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Höveler K, Deiglmayr J, Merkt F. Deviation of the rate of the reaction from Langevin behaviour below 1 K, branching ratios for the and product channels, and product-kinetic-energy distributions. Mol Phys 2021. [DOI: 10.1080/00268976.2021.1954708] [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]
Affiliation(s)
| | - Johannes Deiglmayr
- Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
- Department of Physics, University of Leipzig, Leipzig, Germany
| | - Frédéric Merkt
- Laboratory of Physical Chemistry, ETH Zurich, Zurich, Switzerland
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2
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Huang J, Yang B, Shu J, Zhang Z, Li Z, Jiang K. Kinetic Understanding of the Ultrahigh Ionization Efficiencies (up to 28%) of Excited-State CH 2Cl 2-Induced Associative Ionization: A Case Study with Nitro Compounds. Anal Chem 2019; 91:5605-5612. [PMID: 30841695 DOI: 10.1021/acs.analchem.8b04813] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Excited-state CH2Cl2-induced associative ionization (AI) is a newly developed ionization method that is very effective for oxygenated organics. However, this method is not widely known. In this study, an unprecedented ionization efficiency and ultrafast reaction rate of AI toward nitro compounds were observed. The ionization efficiencies of o-nitrotoluene (o-NT), m-nitrotoluene (m-NT), and nitrobenzene (NB) were as high as (28 ± 3)%, (27 ± 2)%, and (13 ± 1)%, respectively (∼1-3 ions for every 10 molecules). The measured reaction rate coefficients of these nitroaromatics were (0.5-1.3) × 10-7 molecule-1 cm3 s-1 (∼300 K). These unusual rate coefficients indicated strong long-range interactions between the two neutral reactants, which was regarded as a key factor leading to the ultrahigh ionization efficiency. The detection sensitivities of the nitroaromatics, (1.01-2.16) × 104 counts pptv-1 in 10 s acquisition time, were obtained by an AI time-of-flight mass spectrometer (AI-TOFMS). These experimental results not only provide new insight into the AI reaction but also reveal an excellent ionization method that can improve the detection sensitivity of nitroaromatics to an unprecedented degree.
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Affiliation(s)
- Jingyun Huang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China.,State Key Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , People's Republic of China
| | - Bo Yang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China
| | - Jinian Shu
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China.,State Key Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , People's Republic of China
| | - Zuojian Zhang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China.,State Key Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , People's Republic of China
| | - Zhen Li
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China
| | - Kui Jiang
- National Engineering Laboratory for VOCs Pollution Control Material & Technology , University of Chinese Academy of Sciences , Beijing 101408 , People's Republic of China.,State Key Laboratory of Environment Simulation and Pollution Control, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , People's Republic of China
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3
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Joalland B, Jamal-Eddine N, Kłos J, Lique F, Trolez Y, Guillemin JC, Carles S, Biennier L. Low-Temperature Reactivity of C2n+1N(-) Anions with Polar Molecules. J Phys Chem Lett 2016; 7:2957-2961. [PMID: 27399038 DOI: 10.1021/acs.jpclett.6b01191] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Following the recent discovery of molecular anions in the interstellar medium, we report on the kinetics of proton transfer reactions between cyanopolyynide anions C2n+1N(-) (n = 0, 1, 2) and formic acid HCOOH. The results, obtained from room temperature down to 36 K by means of uniform supersonic flows, show a surprisingly weak temperature dependence of the CN(-) reaction rate, in contrast with longer chain anions. The CN(-) + HCOOH reaction is further studied theoretically via a reduced dimensional quantum model that highlights a tendency of the reaction probability to decrease with temperature, in agreement with experimental data but at the opposite of conventional long-range capture theories. In return, comparing HCOOH to HC3N as target molecules suggests that dipole-dipole interactions must play an active role in overcoming this limiting effect at low temperatures. This work provides new fundamental insights on prototypical reactions between polar anions and polar molecules along with critical data for astrochemical modeling.
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Affiliation(s)
- Baptiste Joalland
- Institut de Physique de Rennes, Département de Physique Moléculaire, UMR CNRS 6251, Université de Rennes 1 , Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Nour Jamal-Eddine
- Institut de Physique de Rennes, Département de Physique Moléculaire, UMR CNRS 6251, Université de Rennes 1 , Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Jacek Kłos
- Department of Chemistry and Biochemistry, University of Maryland , College Park, Maryland 20742-2021, United States
| | - François Lique
- Laboratoire Ondes et Milieux Complexes, UMR CNRS 6294, Université du Havre , 25 rue Philippe Lebon, BP 1123, 76063 Le Havre Cedex, France
| | - Yann Trolez
- Institut des Sciences Chimiques de Rennes, Ecole Nationale Supérieure de Chimie de Rennes, UMR CNRS 6226, 11 Allée de Beaulieu, 35708 Rennes Cedex 7, France
| | - Jean-Claude Guillemin
- Institut des Sciences Chimiques de Rennes, Ecole Nationale Supérieure de Chimie de Rennes, UMR CNRS 6226, 11 Allée de Beaulieu, 35708 Rennes Cedex 7, France
| | - Sophie Carles
- Institut de Physique de Rennes, Département de Physique Moléculaire, UMR CNRS 6251, Université de Rennes 1 , Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Ludovic Biennier
- Institut de Physique de Rennes, Département de Physique Moléculaire, UMR CNRS 6251, Université de Rennes 1 , Campus de Beaulieu, 35042 Rennes Cedex, France
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Wang ZC, Cole CA, Demarais NJ, Snow TP, Bierbaum VM. Reactions of Azine Anions with Nitrogen and Oxygen Atoms: Implications for Titan’s Upper Atmosphere and Interstellar Chemistry. J Am Chem Soc 2015; 137:10700-9. [DOI: 10.1021/jacs.5b06089] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhe-Chen Wang
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Callie A. Cole
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Nicholas J. Demarais
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
| | - Theodore P. Snow
- Department
of Astrophysical and Planetary Sciences, University of Colorado, Boulder, Colorado 80309, United States
- Center
for Astrophysics and Space Astronomy, University of Colorado, Boulder, Colorado 80309, United States
| | - Veronica M. Bierbaum
- Department
of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309, United States
- Center
for Astrophysics and Space Astronomy, University of Colorado, Boulder, Colorado 80309, United States
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5
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Kaiser RI, Mebel AM. On the formation of polyacetylenes and cyanopolyacetylenes in Titan's atmosphere and their role in astrobiology. Chem Soc Rev 2012; 41:5490-501. [DOI: 10.1039/c2cs35068h] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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