401
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Nénon S, Champagne B. SCC-DFTB calculation of the static first hyperpolarizability: from gas phase molecules to functionalized surfaces. J Chem Phys 2014; 138:204107. [PMID: 23742454 DOI: 10.1063/1.4806259] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The performance of the self-consistent charge density functional tight binding (SCC-DFTB) method for calculating the first hyperpolarizability of π-conjugated compounds has been assessed with respect to results obtained with high-level ab initio methods and density functional theory (DFT). The SCC-DFTB method performs similarly or better than DFT with the PBE XC functional. Thus, if for small π-conjugated linkers SCC-DFTB can reproduce trends, for longer chains the first hyperpolarizabilities are overestimated. In the case of push-pull thiophenes, the β values are strongly overestimated, as it is also the case with the B3LYP and PBE XC functionals. On the other hand, the SCC-DFTB method closely reproduces the evolution of β in p-disubstituted benzenes as a function of the donor and acceptor groups, as estimated at the MP2 level. The reliability of SCC-DFTB to determine the bond length alternation and the dihedral angles between the aromatic rings has also been tackled, demonstrating that both are underestimated. Overall, the SCC-DFTB calculations are of the same quality as those performed with the conventional PBE XC functional on which the method was parameterized but the SCC-DFTB calculations are computationally very little demanding, and it can therefore be adopted for very large systems for screening nonlinear optical materials as well as for assessing structure-property relationships. This is illustrated with an application on the first hyperpolarizability of an indolino-oxazolidine molecular switch grafted on a SiO2 surface. This has enabled to pinpoint (i) the effect of the surface on the donor/acceptor character of the linking substituent, (ii) the impact of molecular orientation, (iii) the role of a spacer between the π-conjugated switch and the surface, (iv) the global effect of the surface on the β contrast, and also (v) the fact that the molecular switches can maintain this contrast when adsorbed.
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Affiliation(s)
- Sébastien Nénon
- Laboratoire de Chimie Théorique, University of Namur, rue de Bruxelles, 61, B5000 Namur, Belgium.
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402
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Sabirov DS, Terentyev AO, Bulgakov RG. Polarizability of fullerene [2+2]-dimers: a DFT study. Phys Chem Chem Phys 2014; 16:14594-600. [DOI: 10.1039/c3cp55528c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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403
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Della Valle F, Ejlli A, Gastaldi U, Messineo G, Milotti E, Pengo R, Piemontese L, Ruoso G, Zavattini G. Measurement of the Cotton Mouton effect of water vapour. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2013.12.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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404
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Zhang C, Patschinski P, Stephenson DS, Panisch R, Wender JH, Holthausen MC, Zipse H. The calculation of 29Si NMR chemical shifts of tetracoordinated silicon compounds in the gas phase and in solution. Phys Chem Chem Phys 2014; 16:16642-50. [DOI: 10.1039/c4cp01736f] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
29Si NMR chemical shifts have been calculated for a variety of silicon-based species relevant in organic synthesis.
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Affiliation(s)
- Cong Zhang
- Department of Chemistry
- LMU München
- D-81377 München, Germany
| | | | | | - Robin Panisch
- Institute of Inorganic Chemistry
- Goethe University
- 60438 Frankfurt am Main, Germany
| | | | - Max C. Holthausen
- Institute of Inorganic Chemistry
- Goethe University
- 60438 Frankfurt am Main, Germany
| | - Hendrik Zipse
- Department of Chemistry
- LMU München
- D-81377 München, Germany
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405
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Alam MM, Chattopadhyaya M, Chakrabarti S, Rizzo A. On the origin of the very strong two-photon activity of squaraine dyes – a standard/damped response theory study. Phys Chem Chem Phys 2014; 16:8030-5. [DOI: 10.1039/c3cp55485f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
In the present work, we report the mechanism of a very large increase in the two-photon (TP) activity of squaraine based molecules upon changing the substituents.
