and Environment Science and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6243, USA
| | - Joseph S. Francisco
- Department of Earth and Environment Science and Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6243, USA
| | - Qian Yao
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - Changjian Xie
- Institute of Modern Physics, Shaanxi Key Laboratory for Theoretical Physics Frontiers, Northwest University, Xian, Shaanxi 710127, China
| | - Hua Guo
- Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, USA
| | - Xiaoqing Zeng
- Department of Chemistry, Fudan University, Shanghai 200433, China
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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Hassani N, Mousavipour SH, Mohajeri A. Kinetics and Mechanism of the NH (X 3Σ -) + SO (X 3Σ -) Reaction: A Theoretical Approach. J Phys Chem A 2020; 124:6585-6600. [PMID: 32701283 DOI: 10.1021/acs.jpca.0c01950] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction mechanism, product branching ratios, and relevant rate constants for the reaction of imidogen (NH) with sulfur monoxide (SO) over singlet and triplet potential energy surfaces are theoretically investigated. Various quantum chemical methods at the single-reference methods (PBE, M06-2X, MP2, GBS-QB3, G3MP2B3, and CCSD(T)) and the multi-reference methods of CASPT2 are carried out to examine the characteristics of the title reaction's potential energy surface. Eighteen chemically activated intermediates and more than 35 different reaction channels are predicted over the singlet surface, while less species and channels are distinguished over the triplet surface. The entrance channels for both surfaces appeared to be barrier-less association reactions to form pre-reaction energized intermediates of singlet or triplet HNSO or HNOS. OH and NS radicals are indicated as the major products for the title reaction on both surfaces in agreement with the reported experimental observations. The RRKM-steady state approximation method is used to calculate the rate constants and branching ratios of the main products. The obtained overall rate constant is in agreement with the available reported experimental data over the wide range of temperature from 300 to 3000 K. By considering single-reference calculations, the singlet and triplet total rate constants were found to be k(T) = 5.04 × 1010 and 2.47 × 1012 T-0.83 exp(-1.56 kJ mol-1/T), respectively. Also, the total rate constant for the consumption of reactants by inclusion of multi-reference calculations was found to be in the range of 3.86 × 1010 to 4.18 × 1010, depending on the level of calculations. In addition, our results revealed that the total rate constant for the NH + SO reaction is pressure-independent in the range of 0.1-2000 Torr.
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Affiliation(s)
- Nasim Hassani
- Department of Chemistry, College of Science, Shiraz University, Shiraz 7194684795, Iran
| | - S Hosein Mousavipour
- Department of Chemistry, College of Science, Shiraz University, Shiraz 7194684795, Iran.,Department of Chemistry, Faculty of Science, Sultan Qaboos University, Muscat 123, Sultanate of Oman
| | - Afshan Mohajeri
- Department of Chemistry, College of Science, Shiraz University, Shiraz 7194684795, Iran
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Chen C, Wang L, Zhao X, Wu Z, Bernhardt B, Eckhardt AK, Schreiner PR, Zeng X. Photochemistry of HNSO 2 in cryogenic matrices: spectroscopic identification of the intermediates and mechanism. Phys Chem Chem Phys 2020; 22:7975-7983. [PMID: 32236270 DOI: 10.1039/d0cp00962h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Small molecules solely consisting of H, N, O, and S are highly relevant intermediates in atmospheric chemistry and biology. Even though several isomers of [HNO2S] have been computationally predicted, only the IR spectra for the two lowest-energy isomers HNSO2 and syn-syn HONSO have been previously reported. Herein, the photochemistry (193 nm laser) of HNSO2 in N2-, Ne-, and Ar-matrices (≤15 K) has been studied. Aside from syn-syn HONSO, several new isomers including anti-syn HONSO, gauche-syn HOSNO, syn HOS(O)N, anti HOS(O)N, syn HS(O)NO, anti HN(O)SO, gauche-syn HSONO, and an elusive caged-radical pair HOS˙˙NO have been identified. Additionally, the formation of fragments HONO, HO˙, ˙NO, and ˙NO2 has also been observed. The characterization of these species with matrix-isolation IR and UV/Vis spectroscopy is supported by 15N-labeling and quantum chemical computations at the B3LYP/6-311++G(3df,3pd) level. Furthermore, the photo-induced isomerization reactions, including the conformational conversion of syn-syn HONSO → anti-syn HONSO and reversible isomerization of HOSNO ↔ anti-syn HONSO, syn-syn HONSO ↔ HN(O)SO, HSONO ↔ HS(O)NO, and HOS˙˙NO ↔ HOSNO have also been observed, and the underlying mechanism is discussed.
