251
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Akula M, El-Khoury PZ, Nag A, Bhattacharya A. Selective Zn2+ sensing using a modified bipyridine complex. RSC Adv 2014. [DOI: 10.1039/c4ra00922c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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252
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Kollipost F, Papendorf K, Lee YF, Lee YP, Suhm MA. Alcohol dimers – how much diagonal OH anharmonicity? Phys Chem Chem Phys 2014; 16:15948-56. [DOI: 10.1039/c4cp01418a] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The massive infrared attenuation and increased anharmonicity of OH stretching overtones in alcohol dimers is experimentally quantified.
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Affiliation(s)
- Franz Kollipost
- Georg-August-Universität Göttingen
- Institut für Physikalische Chemie
- 37077 Göttingen, Germany
| | - Kim Papendorf
- Georg-August-Universität Göttingen
- Institut für Physikalische Chemie
- 37077 Göttingen, Germany
| | - Yu-Fang Lee
- Department of Applied Chemistry and Institute of Molecular Science
- National Chiao Tung University
- Hsinchu 30010, Taiwan
| | - Yuan-Pern Lee
- Department of Applied Chemistry and Institute of Molecular Science
- National Chiao Tung University
- Hsinchu 30010, Taiwan
- Institute of Atomic and Molecular Sciences
- Academia Sinica
| | - Martin A. Suhm
- Georg-August-Universität Göttingen
- Institut für Physikalische Chemie
- 37077 Göttingen, Germany
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253
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Olbert-Majkut A, Lundell J, Wierzejewska M. Light-Induced Opening and Closing of the Intramolecular Hydrogen Bond in Glyoxylic Acid. J Phys Chem A 2013; 118:350-7. [DOI: 10.1021/jp409982f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Adriana Olbert-Majkut
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Jan Lundell
- Department
of Chemistry, University of Jyväskylä, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - Maria Wierzejewska
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
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254
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Shen T, Su NQ, Wu A, Xu X. Perturbative treatment of anharmonic vibrational effects on bond distances: An extended langevin dynamics method. J Comput Chem 2013; 35:467-78. [DOI: 10.1002/jcc.23516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 12/06/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Tonghao Shen
- Department of chemistry, State Key Laboratory of Physical Chemistry of Solid Surfaces, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| | - Neil Qiang Su
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, MOE Laboratory for Computational Physical Science; Fudan University; Shanghai 200433 People's Republic of China
| | - Anan Wu
- Department of chemistry, State Key Laboratory of Physical Chemistry of Solid Surfaces, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| | - Xin Xu
- Department of chemistry, State Key Laboratory of Physical Chemistry of Solid Surfaces, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
- Department of Chemistry, Collaborative Innovation Center of Chemistry for Energy Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, MOE Laboratory for Computational Physical Science; Fudan University; Shanghai 200433 People's Republic of China
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255
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Egidi F, Bloino J, Cappelli C, Barone V. A robust and effective time-independent route to the calculation of Resonance Raman spectra of large molecules in condensed phases with the inclusion of Duschinsky, Herzberg-Teller, anharmonic, and environmental effects. J Chem Theory Comput 2013; 10:346-363. [PMID: 26550003 DOI: 10.1021/ct400932e] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We present an effective time-independent implementation to model vibrational resonance Raman (RR) spectra of medium-large molecular systems with the inclusion of Franck-Condon (FC) and Herzberg-Teller (HT) effects and a full account of the possible differences between the harmonic potential energy surfaces of the ground and resonant electronic states. Thanks to a number of algorithmic improvements and very effective parallelization, the full computations of fundamentals, overtones, and combination bands can be routinely performed for large systems possibly involving more than two electronic states. In order to improve the accuracy of the results, an effective inclusion of the leading anharmonic effects is also possible, together with environmental contributions under different solvation regimes. Reduced-dimensionality approaches can further enlarge the range of applications of this new tool. Applications to imidazole, pyrene, and chlorophyll a1 in solution are reported, as well as comparisons with available experimental data.