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Affiliation(s)
- Md. Mehboob Alam
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009, India
| | | | | | - Antonio Rizzo
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR)
- Area della Ricerca
- I-56124 Pisa, Italy
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406
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Jaszuński M, Repisky M, Demissie TB, Komorovsky S, Malkin E, Ruud K, Garbacz P, Jackowski K, Makulski W. Spin-rotation and NMR shielding constants in HCl. J Chem Phys 2013; 139:234302. [DOI: 10.1063/1.4840295] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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407
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Reta Mañeru D, Pal AK, Moreira IDPR, Datta SN, Illas F. The Triplet–Singlet Gap in the m-Xylylene Radical: A Not So Simple One. J Chem Theory Comput 2013; 10:335-45. [DOI: 10.1021/ct400883m] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Daniel Reta Mañeru
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, E-08028 Barcelona, Spain
| | - Arun K. Pal
- Department
of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai 400076, India
| | - Ibério de P. R. Moreira
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, E-08028 Barcelona, Spain
| | - Sambhu N. Datta
- Department
of Chemistry, Indian Institute of Technology, Bombay, Powai, Mumbai 400076, India
| | - Francesc Illas
- Departament de Química Física & Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, C/Martí i Franquès 1, E-08028 Barcelona, Spain
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408
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Kauczor J, Norman P, Christiansen O, Coriani S. Communication: A reduced-space algorithm for the solution of the complex linear response equations used in coupled cluster damped response theory. J Chem Phys 2013; 139:211102. [DOI: 10.1063/1.4840275] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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409
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Varkey EC, Hutter J, Limacher PA, Lüthi HP. Impact of Donor–Acceptor Functionalization on the Properties of Linearly π-Conjugated Oligomers: Establishing Quantitative Relationships for the Substituent and Substituent Cooperative Effect Based on Quantum Chemical Calculations. J Org Chem 2013; 78:12681-9. [DOI: 10.1021/jo4022869] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Elizabeth C. Varkey
- Laboratory
of Physical Chemistry, ETH Zurich, Zurich CH8093, Switzerland
- Institute
of Physical Chemistry, University of Zurich, Zurich CH8057, Switzerland
| | - Jürg Hutter
- Institute
of Physical Chemistry, University of Zurich, Zurich CH8057, Switzerland
| | - Peter A. Limacher
- Department of Chemistry & Chemical Biology, McMaster University, Hamilton, Ontario L8S 4L8, Canada
| | - Hans P. Lüthi
- Laboratory
of Physical Chemistry, ETH Zurich, Zurich CH8093, Switzerland
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410
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Sun C, Liu J, Liang W, Zhao Y. Theoretical Insights into Intermolecular Hydrogen‐Bonding Strengthening in Fluorenone‐Methanol Complexes Induced by Electronic Excitation and Bulk Solvent Effect. CHINESE J CHEM PHYS 2013. [DOI: 10.1063/1674-0068/26/06/617-626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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411
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Esrafili MD, Yourdkhani S, Bahrami A. Characteristics and nature of the halogen-bonding interactions between CCl3F and ozone: a supermolecular and SAPT study. Mol Phys 2013. [DOI: 10.1080/00268976.2013.788740] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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412
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Prediction of the emission wavelengths of metal-organic triplet emitters by quantum chemical calculations. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.07.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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413
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Silverstein DW, Govind N, van Dam HJJ, Jensen L. Simulating One-Photon Absorption and Resonance Raman Scattering Spectra Using Analytical Excited State Energy Gradients within Time-Dependent Density Functional Theory. J Chem Theory Comput 2013; 9:5490-503. [DOI: 10.1021/ct4007772] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel W. Silverstein
- Department
of Chemistry, The Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802, United States
| | - Niranjan Govind
- William
R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
| | - Hubertus J. J. van Dam
- William
R. Wiley Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
| | - Lasse Jensen
- Department
of Chemistry, The Pennsylvania State University, 104 Chemistry Building, University Park, Pennsylvania 16802, United States
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414
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Sauer SP, Haq IU, Sabin JR, Oddershede J, Christiansen O, Coriani S. Coupled cluster calculations of mean excitation energies of the noble gas atoms He, Ne and Ar and of the H2molecule. Mol Phys 2013. [DOI: 10.1080/00268976.2013.858192] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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415
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Hubert M, Olsen J, Loras J, Fleig T. General active space commutator-based coupled cluster theory of general excitation rank for electronically excited states: Implementation and application to ScH. J Chem Phys 2013; 139:194106. [DOI: 10.1063/1.4827638] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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416
