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Ghorai S, Naskar P, Chaudhury P. Construction of elementary reaction paths of pure and mixed Argon-Xenon clusters : a parallel tempering based study. Struct Chem 2020. [DOI: 10.1007/s11224-019-01486-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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Mirdha RH, Naskar P, Chaudhury P. Constructing transformation paths for conformational changes in (MgF 2) n clusters using a stochastic procedure. Mol Phys 2020. [DOI: 10.1080/00268976.2019.1645368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Pulak Naskar
- Department of Chemistry, University of Calcutta, Kolkata, India
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3
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Naskar P. Structural and spectroscopic aspects of SCN (-)(H 2O) n clusters and the temperature dependency of the isomers: a parallel tempering based approach. Mol Phys 2019. [DOI: 10.1080/00268976.2018.1528395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Pulak Naskar
- Department of Chemistry, University of Calcutta, Kolkata, India
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4
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Naskar P, Roy R, Talukder S, Chaudhury P. Structural, spectroscopic and thermodynamic aspects of azide–water clusters: an approach using a conjugated prescription of stochastic and quantum chemical methods. Mol Phys 2018. [DOI: 10.1080/00268976.2018.1465605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Affiliation(s)
- Pulak Naskar
- Department of Chemistry, University of Calcutta, Kolkata, India
| | - Rituparna Roy
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, India
| | - Srijeeta Talukder
- Department of Physical Chemistry, Indian Association for the Cultivation of Science, Kolkata, India
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5
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Mirdha RH, Naskar P, Chaudhury P. Mapping out reaction paths for conformational changes in (M
g
O)
n
clusters: a study based on a stochastic procedure. Struct Chem 2017. [DOI: 10.1007/s11224-017-1049-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Mirdha RH, Chaudhury P. Constructing a bunch of paths for conformational changes in size specific noble gas cluster: a study using a stochastic procedure. JOURNAL OF MATHEMATICAL CHEMISTRY 2017; 55:1916-1933. [DOI: 10.1007/s10910-017-0771-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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7
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Naskar P, Talukder S, Chaudhury P. An adaptive mutation simulated annealing based investigation of Coulombic explosion and identification of dissociation patterns in (CO2)n2+ clusters. Phys Chem Chem Phys 2017; 19:9654-9668. [DOI: 10.1039/c7cp00655a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this communication, we would like to discuss the advantages of adaptive mutation simulated annealing (AMSA) over standard simulated annealing (SA) in studying the Coulombic explosion of (CO2)n2+ clusters for n = 20–68, where ‘n’ is the size of the cluster.
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Affiliation(s)
- Pulak Naskar
- Department of Chemistry
- University of Calcutta
- Kolkata – 700 009
- India
| | - Srijeeta Talukder
- Department of Physical Chemistry
- Indian Association for the Cultivation of Science
- Kolkata – 700 032
- India
| | - Pinaki Chaudhury
- Department of Chemistry
- University of Calcutta
- Kolkata – 700 009
- India
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8
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Naskar P, Chaudhury P. An investigation on the structure, spectroscopy and thermodynamic aspects of Br2((-))(H2O)n clusters using a conjunction of stochastic and quantum chemical methods. Phys Chem Chem Phys 2016; 18:16245-57. [PMID: 27251059 DOI: 10.1039/c6cp01960a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work we obtained global as well as local structures of Br2((-))(H2O)n clusters for n = 2 to 6 followed by the study of IR-spectral features and thermochemistry for the structures. The way adopted by us to obtain structures is not the conventional one used in most cases. Here we at first generated excellent quality pre-optimized structures by exploring the suitable empirical potential energy surface using stochastic optimizer simulated annealing. These structures are then further refined using quantum chemical calculations to obtain the final structures, and spectral and thermodynamic features. We clearly showed that our approach results in very quick and better convergence which reduces the computational cost and obviously using the strategy we are able to get one [i.e. global] or more than one [i.e. global and local(s)] energetically lower structures than those which are already reported for a given cluster size. Moreover, IR-spectral results and the evolutionary trends in interaction energy, solvation energy and vertical detachment energy for global structures of each size have also been presented to establish the utility of the procedure employed.
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Affiliation(s)
- Pulak Naskar
- Department of Chemistry, University of Calcutta, 92 A P C Road, Kolkata 700 009, India.
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9
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Naskar P, Chaudhury P. Structural and spectroscopic studies of iodine dimer radical anion hydrated clusters: an approach using a combination of stochastic and quantum chemical methods. RSC Adv 2016. [DOI: 10.1039/c5ra19763e] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Structures of I2(−)(H2O)5 clusters after evaluation by simulated annealing and subsequent DFT calculation respectively.
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Affiliation(s)
- Pulak Naskar
- Department of Chemistry
- University of Calcutta
- Kolkata 700 009
- India
| | - Pinaki Chaudhury
- Department of Chemistry
- University of Calcutta
- Kolkata 700 009
- India
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10
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Wu X, Tan K, Tang Z, Lu X. Hydrogen bonding in microsolvation: photoelectron imaging and theoretical studies on Au(x)(-)-(H2O)(n) and Au(x)(-)-(CH3OH)(n) (x = 1, 2; n = 1, 2) complexes. Phys Chem Chem Phys 2014; 16:4771-7. [PMID: 24469385 DOI: 10.1039/c3cp51851e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We have combined photoelectron velocity-map imaging (VMI) spectroscopy and theoretical calculations to elucidate the geometry and energy properties of Aux(-)(Solv)n clusters with x = 1, 2; n = 1, 2; and Solv = H2O and CH3OH. Besides the blue-shifted vertical electron detachment energies (VDEs) of the complexes Au1,2(-)(Solv)n with the increase of the solvation number (n), we independently probed two distinct Au(-)(CH3OH)2 isomers, which combined with MP2/aug-cc-pVTZ(pp) calculations represent a competition between O···H-O hydrogen bonds (HBs) and Au···H-O nonconventional hydrogen bonds (NHBs). Complementary calculations provide the total binding energies of the low-energy isomers. Moreover, the relationship between the total binding energies and total VDEshift is discussed. We found that the Au1,2(-) anions exhibit halide-analogous behavior in microsolvation. These findings also demonstrate that photoelectron velocity map imaging spectroscopy with the aid of the ab initio calculations is an effective tool for investigating weak-interaction complexes.