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Affiliation(s)
- Franco Egidi
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Julien Bloino
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy ; Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici, UOS di Pisa, Via G. Moruzzi 1, 56124 Pisa, Italy
| | - Chiara Cappelli
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126 Pisa, Italy
| | - Vincenzo Barone
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
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256
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Leavitt CM, Moradi CP, Acrey BW, Douberly GE. Infrared laser spectroscopy of the helium-solvated allyl and allyl peroxy radicals. J Chem Phys 2013; 139:234301. [DOI: 10.1063/1.4844175] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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257
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Krasnoshchekov SV, Stepanov NF. Polyad quantum numbers and multiple resonances in anharmonic vibrational studies of polyatomic molecules. J Chem Phys 2013; 139:184101. [DOI: 10.1063/1.4829143] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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258
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EGIDI FRANCO, BLOINO JULIEN, CAPPELLI CHIARA, BARONE VINCENZO. Development of a virtual spectrometer for chiroptical spectroscopies: the case of nicotine. Chirality 2013; 25:701-8. [PMID: 23857879 PMCID: PMC4604657 DOI: 10.1002/chir.22200] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Accepted: 05/07/2013] [Indexed: 02/03/2023]
Abstract
The impressive advances of computational spectroscopy in most recent years are providing robust and user-friendly multifrequency virtual spectrometers, which can also be used by nonspecialists to complement experimental studies. At the heart of these developments there are latest-generation models based on Density Functional Theory for the proper treatment of stereo-electronic effects, coupled to the polarizable continuum model to deal with bulk solvent effects, and low-order perturbative treatments of anharmonic effects. Continuing our efforts to increase the range of application of virtual spectrometers, we report here about chiroptical spectroscopies with special reference to optical rotation and vibrational circular dichroism. The capabilities and possible limitations of our latest tool will be analyzed for the specific case of (S)-nicotine in vacuo and in different solvents.
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Affiliation(s)
- FRANCO EGIDI
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - JULIEN BLOINO
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti OrganoMetallici, UOS di Pisa, Via G. Moruzzi 1, 56124 Pisa, Italy
| | - CHIARA CAPPELLI
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, 56126 Pisa, Italy
| | - VINCENZO BARONE
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
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259
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Charmet AP, Stoppa P, Tasinato N, Giorgianni S, Barone V, Biczysko M, Bloino J, Cappelli C, Carnimeo I, Puzzarini C. An integrated experimental and quantum-chemical investigation on the vibrational spectra of chlorofluoromethane. J Chem Phys 2013; 139:164302. [PMID: 24182024 PMCID: PMC4612436 DOI: 10.1063/1.4825380] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The vibrational analysis of the gas-phase infrared spectra of chlorofluoromethane (CH2ClF, HCFC-31) was carried out in the range 200-6200 cm(-1). The assignment of the absorption features in terms of fundamental, overtone, combination, and hot bands was performed on the medium-resolution (up to 0.2 cm(-1)) Fourier transform infrared spectra. From the absorption cross section spectra accurate values of the integrated band intensities were derived and the global warming potential of this compound was estimated, thus obtaining values of 323, 83, and 42 on a 20-, 100-, and 500-year horizon, respectively. The set of spectroscopic parameters here presented provides the basic data to model the atmospheric behavior of this greenhouse gas. In addition, the obtained vibrational properties were used to benchmark the predictions of state-of-the-art quantum-chemical computational strategies. Extrapolated complete basis set limit values for the equilibrium geometry and harmonic force field were obtained at the coupled-cluster singles and doubles level of theory augmented by a perturbative treatment of triple excitations, CCSD(T), in conjunction with a hierarchical series of correlation-consistent basis sets (cc-pVnZ, with n = T, Q, and 5), taking also into account the core-valence correlation effects and the corrections due to diffuse (aug) functions. To obtain the cubic and quartic semi-diagonal force constants, calculations employing second-order Møller-Plesset perturbation (MP2) theory, the double-hybrid density functional B2PLYP as well as CCSD(T) were performed. For all anharmonic force fields the performances of two different perturbative approaches in computing the vibrational energy levels (i.e., the generalized second order vibrational treatment, GVPT2, and the recently proposed hybrid degeneracy corrected model, HDCPT2) were evaluated and the obtained results allowed us to validate the spectroscopic predictions yielded by the HDCPT2 approach. The predictions of the deperturbed second-order perturbation approach, DVPT2, applied to the computation of infrared intensities beyond the double-harmonic approximation were compared to the accurate experimental values here determined. Anharmonic DFT and MP2 corrections to CCSD(T) intensities led to a very good agreement with the absorption cross section measurements over the whole spectral range here analysed.
