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Hammami H, Ben Mohamed F, Mohamed D, Ben El Hadj Rhouma M, Al Mogren MM, Hochlaf M. One-electron pseudo-potential investigation of NO(X 2Π)–Ar n clusters ( n = 1,2,3,4). Mol Phys 2017. [DOI: 10.1080/00268976.2017.1337252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- H. Hammami
- Laboratoire de Recherche d'Etude des Milieux Ionisés et Réactifs (EMIR), Institut Préparatoire aux Etudes d'Ingénieurs, Université de Monastir, Tunisie
| | - F.E. Ben Mohamed
- Laboratoire de Recherche d'Etude des Milieux Ionisés et Réactifs (EMIR), Institut Préparatoire aux Etudes d'Ingénieurs, Université de Monastir, Tunisie
| | - D. Mohamed
- Laboratoire de Recherche d'Etude des Milieux Ionisés et Réactifs (EMIR), Institut Préparatoire aux Etudes d'Ingénieurs, Université de Monastir, Tunisie
| | - M. Ben El Hadj Rhouma
- Laboratoire de Recherche d'Etude des Milieux Ionisés et Réactifs (EMIR), Institut Préparatoire aux Etudes d'Ingénieurs, Université de Monastir, Tunisie
| | - M. M. Al Mogren
- Chemistry Department, Faculty of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - M. Hochlaf
- Laboratoire Modélisation et Simulation Multi Echelle, MSME UMR 8208 CNRS, Université Paris-Est, Marne-la-Vallée, France
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Bellili A, Pan Y, Al Mogren MM, Lau KC, Hochlaf M. Electronic, structural and vibrational induced effects upon ionization of 2-quinolinone. Spectrochim Acta A Mol Biomol Spectrosc 2016; 164:1-7. [PMID: 27060413 DOI: 10.1016/j.saa.2016.03.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/22/2016] [Accepted: 03/27/2016] [Indexed: 06/05/2023]
Abstract
Using first principle methodologies, we characterize the lowest electronic states of 2-quinolinone(+) cation. The ground state of this ion is of X˜(2)A(″) nature. We deduce the adiabatic ionization energy of 2-quinolinone to be equal 8.249eV using the explicitly correlated coupled cluster level and where zero point vibrational energy, core-valence and scalar relativistic effects are taken into account. We examine also the ionization induced structural changes and vibrational shifts and analyze the electron density differences between the neutral and ionic species. These data show that the formation of 2-quinolinone(+)X˜(2)A(″) from 2-quinolinone affects strongly the HNCO group, whereas the carbon skeletal is perturbed when the upper electronic cationic states are populated. The comparison to 2-pyridone allows the elucidation of the effect of benzene ring fused with this heterocyclic ring. Since quinolones and pyridones are both model systems of DNA bases, these findings might help in understanding the charge redistribution in these biological entities upon ionization.
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Affiliation(s)
- A Bellili
- Université Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle, MSME UMR 8208 CNRS, 5 bd Descartes, 77454 Marne-la-Vallée, France
| | - Y Pan
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong
| | - M M Al Mogren
- Chemistry Department, Faculty of Science, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia
| | - K C Lau
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong.
| | - M Hochlaf
- Université Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle, MSME UMR 8208 CNRS, 5 bd Descartes, 77454 Marne-la-Vallée, France.
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Zaag AS, Yazidi O, Jaidane NE, Ross MW, Castleman AW, Al Mogren MM, Linguerri R, Hochlaf M. Structure, Reactivity, and Fragmentation of Small Multi-Charged Methane Clusters. J Phys Chem A 2016; 120:1669-76. [DOI: 10.1021/acs.jpca.6b00734] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Sanaa Zaag
- Laboratoire de Spectroscopie
Atomique, Moléculaire et Applications - LSAMA, Université de Tunis Al Manar, Tunis, Tunisia
| | - O. Yazidi
- Laboratoire de Spectroscopie
Atomique, Moléculaire et Applications - LSAMA, Université de Tunis Al Manar, Tunis, Tunisia
| | - N.-E. Jaidane
- Laboratoire de Spectroscopie
Atomique, Moléculaire et Applications - LSAMA, Université de Tunis Al Manar, Tunis, Tunisia
| | - M. W. Ross
- Departments of Chemistry
and Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - A. W. Castleman
- Departments of Chemistry
and Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - M. M. Al Mogren
- Chemistry
Department, Faculty
of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - R. Linguerri
- Laboratoire Modélisation
et Simulation Multi-Echelle, MSME UMR 8208 CNRS, Université Paris-Est, 5 bd Descartes, 77454 Marne-la-Vallée, France
| | - M. Hochlaf
- Laboratoire Modélisation
et Simulation Multi-Echelle, MSME UMR 8208 CNRS, Université Paris-Est, 5 bd Descartes, 77454 Marne-la-Vallée, France
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Ben Yaghlane S, Jaidane NE, Cotton CE, Francisco JS, Al Mogren MM, Linguerri R, Hochlaf M. Theoretical spectroscopic investigations of HNS(q) and HSN(q) (q = 0, +1, -1) in the gas phase. J Chem Phys 2015; 140:244309. [PMID: 24985640 DOI: 10.1063/1.4883915] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We performed accurate ab initio investigations of the geometric parameters and the vibrational structure of neutral HNS/HSN triatomics and their singly charged anions and cations. We used standard and explicitly correlated coupled cluster approaches in connection with large basis sets. At the highest levels of description, we show that results nicely approach those obtained at the complete basis set limit. Moreover, we generated the three-dimensional potential energy surfaces (3D PESs) for these molecular entities at the coupled cluster level with singles and doubles and a perturbative treatment of triple excitations, along with a basis set of augmented quintuple-zeta quality (aug-cc-pV5Z). A full set of spectroscopic constants are deduced from these potentials by applying perturbation theory. In addition, these 3D PESs are incorporated into variational treatment of the nuclear motions. The pattern of the lowest vibrational levels and corresponding wavefunctions, up to around 4000 cm(-1) above the corresponding potential energy minimum, is presented for the first time.