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Affiliation(s)
- Xia Wu
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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11
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Lampre I, Marignier JL, Mirdamadi-Esfahani M, Pernot P, Archirel P, Mostafavi M. Oxidation of Bromide Ions by Hydroxyl Radicals: Spectral Characterization of the Intermediate BrOH•–. J Phys Chem A 2013; 117:877-87. [DOI: 10.1021/jp310759u] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Isabelle Lampre
- Laboratoire
de Chimie Physique, UMR 8000 CNRS/Université Paris-Sud, Faculté des
Sciences d’Orsay, Bât. 349, 91405 Orsay Cedex, France
| | - Jean-Louis Marignier
- Laboratoire
de Chimie Physique, UMR 8000 CNRS/Université Paris-Sud, Faculté des
Sciences d’Orsay, Bât. 349, 91405 Orsay Cedex, France
| | - Malaknaz Mirdamadi-Esfahani
- Laboratoire
de Chimie Physique, UMR 8000 CNRS/Université Paris-Sud, Faculté des
Sciences d’Orsay, Bât. 349, 91405 Orsay Cedex, France
| | - Pascal Pernot
- Laboratoire
de Chimie Physique, UMR 8000 CNRS/Université Paris-Sud, Faculté des
Sciences d’Orsay, Bât. 349, 91405 Orsay Cedex, France
| | - Pierre Archirel
- Laboratoire
de Chimie Physique, UMR 8000 CNRS/Université Paris-Sud, Faculté des
Sciences d’Orsay, Bât. 349, 91405 Orsay Cedex, France
| | - Mehran Mostafavi
- Laboratoire
de Chimie Physique, UMR 8000 CNRS/Université Paris-Sud, Faculté des
Sciences d’Orsay, Bât. 349, 91405 Orsay Cedex, France
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12
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Pathak AK, Mukherjee T, Maity DK. Global Minimum-Energy Structure and Spectroscopic Properties of I2.ââ
nâH2O Clusters: A Monte Carlo Simulated Annealing Study. Chemphyschem 2010; 11:220-8. [DOI: 10.1002/cphc.200900551] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Wang YF, Li ZR, Wu D, Sun CC, Gu FL. Excess electron is trapped in a large single molecular cage C60F60. J Comput Chem 2010; 31:195-203. [DOI: 10.1002/jcc.21310] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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14
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Pathak AK, Mukherjee T, Maity DK. Quantum Chemical Study on UV−vis Spectra of Microhydrated Iodine Dimer Radical Anion. J Phys Chem A 2009; 114:721-4. [DOI: 10.1021/jp9087157] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- A. K. Pathak
- Radiation and Photochemistry Division and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - T. Mukherjee
- Radiation and Photochemistry Division and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai-400085, India
| | - D. K. Maity
- Radiation and Photochemistry Division and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai-400085, India
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15
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Rudyak VY, Avakyan VG, Nazarov VB, Alfimov MV. Water cluster for the simulation of hydration of organic compounds: Applying the DFT method. ACTA ACUST UNITED AC 2009. [DOI: 10.1134/s1995078009010030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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16
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Pathak AK, Mukherjee T, Maity DK. Vibrational Analysis of I2•−.nCO2 Clusters (n = 1−10): A First Principle Study on Microsolvation. J Phys Chem A 2008; 112:12037-44. [DOI: 10.1021/jp805348q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- A. K. Pathak
- Radiation and Photochemistry Division, and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - T. Mukherjee
- Radiation and Photochemistry Division, and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - D. K. Maity
- Radiation and Photochemistry Division, and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India
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17
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Pathak AK, Mukherjee T, Maity DK. Theoretical Study on the Spectroscopic Properties of CO3.−.nH2O Clusters: Extrapolation to Bulk. Chemphyschem 2008; 9:2259-64. [DOI: 10.1002/cphc.200800429] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Pathak AK, Mukherjee T, Maity DK. Microhydration of NO3-: A Theoretical Study on Structure, Stability and IR Spectra. J Phys Chem A 2008; 112:3399-408. [DOI: 10.1021/jp711108q] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- A. K. Pathak
- Radiation and Photochemistry Division, and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - T. Mukherjee
- Radiation and Photochemistry Division, and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - D. K. Maity
- Radiation and Photochemistry Division, and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India
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19
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Pathak A, Mukherjee T, Maity D. Photodetachment and UV–Vis spectral properties of Cl2-·nH2O clusters: Extrapolation to bulk. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.01.061] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Pathak AK, Mukherjee T, Maity DK. Microhydration of X2 Gas (X = Cl, Br, and I): A Theoretical Study on X2·nH2O Clusters (n = 1−8). J Phys Chem A 2008; 112:744-51. [DOI: 10.1021/jp076594a] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- A. K. Pathak
- Radiation and Photochemistry Division, and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - T. Mukherjee
- Radiation and Photochemistry Division, and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - D. K. Maity
- Radiation and Photochemistry Division, and Theoretical Chemistry Section, Chemistry Group, Bhabha Atomic Research Centre, Mumbai 400085, India
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