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Affiliation(s)
- Andrea Pietropolli Charmet
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Calle Larga S. Marta 2137, I-30123 Venezia, Italy
| | - Paolo Stoppa
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Calle Larga S. Marta 2137, I-30123 Venezia, Italy
| | - Nicola Tasinato
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Calle Larga S. Marta 2137, I-30123 Venezia, Italy
| | - Santi Giorgianni
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Calle Larga S. Marta 2137, I-30123 Venezia, Italy
| | - Vincenzo Barone
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Pisa, Polo Fibonacci Largo B. Pontecorvo 3, I-56127 Pisa, Italy
| | | | - Julien Bloino
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
- Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti OrganoMetallici (CNR-ICCOM), Area della Ricerca CNR di Pisa, Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Chiara Cappelli
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
- Universita’ di Pisa, Dipartimento di Chimica e Chimica Industriale, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Ivan Carnimeo
- Scuola Normale Superiore, Piazza dei Cavalieri 7, 56126 Pisa, Italy
- Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Pisa, Polo Fibonacci Largo B. Pontecorvo 3, I-56127 Pisa, Italy
- Universita’ di Pisa, Dipartimento di Chimica e Chimica Industriale, Via Risorgimento 35, I-56126 Pisa, Italy
| | - Cristina Puzzarini
- Dipartimento di Chimica “Giacomo Ciamician”, Università di Bologna, Via F. Selmi, 2, 40126 Bologna, Italy
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260
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Cerezo J, Zúñiga J, Requena A, Ávila Ferrer FJ, Santoro F. Harmonic Models in Cartesian and Internal Coordinates to Simulate the Absorption Spectra of Carotenoids at Finite Temperatures. J Chem Theory Comput 2013; 9:4947-58. [DOI: 10.1021/ct4005849] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Javier Cerezo
- Departamento de Química
Física, Universidad de Murcia, 30100 Murcia, Spain
| | - José Zúñiga
- Departamento de Química
Física, Universidad de Murcia, 30100 Murcia, Spain
| | - Alberto Requena
- Departamento de Química
Física, Universidad de Murcia, 30100 Murcia, Spain
| | - Francisco J. Ávila Ferrer
- CNR−Consiglio Nazionale
delle Ricerche, Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy and
- Physical Chemistry, Faculty of Science, University of Málaga, Málaga 29071, Spain
| | - Fabrizio Santoro
- CNR−Consiglio
Nazionale delle Ricerche, Istituto di Chimica dei Composti Organo Metallici (ICCOM-CNR), UOS di Pisa, Area della Ricerca, via G. Moruzzi 1, I-56124 Pisa, Italy
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261
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Yamaguchi M. Calculation of infrared absorption intensities of combination bands of cyclic acid dimers by vibrational second order perturbation theory. COMPUT THEOR CHEM 2013. [DOI: 10.1016/j.comptc.2013.08.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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262
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Carnimeo I, Puzzarini C, Tasinato N, Stoppa P, Charmet AP, Biczysko M, Cappelli C, Barone V. Anharmonic theoretical simulations of infrared spectra of halogenated organic compounds. J Chem Phys 2013; 139:074310. [PMID: 23968095 PMCID: PMC4604659 DOI: 10.1063/1.4817401] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The recent implementation of the computation of infrared (IR) intensities beyond the double-harmonic approximation [J. Bloino and V. Barone, J. Chem. Phys. 136, 124108 (2012)] paved the route to routine calculations of infrared spectra for a wide set of molecular systems. Halogenated organic compounds represent an interesting class of molecules, from both an atmospheric and computational point of view, due to the peculiar chemical features related to the halogen atoms. In this work, we simulate the IR spectra of eight halogenated molecules (CH2F2, CHBrF2, CH2DBr, CF3Br, CH2CHF, CF2CFCl, cis-CHFCHBr, cis-CHFCHI), using two common hybrid and double-hybrid density functionals in conjunction with both double- and triple-ζ quality basis sets (SNSD and cc-pVTZ) as well as employing the coupled-cluster theory with basis sets of at least triple-ζ quality. Finally, we compare our results with available experimental spectra, with the aim of checking the accuracy and the performances of the computational approaches.