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Castet F, Rodriguez V, Pozzo JL, Ducasse L, Plaquet A, Champagne B. Design and characterization of molecular nonlinear optical switches. Acc Chem Res 2013; 46:2656-65. [PMID: 23865890 DOI: 10.1021/ar4000955] [Citation(s) in RCA: 202] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Nanoscale structures, including molecules, supramolecules, polymers, functionalized surfaces, and crystalline/amorphous solids, can commute between two or more forms, displaying contrasts in their nonlinear optical (NLO) properties. Because of this property, they have high potential for applications in data storage, signal processing, and sensing. As potential candidates for integration into responsive materials, scientists have been intensely studying organic and organometallic molecules with switchable first hyperpolarizability over the past two decades. As a result of this, researchers have been able to synthesize and characterize several families of molecular NLO switches that differ by the stimulus used to trigger the commutation. These stimuli can include light irradiation, pH variation, redox reaction, and ion recognition, among others. The design of multistate (including several switchable units) and multifunctional (triggered with different stimuli) systems has also motivated a large amount of work, aiming at the improvement of the storage capacity of optical memories or the diversification of the addressability of the devices. In complement to the synthesis of the compounds and the characterization of their NLO responses by means of hyper-Rayleigh scattering, quantum chemical calculations play a key role in the design of molecular switches with high first hyperpolarizability contrasts. Through the latter, we can gain a fundamental understanding of the various factors governing the efficiency of the switches. These are not easily accessible experimentally, and include donor/acceptor contributions, frequency dispersion, and solvent effects. In this Account, we illustrate the similarities of the experimental and theoretical tools to design and characterize highly efficient NLO switches but also the difficulties in comparing them. After providing a critical overview of the different theoretical approaches used for evaluating the first hyperpolarizabilities, we report two case studies in which theoretical simulations have provided guidelines to design NLO switches with improved efficiencies. The first example presents the joint theoretical/experimental characterization of a new family of multi-addressable NLO switches based on benzazolo-oxazolidine derivatives. The second focuses on the photoinduced commutation in merocyanine-spiropyran systems, where the significant NLO contrast could be exploited for metal cation identification in a new generation of multiusage sensing devices. Finally, we illustrate the impact of environment on the NLO switching properties, with examples based on the keto-enol equilibrium in anil derivatives. Through these representative examples, we demonstrate that the rational design of molecular NLO switches, which combines experimental and theoretical approaches, has reached maturity. Future challenges consist in extending the investigated objects to supramolecular architectures involving several NLO-responsive units, in order to exploit their cooperative effects for enhancing the NLO responses and contrasts.
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Affiliation(s)
- Frédéric Castet
- Institut des Sciences Moléculaires (UMR 5255 CNRS), Université de Bordeaux, cours de la Libération, 351, F-33405 Talence, France
| | - Vincent Rodriguez
- Institut des Sciences Moléculaires (UMR 5255 CNRS), Université de Bordeaux, cours de la Libération, 351, F-33405 Talence, France
| | - Jean-Luc Pozzo
- Institut des Sciences Moléculaires (UMR 5255 CNRS), Université de Bordeaux, cours de la Libération, 351, F-33405 Talence, France
| | - Laurent Ducasse
- Institut des Sciences Moléculaires (UMR 5255 CNRS), Université de Bordeaux, cours de la Libération, 351, F-33405 Talence, France
| | - Aurélie Plaquet
- Laboratoire de Chimie Théorique, Unité de Chimie Physique Théorique et Structurale, University of Namur, rue de Bruxelles 61, B-5000 Namur, Belgium
| | - Benoît Champagne
- Laboratoire de Chimie Théorique, Unité de Chimie Physique Théorique et Structurale, University of Namur, rue de Bruxelles 61, B-5000 Namur, Belgium
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417
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Verma P, Perera A, Morales JA. Massively parallel implementations of coupled-cluster methods for electron spin resonance spectra. I. Isotropic hyperfine coupling tensors in large radicals. J Chem Phys 2013; 139:174103. [DOI: 10.1063/1.4827298] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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418
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Tellgren EI, Fliegl H. Non-perturbative treatment of molecules in linear magnetic fields: Calculation of anapole susceptibilities. J Chem Phys 2013; 139:164118. [DOI: 10.1063/1.4826578] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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419
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Jagau TC, Gauss J, Ruud K. Analytic evaluation of the dipole Hessian matrix in coupled-cluster theory. J Chem Phys 2013; 139:154106. [DOI: 10.1063/1.4824715] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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420
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Onchoke KK, Ojeda JJ. A DFT Study of Vibrational Spectra and Mutagenicity Predictions of Mononitrated Fluoranthenes. Polycycl Aromat Compd 2013. [DOI: 10.1080/10406638.2013.810654] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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421
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Radula-Janik K, Kupka T, Ejsmont K, Daszkiewicz Z, Sauer SPA. Halogen effect on structure and 13C NMR chemical shift of 3,6-disubstituted-N-alkyl carbazoles. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2013; 51:630-5. [PMID: 23922027 DOI: 10.1002/mrc.3992] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2013] [Revised: 07/10/2013] [Accepted: 07/10/2013] [Indexed: 05/26/2023]
Abstract
Structures of selected 3,6-dihalogeno-N-alkyl carbazole derivatives were calculated at the B3LYP/6-311++G(3df,2pd) level of theory, and their (13) C nuclear magnetic resonance (NMR) isotropic shieldings were predicted using density functional theory (DFT). The model compounds contained 9H, N-methyl and N-ethyl derivatives. The relativistic effect of Br and I atoms on nuclear shieldings was modeled using the spin-orbit zeroth-order regular approximation (ZORA) method. Significant heavy atom shielding effects for the carbon atom directly bonded with Br and I were observed (~-10 and ~-30 ppm while the other carbon shifts were practically unaffected). The decreasing electronegativity of the halogen substituent (F, Cl, Br, and I) was reflected in both nonrelativistic and relativistic NMR results as decreased values of chemical shifts of carbon atoms attached to halogen (C3 and C6) leading to a strong sensitivity to halogen atom type at 3 and 6 positions of the carbazole ring. The predicted NMR data correctly reproduce the available experimental data for unsubstituted N-alkylcarbazoles.
