1
|
Okorie US, Ikot AN, Chukwuocha EO. The Improved Deformed Exponential‐type Potential Energy Model for
N
2
,
NI
,
ScI
, and
RbH
Diatomic Molecules. B KOREAN CHEM SOC 2020. [DOI: 10.1002/bkcs.12039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Uduakobong S. Okorie
- Department of Physics, Theoretical Physics GroupUniversity of Port Harcourt Choba Nigeria
| | - Akpan N. Ikot
- Department of Physics, Theoretical Physics GroupUniversity of Port Harcourt Choba Nigeria
| | - Ephraim O. Chukwuocha
- Department of Physics, Theoretical Physics GroupUniversity of Port Harcourt Choba Nigeria
| |
Collapse
|
2
|
Capitelli M, Pietanza LD. Past and present aspects of Italian plasma chemistry. RENDICONTI LINCEI. SCIENZE FISICHE E NATURALI 2019. [DOI: 10.1007/s12210-019-00781-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
3
|
Pietanza L, Colonna G, Laporta V, Celiberto R, D’Ammando G, Laricchiuta A, Capitelli M. Influence of Electron Molecule Resonant Vibrational Collisions over the Symmetric Mode and Direct Excitation-Dissociation Cross Sections of CO2 on the Electron Energy Distribution Function and Dissociation Mechanisms in Cold Pure CO2 Plasmas. J Phys Chem A 2016; 120:2614-28. [DOI: 10.1021/acs.jpca.6b01154] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L.D. Pietanza
- PLASMI
Lab, CNR NANOTEC, via Amendola 122/D, 70126 Bari, Italy
| | - G. Colonna
- PLASMI
Lab, CNR NANOTEC, via Amendola 122/D, 70126 Bari, Italy
| | - V. Laporta
- PLASMI
Lab, CNR NANOTEC, via Amendola 122/D, 70126 Bari, Italy
- Department
of Physics and Astronomy, University College London, London WC1E 6BT, U.K
| | - R. Celiberto
- PLASMI
Lab, CNR NANOTEC, via Amendola 122/D, 70126 Bari, Italy
- Dipartimento
di Ingegneria Civile, Ambientale del Territorio, Edile e di Chimica, Politecnico di Bari, via E Orabona 4, 70126 Bari, Italy
| | - G. D’Ammando
- PLASMI
Lab, CNR NANOTEC, via Amendola 122/D, 70126 Bari, Italy
| | - A. Laricchiuta
- PLASMI
Lab, CNR NANOTEC, via Amendola 122/D, 70126 Bari, Italy
| | - M. Capitelli
- PLASMI
Lab, CNR NANOTEC, via Amendola 122/D, 70126 Bari, Italy
| |
Collapse
|
4
|
Esposito F, Coppola CM, De Fazio D. Complementarity between Quantum and Classical Mechanics in Chemical Modeling. The H + HeH+ → H2 + + He Reaction: A Rigourous Test for Reaction Dynamics Methods. J Phys Chem A 2015; 119:12615-26. [PMID: 26583384 DOI: 10.1021/acs.jpca.5b09660] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this work we present a dynamical study of the H + HeH+ → H2+ + He reaction in a collision energy range from 0.1 meV to 10 eV, suitable to be used in applicative models. The paper extends and complements a recent work [ Phys. Chem. Chem. Phys. 2014, 16, 11662] devoted to the characterization of the reactivity from the ultracold regime up to the three-body dissociation breakup. In particular, the accuracy of the quasi-classical trajectory method below the three-body dissociation threshold has been assessed by a detailed comparison with previous calculations performed with different reaction dynamics methods, whereas the reliability of the results in the high energy range has been checked by a direct comparison with the available experimental data. Integral cross sections for several HeH+ roto-vibrational states have been analyzed and used to understand the extent of quantum effects in the reaction dynamics. By using the quasi-classical trajectory method and quantum mechanical close coupling data, respectively, in the high and low collision energy ranges, we obtain highly accurate thermal rate costants until 15 000 K including all (178) the roto-vibrational bound and quasi-bound states of HeH+. The role of the collision-induced dissociation is also discussed and explicitly calculated for the ground roto-vibrational state of HeH+.