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Affiliation(s)
- Ivan Carnimeo
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Risorgimento 35, I-56126 Pisa, Italy.
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263
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Barone V, Biczysko M, Bloino J, Egidi F, Puzzarini C. Accurate structure, thermodynamics, and spectroscopy of medium-sized radicals by hybrid coupled cluster/density functional theory approaches: the case of phenyl radical. J Chem Phys 2013; 138:234303. [PMID: 23802956 PMCID: PMC4606980 DOI: 10.1063/1.4810863] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The coupled-cluster singles doubles model with perturbative treatment of triples (CCSD(T)) coupled with extrapolation to the complete basis-set limit and additive approaches represent the "golden standard" for the structural and spectroscopic characterization of building blocks of biomolecules and nanosystems. However, when open-shell systems are considered, additional problems related to both specific computational difficulties and the need of obtaining spin-dependent properties appear. In this contribution, we present a comprehensive study of the molecular structure and spectroscopic (IR, Raman, EPR) properties of the phenyl radical with the aim of validating an accurate computational protocol able to deal with conjugated open-shell species. We succeeded in obtaining reliable and accurate results, thus confirming and, partly, extending the available experimental data. The main issue to be pointed out is the need of going beyond the CCSD(T) level by including a full treatment of triple excitations in order to fulfil the accuracy requirements. On the other hand, the reliability of density functional theory in properly treating open-shell systems has been further confirmed.
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Affiliation(s)
- Vincenzo Barone
- Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56126 Pisa, Italy
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264
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Egidi F, Bloino J, Cappelli C, Barone V, Tomasi J. Tuning of NMR and EPR parameters by vibrational averaging and environmental effects: an integrated computational approach. Mol Phys 2013. [DOI: 10.1080/00268976.2013.796413] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Franco Egidi
- a Scuola Normale Superiore , Piazza dei Cavalieri , Pisa , Italy
| | - Julien Bloino
- a Scuola Normale Superiore , Piazza dei Cavalieri , Pisa , Italy
- b CNR, Consiglio Nazionale delle Ricerche , Istituto di Chimica dei Composti Organometallici , UOS di Pisa, Via G. Moruzzi, Pisa , Italy
| | - Chiara Cappelli
- a Scuola Normale Superiore , Piazza dei Cavalieri , Pisa , Italy
- c Dipartimento di Chimica e Chimica Industriale , Università di Pisa , via Risorgimento, Pisa , Italy
| | - Vincenzo Barone
- a Scuola Normale Superiore , Piazza dei Cavalieri , Pisa , Italy
| | - Jacopo Tomasi
- c Dipartimento di Chimica e Chimica Industriale , Università di Pisa , via Risorgimento, Pisa , Italy
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265
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Barone V, Biczysko M, Bloino J, Puzzarini C. Accurate structure, thermodynamic and spectroscopic parameters from CC and CC/DFT schemes: the challenge of the conformational equilibrium in glycine. Phys Chem Chem Phys 2013; 15:10094-111. [PMID: 23599122 DOI: 10.1039/c3cp50439e] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The structures, relative stabilities, and infrared spectra of the six low-energy conformers of glycine have been characterized using a state-of-the-art quantum-mechanical approach allowing the bond distances, conformational enthalpies and vibrational frequencies to be determined well within the chemical accuracy. Transition state structures governing interconversion among the different energy minima have also been characterized. In detail, the gas-phase thermodynamic properties (at 15 K and 410 K) of the glycine conformers considered have been obtained with a 1 kJ mol(-1) accuracy, and it has been shown that the employment of DFT geometries usually reduces such accuracy by at most 0.1 kJ mol(-1). Regarding molecular structures, the use of two different composite schemes allowed us to further confirm the suitability of a rather cost-effective approach and provide geometrical parameters with an overall accuracy better than 0.002 Å for distances and 1 degree for angles. Thanks to a hybrid CC/DFT approach, the infrared spectra of all conformers considered and of several deuterated isotopologues have been reproduced (when experimental data were available) or predicted with an accuracy of 10 cm(-1). Finally, the joint thermodynamic and spectroscopic investigation allowed us to shed some light on the possible observation of elusive conformers. On the whole, the high accuracy of the computational results allows us to draw a fully consistent interpretation of the available experimental data and to obtain a more complete characterization of the potential energy surface of glycine.