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Affiliation(s)
- Klaudia Radula-Janik
- Faculty of Chemistry, Opole University, 48, Oleska Street, 45-052, Opole, Poland
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422
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Comparative study of the 3-phenylcoumarin scaffold: Synthesis, X-ray structural analysis and semiempirical calculations of a selected series of compounds. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.07.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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423
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da Silva AM, Ghosh A, Chaudhuri P. Effect of Hydrogen Bond Formation on the NMR Properties of Glycine–HCN Complexes. J Phys Chem A 2013; 117:10274-85. [DOI: 10.1021/jp4056818] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arnaldo Machado da Silva
- Departamento
de Física, Universidade Federal do Amazonas, 69077-000 Manaus, AM, Brazil
- Departamento
de Física, Universidade Federal de São Carlos, São Paulo 13565-905, Brazil
| | - Angsula Ghosh
- Departamento
de Física, Universidade Federal do Amazonas, 69077-000 Manaus, AM, Brazil
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424
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Aidas K, Angeli C, Bak KL, Bakken V, Bast R, Boman L, Christiansen O, Cimiraglia R, Coriani S, Dahle P, Dalskov EK, Ekström U, Enevoldsen T, Eriksen JJ, Ettenhuber P, Fernández B, Ferrighi L, Fliegl H, Frediani L, Hald K, Halkier A, Hättig C, Heiberg H, Helgaker T, Hennum AC, Hettema H, Hjertenæs E, Høst S, Høyvik IM, Iozzi MF, Jansík B, Jensen HJA, Jonsson D, Jørgensen P, Kauczor J, Kirpekar S, Kjærgaard T, Klopper W, Knecht S, Kobayashi R, Koch H, Kongsted J, Krapp A, Kristensen K, Ligabue A, Lutnæs OB, Melo JI, Mikkelsen KV, Myhre RH, Neiss C, Nielsen CB, Norman P, Olsen J, Olsen JMH, Osted A, Packer MJ, Pawlowski F, Pedersen TB, Provasi PF, Reine S, Rinkevicius Z, Ruden TA, Ruud K, Rybkin VV, Sałek P, Samson CCM, de Merás AS, Saue T, Sauer SPA, Schimmelpfennig B, Sneskov K, Steindal AH, Sylvester-Hvid KO, Taylor PR, Teale AM, Tellgren EI, Tew DP, Thorvaldsen AJ, Thøgersen L, Vahtras O, Watson MA, Wilson DJD, Ziolkowski M, Agren H. The Dalton quantum chemistry program system. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2013; 4:269-284. [PMID: 25309629 PMCID: PMC4171759 DOI: 10.1002/wcms.1172] [Citation(s) in RCA: 874] [Impact Index Per Article: 79.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Dalton is a powerful general-purpose program system for the study of molecular electronic structure at the Hartree-Fock, Kohn-Sham, multiconfigurational self-consistent-field, Møller-Plesset, configuration-interaction, and coupled-cluster levels of theory. Apart from the total energy, a wide variety of molecular properties may be calculated using these electronic-structure models. Molecular gradients and Hessians are available for geometry optimizations, molecular dynamics, and vibrational studies, whereas magnetic resonance and optical activity can be studied in a gauge-origin-invariant manner. Frequency-dependent molecular properties can be calculated using linear, quadratic, and cubic response theory. A large number of singlet and triplet perturbation operators are available for the study of one-, two-, and three-photon processes. Environmental effects may be included using various dielectric-medium and quantum-mechanics/molecular-mechanics models. Large molecules may be studied using linear-scaling and massively parallel algorithms. Dalton is distributed at no cost from http://www.daltonprogram.org for a number of UNIX platforms.