Collapse
Affiliation(s)
- Fabrizio Esposito
- Consiglio Nazionale delle Ricerche, Istituto di Nanotecnologia, via Amendola 122/d, 70126 Bari, Italy
| | - Carla Maria Coppola
- Consiglio Nazionale delle Ricerche, Istituto di Nanotecnologia, via Amendola 122/d, 70126 Bari, Italy.,INAF-Osservatorio Astrofisico di Arcetri , 50125 Firenze, Italy
| | - Dario De Fazio
- Consiglio Nazionale delle Ricerche, Istituto di Struttura della Materia, Area della Ricerca di Roma 1, 00016 Roma, Italy
| |
Collapse
|
5
|
Bender JD, Valentini P, Nompelis I, Paukku Y, Varga Z, Truhlar DG, Schwartzentruber T, Candler GV. An improved potential energy surface and multi-temperature quasiclassical trajectory calculations of N2 + N2 dissociation reactions. J Chem Phys 2015; 143:054304. [DOI: 10.1063/1.4927571] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Jason D. Bender
- Department of Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Paolo Valentini
- Department of Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Ioannis Nompelis
- Department of Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Yuliya Paukku
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Zoltan Varga
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Donald G. Truhlar
- Department of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Thomas Schwartzentruber
- Department of Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - Graham V. Candler
- Department of Aerospace Engineering and Mechanics, University of Minnesota, Minneapolis, Minnesota 55455, USA
| |
Collapse
|
6
|
Quasi-resonant vibrational energy transfer in N2+N2 collisions: Effect of the long-range interaction. Chem Phys Lett 2015. [DOI: 10.1016/j.cplett.2014.12.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
7
|
Panesi M, Munafò A, Magin TE, Jaffe RL. Nonequilibrium shock-heated nitrogen flows using a rovibrational state-to-state method. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2014; 90:013009. [PMID: 25122371 DOI: 10.1103/physreve.90.013009] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Indexed: 06/03/2023]
Abstract
A rovibrational collisional model is developed to study the internal energy excitation and dissociation processes behind a strong shock wave in a nitrogen flow. The reaction rate coefficients are obtained from the ab initio database of the NASA Ames Research Center. The master equation is coupled with a one-dimensional flow solver to study the nonequilibrium phenomena encountered in the gas during a hyperbolic reentry into Earth's atmosphere. The analysis of the populations of the rovibrational levels demonstrates how rotational and vibrational relaxation proceed at the same rate. This contrasts with the common misconception that translational and rotational relaxation occur concurrently. A significant part of the relaxation process occurs in non-quasi-steady-state conditions. Exchange processes are found to have a significant impact on the relaxation of the gas, while predissociation has a negligible effect. The results obtained by means of the full rovibrational collisional model are used to assess the validity of reduced order models (vibrational collisional and multitemperature) which are based on the same kinetic database. It is found that thermalization and dissociation are drastically overestimated by the reduced order models. The reasons of the failure differ in the two cases. In the vibrational collisional model the overestimation of the dissociation is a consequence of the assumption of equilibrium between the rotational energy and the translational energy. The multitemperature model fails to predict the correct thermochemical relaxation due to the failure of the quasi-steady-state assumption, used to derive the phenomenological rate coefficient for dissociation.
Collapse
Affiliation(s)
- M Panesi
- University of Illinois at Urbana-Champaign, Urbana, 104 S. Wright street, Champaign, Illinois 61801, USA
| | - A Munafò
- von Karman Institute for Fluid Dynamics, chaussée de Waterloo 72, 1640 Rhode-Saint-Genèse, Belgium
| | - T E Magin
- von Karman Institute for Fluid Dynamics, chaussée de Waterloo 72, 1640 Rhode-Saint-Genèse, Belgium
| | - R L Jaffe
- NASA Ames Research Center, Moffett Field, Mountain View, California 94035, USA
| |
Collapse
|
8
|
Panesi M, Jaffe RL, Schwenke DW, Magin TE. Rovibrational internal energy transfer and dissociation of N2(1Σg+)−N(4Su) system in hypersonic flows. J Chem Phys 2013; 138:044312. [DOI: 10.1063/1.4774412] [Citation(s) in RCA: 182] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
|
9
|
Lino da Silva M, Loureiro J, Guerra V. Rotational nonequilibrium in state-resolved models for shock-heated flows. Chem Phys 2012. [DOI: 10.1016/j.chemphys.2011.08.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
10
|
Arsentiev I, Loukhovitski B, Starik A. Application of state-to-state approach in estimation of thermally nonequilibrium reaction rate constants in mode approximation. Chem Phys 2012. [DOI: 10.1016/j.chemphys.2011.06.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
11
|
Garcia E, Laganà A, Skouteris D. An innovative computational comparison of exact and centrifugal sudden quantum properties of the N + N2reaction. Phys Chem Chem Phys 2012; 14:1589-95. [DOI: 10.1039/c2cp22922f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
12
|
Lino da Silva M, Loureiro J, Guerra V. Nonequilibrium dissociation and recombination rates in nitrogen: From shock waves to discharge conditions. Chem Phys 2009. [DOI: 10.1016/j.chemphys.2009.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
13
|
Esposito F, Armenise I, Capitta G, Capitelli M. O–O2 state-to-state vibrational relaxation and dissociation rates based on quasiclassical calculations. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2008.04.004] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
14
|
Lino da Silva M, Guerra V, Loureiro J, Sá P. Vibrational distributions in N2 with an improved calculation of energy levels using the RKR method. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2008.02.048] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
15
|
|
16
|
|
17
|
Senju T, Nishimura N, Mizuguchi J. Polymorph of 2,9-dichloroquinacridone and its electronic properties. J Phys Chem A 2007; 111:2966-70. [PMID: 17388574 DOI: 10.1021/jp0671897] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The title compound (2,9-DClQA) is a hydrogen-bonded, bluish-red pigment. However, red and black single crystals have been isolated from the vapor phase in the higher- and lower-temperature regions around 380 and 150 degrees C, respectively. Because of this, correlation has been studied in the present investigation between the crystal structure and the shade in the solid state. The red phase is found to correspond to the commercial product as characterized by two-dimensional NH...O hydrogen bonds between the NH group of one molecule and the O atom of the neighboring one. On the other hand, the molecule of the black phase is heavily deformed and no intermolecular hydrogen bonds are recognized. The molecular distortion induced by crystallization in the black phase is found to displace the absorption band toward longer wavelengths to bring about the black color. In addition, the black phase is observed to be transformed into the red one around 200 degrees C.
Collapse
Affiliation(s)
- Takatoshi Senju
- Department of Applied Physics, Graduate School of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, 240-8501 Yokohama, Japan.
| | | | | |
Collapse
|
18
|
Barone V. Theoretical and computational chemistry in Italy: an overview. Theor Chem Acc 2006. [DOI: 10.1007/s00214-006-0192-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
19
|
N–N2 state to state vibrational-relaxation and dissociation rates based on quasiclassical calculations. Chem Phys 2006. [DOI: 10.1016/j.chemphys.2006.09.035] [Citation(s) in RCA: 166] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|