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Affiliation(s)
- Changyun Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China.
| | - Lina Wang
- Department of Chemistry, Fudan University, 200433 Shanghai, China
| | - Xiaofang Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China.
| | - Zhuang Wu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China.
| | - Bastian Bernhardt
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - André K Eckhardt
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Peter R Schreiner
- Institute of Organic Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 215123 Suzhou, China. and Department of Chemistry, Fudan University, 200433 Shanghai, China
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Sharapa DI, Genaev A, Cavallo L, Minenkov Y. A Robust and Cost‐Efficient Scheme for Accurate Conformational Energies of Organic Molecules. Chemphyschem 2018; 20:92-102. [DOI: 10.1002/cphc.201801063] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Dmitry I. Sharapa
- Institute of Catalysis Research and TechnologyKarlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz Platz 1 Eggenstein-Leopoldshafen D-76344 Germany
| | - Alexander Genaev
- Vorozhtsov Novosibirsk Institute of Organic Chemistry Academician Lavrent'ev Ave., 9 Novosibirsk 630090 Russian Federation
| | - Luigi Cavallo
- KAUST Catalysis Center (KCC)King Abdullah University of Science and Technology Thuwal- 23955-6900 Saudi Arabia
| | - Yury Minenkov
- Moscow Institute of Physics and Technology Institutskiy Pereulok 9, Dolgoprudny Moscow Region 141700 Russia
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Chemes DM, Cutin EH, Álvarez RM, Robles NL, Oberhammer H. On the search of the influence of substituents in the structural and vibrational properties of p-substituted sulfinylanilines: Study of p-trifluoromethylsulfinylaniline. J Fluor Chem 2018. [DOI: 10.1016/j.jfluchem.2018.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Wu Z, Feng R, Xu J, Lu Y, Lu B, Yang T, Frenking G, Trabelsi T, Francisco JS, Zeng X. Photoinduced Sulfur-Nitrogen Bond Rotation and Thermal Nitrogen Inversion in Heterocumulene OSNSO. J Am Chem Soc 2018; 140:1231-1234. [PMID: 29307182 DOI: 10.1021/jacs.7b12622] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An exotic ternary S, N, O heterocumulene OSNSO in syn-syn (A) and syn-anti (B) conformations has been generated in the gas phase through flash vacuum pyrolysis of CF3S(O)NSO at 700 K. Upon visible light irradiation (570 ± 20 or 532 nm), both A and B, isolated in cryogenic matrices (N2, Ne, Ar, and Kr, <30 K), convert to a higher-energy anti-anti conformer (C). The reverse conformational transformation occurs either through S═N bond rotation (C to A and B) under visible light irradiation (400 ± 20 nm) at 2.8 K or through thermal nitrogen inversion (C to A) in the temperature range of 20-30 K, for which an exceptionally low activation barrier of 1.18 ± 0.07 kcal mol-1 has been experimentally determined.
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Affiliation(s)
- Zhuang Wu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 215123 Suzhou, China
| | - Ruijuan Feng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 215123 Suzhou, China
| | - Jian Xu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 215123 Suzhou, China
| | - Yan Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 215123 Suzhou, China
| | - Bo Lu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 215123 Suzhou, China
| | - Tao Yang
- Fachbereich Chemie, Philipps-Universität Marburg , Marburg D-35032, Germany
| | - Gernot Frenking
- Fachbereich Chemie, Philipps-Universität Marburg , Marburg D-35032, Germany.,Institute of Advanced Synthesis, Nanjing Tech University , 211816 Nanjing, China
| | - Tarek Trabelsi
- Department of Chemistry, University of Nebraska-Lincoln , Lincoln, Nebraska 68588, United States
| | - Joseph S Francisco
- Department of Chemistry, University of Nebraska-Lincoln , Lincoln, Nebraska 68588, United States
| | - Xiaoqing Zeng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University , 215123 Suzhou, China
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