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Affiliation(s)
- Kestutis Aidas
- Department of General Physics and Spectroscopy, Faculty of Physics, Vilnius University Vilnius, Lithuania
| | | | - Keld L Bak
- Aarhus University School of Engineering Aarhus, Denmark
| | - Vebjørn Bakken
- Faculty of Mathematics and Natural Sciences, University of Oslo Oslo, Norway
| | - Radovan Bast
- Department of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology Stockholm, Sweden
| | | | | | | | - Sonia Coriani
- Department of Chemical and Pharmaceutical Sciences, University of Trieste Trieste, Italy
| | - Pål Dahle
- Norwegian Computing Center Oslo, Norway
| | | | - Ulf Ekström
- CTCC, Department of Chemistry, University of Oslo Oslo, Norway
| | - Thomas Enevoldsen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark Odense, Denmark
| | | | | | - Berta Fernández
- Department of Physical Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela Santiago de Compostela, Spain
| | - Lara Ferrighi
- CTCC, Department of Chemistry, UiT The Arctic University of Norway, Tromsø Norway
| | - Heike Fliegl
- CTCC, Department of Chemistry, University of Oslo Oslo, Norway
| | - Luca Frediani
- CTCC, Department of Chemistry, UiT The Arctic University of Norway, Tromsø Norway
| | | | | | - Christof Hättig
- Department of Theoretical Chemistry, Ruhr-University Bochum Bochum, Germany
| | | | - Trygve Helgaker
- CTCC, Department of Chemistry, University of Oslo Oslo, Norway
| | | | - Hinne Hettema
- Department of Philosophy, The University of Auckland Auckland, New Zealand
| | - Eirik Hjertenæs
- Department of Chemistry, Norwegian University of Science and Technology Trondheim, Norway
| | - Stinne Høst
- Department of Geoscience, Aarhus University Aarhus, Denmark
| | | | | | | | - Hans Jørgen Aa Jensen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark Odense, Denmark
| | - Dan Jonsson
- High-Performance Computing Group, UiT The Arctic University of Norway, Tromsø Norway
| | - Poul Jørgensen
- Department of Chemistry, Aarhus University Aarhus, Denmark
| | - Joanna Kauczor
- Department of Physics, Chemistry and Biology, Linköping University Linköping, Sweden
| | | | | | - Wim Klopper
- Institute of Physical Chemistry, Karlsruhe Institute of Technology Karlsruhe, Germany
| | - Stefan Knecht
- Laboratory of Physical Chemistry, ETH Zürich Zürich, Switzerland
| | - Rika Kobayashi
- Australian National University Supercomputer Facility Canberra, Australia
| | - Henrik Koch
- Department of Chemistry, Norwegian University of Science and Technology Trondheim, Norway
| | - Jacob Kongsted
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark Odense, Denmark
| | | | | | - Andrea Ligabue
- Computer Services: Networks and Systems, University of Modena and Reggio Emilia Modena, Italy
| | | | - Juan I Melo
- Physics Department, FCEyN-UBA and IFIBA-CONICET, Universidad de Buenos Aires Buenos Aires, Argentina
| | - Kurt V Mikkelsen
- Department of Chemistry, University of Copenhagen, Copenhagen Denmark
| | - Rolf H Myhre
- Department of Chemistry, Norwegian University of Science and Technology Trondheim, Norway
| | - Christian Neiss
- Department of Chemistry and Pharmacy, Friedrich-Alexander University Erlangen-Nürnberg Erlangen, Germany
| | | | - Patrick Norman
- Department of Physics, Chemistry and Biology, Linköping University Linköping, Sweden
| | - Jeppe Olsen
- Department of Chemistry, Aarhus University Aarhus, Denmark
| | - Jógvan Magnus H Olsen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark Odense, Denmark
| | | | - Martin J Packer
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark Odense, Denmark
| | - Filip Pawlowski
- Institute of Physics, Kazimierz Wielki University Bydgoszcz, Poland
| | | | - Patricio F Provasi
- Department of Physics, University of Northeastern and IMIT-CONICET Corrientes, Argentina
| | - Simen Reine
- CTCC, Department of Chemistry, University of Oslo Oslo, Norway
| | - Zilvinas Rinkevicius
- Department of Theoretical Chemistry and Biology, School of Biotechnology and Swedish e-Science Research Center (SeRC), KTH Royal Institute of Technology Stockholm, Sweden
| | | | - Kenneth Ruud
- CTCC, Department of Chemistry, UiT The Arctic University of Norway, Tromsø Norway
| | - Vladimir V Rybkin
- Institute of Physical Chemistry, Karlsruhe Institute of Technology Karlsruhe, Germany
| | | | - Claire C M Samson
- Institute of Physical Chemistry, Karlsruhe Institute of Technology Karlsruhe, Germany
| | | | - Trond Saue
- Paul Sabatier University Toulouse, France
| | - Stephan P A Sauer
- Department of Chemistry, University of Copenhagen, Copenhagen Denmark
| | - Bernd Schimmelpfennig
- Institute for Nuclear Waste Disposal, Karlsruhe Institute of Technology Karlsruhe, Germany