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Affiliation(s)
- S Ben Yaghlane
- Laboratoire de Spectroscopie Atomique, Moléculaire et Applications - LSAMA, Université de Tunis El Manar, Tunis, Tunisia
| | - N-E Jaidane
- Laboratoire de Spectroscopie Atomique, Moléculaire et Applications - LSAMA, Université de Tunis El Manar, Tunis, Tunisia
| | - C E Cotton
- Department of Chemistry and Department of Earth and Atmospheric Science, Purdue University, West Lafayette, Indiana 49707, USA
| | - J S Francisco
- Department of Chemistry and Department of Earth and Atmospheric Science, Purdue University, West Lafayette, Indiana 49707, USA
| | - M M Al Mogren
- Chemistry Department, Faculty of Science, King Saud University, PO Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - R Linguerri
- Laboratoire Modélisation et Simulation Multi Echelle, Université Paris-Est, MSME UMR 8208 CNRS, 5 bd Descartes, 77454 Marne-la-Vallée, France
| | - M Hochlaf
- Laboratoire Modélisation et Simulation Multi Echelle, Université Paris-Est, MSME UMR 8208 CNRS, 5 bd Descartes, 77454 Marne-la-Vallée, France
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Al Mogren MM, Denis-Alpizar O, Abdallah DB, Stoecklin T, Halvick P, Senent ML, Hochlaf M. On the use of explicitly correlated treatment methods for the generation of accurate polyatomic –He/H2 interaction potential energy surfaces: The case of C3–He complex and generalization. J Chem Phys 2014; 141:044308. [DOI: 10.1063/1.4890729] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- M. M. Al Mogren
- Chemistry Department, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - O. Denis-Alpizar
- Université de Bordeaux, ISM, CNRS UMR 5255, 33405 Talence Cedex, France
- Departamento de Física, Universidad de Matanzas, Matanzas 40100, Cuba
| | - D. Ben Abdallah
- Laboratoire de Spectroscopie Atomique, Moléculaire et Applications – LSAMA Université de Tunis, Tunis, Tunisia and Department of General Studies, Riyadh Corporation of Technology, Technical and Vocational Training Corporation, P.O. Box: 42826, Riyadh 11551, Kingdom of Saudi Arabia
| | - T. Stoecklin
- Université de Bordeaux, ISM, CNRS UMR 5255, 33405 Talence Cedex, France
| | - P. Halvick
- Université de Bordeaux, ISM, CNRS UMR 5255, 33405 Talence Cedex, France
| | - M.-L. Senent
- Departamento de Química y Física Teóricas, Instituto de Estructura de la Materia, IEM-C.S.I.C., Serrano 121, Madrid 28006, Spain
| | - M. Hochlaf
- Université Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle, MSME UMR 8208 CNRS, 5 bd Descartes, 77454 Marne-la-Vallée, France
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Hammami H, Yazidi O, Ben El Hadj Rhouma M, Al Mogren MM, Hochlaf M. Theoretical investigations of the IO,q+ (q = 2, 3, 4) multi-charged ions: Metastability, characterization and spectroscopy. J Chem Phys 2014; 141:014302. [DOI: 10.1063/1.4884960] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- H. Hammami
- Université Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle, MSME UMR 8208 CNRS, 5 bd Descartes, 77454 Marne-la-Vallée, France
- EMIR, Institut Préparatoire aux Etudes d’Ingénieurs, Monastir, Tunisie
| | - O. Yazidi
- Laboratoire de Spectroscopie Atomique Moléculaire et Applications, Département de Physique, Faculté des Sciences de Tunis, Université de Tunis-El Manar, Le Belvédère, 1060 Tunis, Tunisie
| | | | - M. M. Al Mogren
- Chemistry Department, Faculty of Science, King Saud University, PO Box 2455, Riyadh 11451, Kingdom of Saudi Arabia
| | - M. Hochlaf
- Université Paris-Est, Laboratoire Modélisation et Simulation Multi Echelle, MSME UMR 8208 CNRS, 5 bd Descartes, 77454 Marne-la-Vallée, France
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