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Affiliation(s)
- Vincenzo Barone
- Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56126 Pisa, Italy.
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266
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Krasnoshchekov SV, Craig NC, Stepanov NF. Anharmonic Vibrational Analysis of the Gas-Phase Infrared Spectrum of 1,1-Difluoroethylene Using the Operator Van Vleck Canonical Perturbation Theory. J Phys Chem A 2013; 117:3041-56. [DOI: 10.1021/jp311398z] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Norman C. Craig
- Department of Chemistry
and Biochemistry, Oberlin College, Oberlin, Ohio 44074, United States
| | - Nikolay F. Stepanov
- Lomonosov Moscow State University, Leninskiye Gory, 119991 Moscow, Russian
Federation
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267
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Barone V, Biczysko M, Bloino J, Puzzarini C. Characterization of the Elusive Conformers of Glycine from State-of-the-Art Structural, Thermodynamic, and Spectroscopic Computations: Theory Complements Experiment. J Chem Theory Comput 2013; 9:1533-47. [DOI: 10.1021/ct3010672] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Vincenzo Barone
- Scuola Normale Superiore, Piazza
dei Cavalieri 7, I-56126 Pisa, Italy
| | - Malgorzata Biczysko
- Center for Nanotechnology Innovation
@NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12, I-56127
Pisa, Italy
| | - Julien Bloino
- Scuola Normale Superiore, Piazza
dei Cavalieri 7, I-56126 Pisa, Italy
- Consiglio Nazionale
delle Ricerche,
Istituto di Chimica dei Composti OrganoMetallici (ICCOM-CNR), UOS
di Pisa, Area della Ricerca CNR, Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Cristina Puzzarini
- Dipartimento di Chimica “G.
Ciamician,” Università di Bologna, Via F. Selmi 2, 40126
Bologna, Italy
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268
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Cappelli C, Bloino J, Lipparini F, Barone V. Toward Ab Initio Anharmonic Vibrational Circular Dichroism Spectra in the Condensed Phase. J Phys Chem Lett 2012; 3:1766-1773. [PMID: 26291857 DOI: 10.1021/jz3006139] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The first implementation and calculation of anharmonic VCD rotational strengths for solvated systems is reported. Our approach, rooted in the polarizable continuum model (PCM) and in the second-order vibrational perturbation theory (VPT2), permits not only correction for anharmonicity in the signals associated with fundamental transitions but also calculation of rotational strengths of overtones and combination bands. This allows for a more physically consistent comparison between experiment and calculations together with the analysis of spectral regions dominated by anharmonic effects. The developed model is applied to a few test cases, and the computational outcomes are directly compared with experimental data.
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Affiliation(s)
- Chiara Cappelli
- †Scuola Normale Superiore, Piazza dei Cavalieri, 7 I-56126 Pisa, Italy
- ‡Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento, 35 I-56126 Pisa, Italy
| | - Julien Bloino
- †Scuola Normale Superiore, Piazza dei Cavalieri, 7 I-56126 Pisa, Italy
- ¶CNR, Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti Organometallici, UOS di Pisa, Via G. Moruzzi, 1 I-56124 Pisa, Italy
| | - Filippo Lipparini
- †Scuola Normale Superiore, Piazza dei Cavalieri, 7 I-56126 Pisa, Italy
| | - Vincenzo Barone
- †Scuola Normale Superiore, Piazza dei Cavalieri, 7 I-56126 Pisa, Italy
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269
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Barone V, Baiardi A, Biczysko M, Bloino J, Cappelli C, Lipparini F. Implementation and validation of a multi-purpose virtual spectrometer for large systems in complex environments. Phys Chem Chem Phys 2012; 14:12404-22. [DOI: 10.1039/c2cp41006k] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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