| | | | - Arnfinn H Steindal
- CTCC, Department of Chemistry, UiT The Arctic University of Norway, Tromsø Norway
| | | | - Peter R Taylor
- VLSCI and School of Chemistry, University of Melbourne Parkville, Australia
| | - Andrew M Teale
- School of Chemistry, University of Nottingham Nottingham, UK
| | - Erik I Tellgren
- CTCC, Department of Chemistry, University of Oslo Oslo, Norway
| | - David P Tew
- School of Chemistry, University of Bristol Bristol, UK
| | | | | | - Olav Vahtras
- Department of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology Stockholm, Sweden
| | - Mark A Watson
- Department of Chemistry, Princeton University Princeton, New Jersey
| | - David J D Wilson
- Department of Chemistry and La Trobe Institute for Molecular Sciences, La Trobe University Melbourne, Australia
| | - Marcin Ziolkowski
- CoE for Next Generation Computing, Clemson University Clemson, South Carolina
| | - Hans Agren
- Department of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology Stockholm, Sweden
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425
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Cukras J, Coriani S, Decleva P, Christiansen O, Norman P. Photoionization cross section by Stieltjes imaging applied to coupled cluster Lanczos pseudo-spectra. J Chem Phys 2013; 139:094103. [DOI: 10.1063/1.4819126] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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426
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Rusakov YY, Krivdin LB. One-bond 29Si-1H spin-spin coupling constants in the series of halosilanes: benchmark SOPPA and DFT calculations, relativistic effects, and vibrational corrections. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2013; 51:557-561. [PMID: 23836682 DOI: 10.1002/mrc.3986] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 06/02/2013] [Accepted: 06/10/2013] [Indexed: 06/02/2023]
Abstract
A number of most representative second order polarization propagator approach (SOPPA) based wavefunction methods, SOPPA, SOPPA(CC2) and SOPPA(CCSD), and density functional theory (DFT) based methods, B3LYP, PBE0, KT2, and KT3, have been benchmarked in the calculation of the one-bond (29)Si-(1)H spin-spin coupling constants in the series of halosilanes SiH(n)X(4-n) (X = F, Cl, Br, I), both at the non-relativistic and full four-parameter Dirac's relativistic levels taking into account vibrational corrections. At the non-relativistic level, the wavefunction methods showed much better results as compared with those of DFT. At the DFT level, out of four tested functionals, the Perdew, Burke, and Ernzerhof's PBE0 showed best performance. Taking into account, relativistic effects and vibrational corrections noticeably improves wavefunction methods results, but generally worsens DFT results.
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Affiliation(s)
- Yury Yu Rusakov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, Favorsky St. 1, 664033 Irkutsk, Russia
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427
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Kupka T, Stachów M, Kaminsky J, Sauer SPA. Estimation of isotropic nuclear magnetic shieldings in the CCSD(T) and MP2 complete basis set limit using affordable correlation calculations. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2013; 51:482-489. [PMID: 23749459 DOI: 10.1002/mrc.3974] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 05/12/2013] [Accepted: 05/14/2013] [Indexed: 06/02/2023]
Abstract
A linear correlation between isotropic nuclear magnetic shielding constants for seven model molecules (CH2 O, H2 O, HF, F2 , HCN, SiH4 and H2 S) calculated with 37 methods (34 density functionals, RHF, MP2 and CCSD(T)), with affordable pcS-2 basis set and corresponding complete basis set results, estimated from calculations with the family of polarization-consistent pcS-n basis sets is reported. This dependence was also supported by inspection of profiles of deviation between CBS estimated nuclear shieldings and shieldings obtained with the significantly smaller basis sets pcS-2 and aug-cc-pVTZ-J for the selected set of 37 calculation methods. It was possible to formulate a practical approach of estimating the values of isotropic nuclear magnetic shielding constants at the CCSD(T)/CBS and MP2/CBS levels from affordable CCSD(T)/pcS-2, MP2/pcS-2 and DFT/CBS calculations with pcS-n basis sets. The proposed method leads to a fairly accurate estimation of nuclear magnetic shieldings and considerable saving of computational efforts.
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Affiliation(s)
- Teobald Kupka
- University of Opole, Faculty of Chemistry, 45-052 Opole, Poland.
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428
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Rob F, Szalewicz K. Distributed molecular polarisabilities and asymptotic intermolecular interaction energies†. Mol Phys 2013. [DOI: 10.1080/00268976.2013.808770] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Fazle Rob
- a Department of Physics and Astronomy , University of Delaware , Newark , DE , 19716 , USA
| | - Krzysztof Szalewicz
- a Department of Physics and Astronomy , University of Delaware , Newark , DE , 19716 , USA
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429
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Nygaard CR, Olsen J. The energy, orbitals and electric properties of the ozone molecule with ensemble density functional theory. Mol Phys 2013. [DOI: 10.1080/00268976.2013.810792] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Jeppe Olsen
- a Department of Chemistry , Aarhus University , Aarhus C , Denmark
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430
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Affiliation(s)
- Simen Kvaal
- a CTCC , Institutt for Kjemi, Unversitetet i OSlo , NO-0315 Oslo, Oslo , Norway
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431
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Demissie TB, Repisky M, Komorovsky S, Isaksson J, Svendsen JS, Dodziuk H, Ruud K. Four-component relativistic chemical shift calculations of halogenated organic compounds. J PHYS ORG CHEM 2013. [DOI: 10.1002/poc.3157] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Taye B. Demissie
- Institute of Physical Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 Warsaw Poland
- Centre for Theoretical and Computational Chemistry, Department of Chemistry; University of Tromsø; N-9037 Tromsø Norway
| | - Michal Repisky
- Centre for Theoretical and Computational Chemistry, Department of Chemistry; University of Tromsø; N-9037 Tromsø Norway
| | - Stanislav Komorovsky
- Centre for Theoretical and Computational Chemistry, Department of Chemistry; University of Tromsø; N-9037 Tromsø Norway
| | - Johan Isaksson
- Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT); University of Tromsø; N-9037 Tromsø Norway
| | - John S. Svendsen
- Centre for Research-based Innovation on Marine Bioactivities and Drug Discovery (MABCENT); University of Tromsø; N-9037 Tromsø Norway
| | - Helena Dodziuk
- Institute of Physical Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 Warsaw Poland
| | - Kenneth Ruud
- Centre for Theoretical and Computational Chemistry, Department of Chemistry; University of Tromsø; N-9037 Tromsø Norway
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432
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Theory and algorithms for the excited states of large molecules and molecular aggregates. Sci China Chem 2013. [DOI: 10.1007/s11426-013-4907-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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433
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Sun H, Autschbach J. Influence of the Delocalization Error and Applicability of Optimal Functional Tuning in Density Functional Calculations of Nonlinear Optical Properties of Organic Donor-Acceptor Chromophores. Chemphyschem 2013; 14:2450-61. [DOI: 10.1002/cphc.201300256] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 04/20/2013] [Indexed: 11/06/2022]
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434
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Synthesis, NMR characterization, X-ray structural analysis and theoretical calculations of amide and ester derivatives of the coumarin scaffold. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.03.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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435
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Zhang Y, Castet F, Champagne B. Theoretical investigation of the first hyperpolarizability redox-switching in a ruthenium complex. Chem Phys Lett 2013. [DOI: 10.1016/j.cplett.2013.04.071] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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436
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Affiliation(s)
- Rolf Heilemann Myhre
- a Department of Chemistry , Norwegian University of Science and Technology , Trondheim , 7491 , Norway
| | | | - Henrik Koch
- a Department of Chemistry , Norwegian University of Science and Technology , Trondheim , 7491 , Norway
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437
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Affiliation(s)
- Michał Jaszuński
- a Institute of Organic Chemistry , Polish Academy of Sciences , Warszawa , 01-224 , Kasprzaka 44, Poland
| | - Małgorzata Olejniczak
- b Faculty of Chemistry , University of Warsaw , Pasteura 1, Laboratoire de Chimie et Physique Quantiques (UMR 5626), CNRS and Université de Toulouse 3 (Paul Sabatier), 118 Route de Narbonne, F-31062 Toulouse, France, Warsaw , 02-093 , Poland
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438
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Pathak S, Bast R, Ruud K. Multiconfigurational Self-Consistent Field Calculations of the Magnetically Induced Current Density Using Gauge-Including Atomic Orbitals. J Chem Theory Comput 2013; 9:2189-98. [PMID: 26583713 DOI: 10.1021/ct3011198] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nondynamical electron correlation based on a genuine multiconfigurational theory is of considerable importance for a balanced ab initio calculation of aromatic and antiaromatic molecules either with open-shell character or quasi-degeneracy in the electronic states. Among the various aromaticity indices, the calculation of magnetically induced ring current densities (MICD) has emerged as a strong contender, providing both a qualitative and a quantitative description of the effect. We report here the first implementation of MICD at the multiconfigurational self-consistent field (MCSCF) level of theory together with example calculations. This extension makes the method applicable to systems that cannot be appropriately handled with earlier implementations based on a single-reference starting function. We present the formulation of the MCSCF MICD theory along with applications to a prototypical antiaromatic (cyclobutadiene) and an aromatic (benzyne) system, both systems that require a multiconfigurational description. We compare the MCSCF results to those obtained using Hartree-Fock and Kohn-Sham density functional theory and discuss the effects of static correlation on the aromaticity.
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Affiliation(s)
- Shubhrodeep Pathak
- Raman Center for Atomic, Molecular and Optical Sciences, Indian Association for the Cultivation of Science , Kolkata 700 032, India
| | - Radovan Bast
- Laboratoire de Chimie et Physique Quantiques (UMR 5626), CNRS/Université de Toulouse 3 (Paul Sabatier) , 118 route de Narbonne, F-31062 Toulouse, France
| | - Kenneth Ruud
- Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Tromsø , N-9037 Tromsø, Norway
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439
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Mohammed AAK, Limacher PA, Champagne B. Finding optimal finite field strengths allowing for a maximum of precision in the calculation of polarizabilities and hyperpolarizabilities. J Comput Chem 2013; 34:1497-507. [DOI: 10.1002/jcc.23285] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2012] [Revised: 02/25/2013] [Accepted: 03/04/2013] [Indexed: 01/21/2023]
Affiliation(s)
- Ahmed A. K. Mohammed
- Department of Chemistry; McMaster University; Hamilton; Ontario; L8S 4M1; Canada
| | - Peter A. Limacher
- Laboratoire de Chimie Théorique; University of Namur; Rue de Bruxelles, 61; B-5000; Namur; Belgium
| | - Benoît Champagne
- Laboratoire de Chimie Théorique; University of Namur; Rue de Bruxelles, 61; B-5000; Namur; Belgium
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440
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Rusakov YY, Krivdin LB. Modern quantum chemical methods for calculating spin–spin coupling constants: theoretical basis and structural applications in chemistry. RUSSIAN CHEMICAL REVIEWS 2013. [DOI: 10.1070/rc2013v082n02abeh004350] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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441
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Lin N, Solheim H, Zhao X, Santoro F, Ruud K. First Principles Studies of the Vibrationally Resolved Magnetic Circular Dichroism Spectra of Biphenylene. J Chem Theory Comput 2013; 9:1557-67. [DOI: 10.1021/ct301101h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Na Lin
- State Key Laboratory of Crystal
Materials, Shandong University, 250100 Jinan, Shandong, People’s
Republic of China
- Centre
for Theoretical and Computational
Chemistry, Department of Chemistry, University of Tromsø, N-9037
Tromsø, Norway
| | - Harald Solheim
- Centre
for Theoretical and Computational
Chemistry, Department of Chemistry, University of Tromsø, N-9037
Tromsø, Norway
| | - Xian Zhao
- State Key Laboratory of Crystal
Materials, Shandong University, 250100 Jinan, Shandong, People’s
Republic of China
| | - Fabrizio Santoro
- Consiglio
Nazionale delle Ricerche—CNR,
Istituto di Chimica dei Composti Organo Metallici (ICCOM-CNR), UOS
di Pisa, Area della Ricerca, Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Kenneth Ruud
- Centre
for Theoretical and Computational
Chemistry, Department of Chemistry, University of Tromsø, N-9037
Tromsø, Norway
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442
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Malkin E, Komorovsky S, Repisky M, Demissie TB, Ruud K. The Absolute Shielding Constants of Heavy Nuclei: Resolving the Enigma of the (119)Sn Absolute Shielding. J Phys Chem Lett 2013; 4:459-463. [PMID: 26281741 DOI: 10.1021/jz302146m] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We demonstrate that the apparent disagreement between experimental determinations and four-component relativistic calculations of the absolute shielding constants of heavy nuclei is due to the breakdown of the commonly assumed relation between the electronic contribution to the nuclear spin-rotation constants and the paramagnetic contribution to the NMR shielding constants. We demonstrate that this breakdown has significant consequences for the absolute shielding constant of (119)Sn, leading to errors of about 1000 ppm. As a consequence, we expect that many absolute shielding constants of heavy nuclei will be in need of revision.
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Affiliation(s)
- Elena Malkin
- †Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Tromsø, N-9037 Tromsø, Norway
| | - Stanislav Komorovsky
- †Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Tromsø, N-9037 Tromsø, Norway
| | - Michal Repisky
- †Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Tromsø, N-9037 Tromsø, Norway
| | - Taye B Demissie
- †Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Tromsø, N-9037 Tromsø, Norway
- ‡Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Kenneth Ruud
- †Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Tromsø, N-9037 Tromsø, Norway
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443
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Kussmann J, Beer M, Ochsenfeld C. Linear-scaling self-consistent field methods for large molecules. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2013. [DOI: 10.1002/wcms.1138] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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444
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A Unified Framework for the Polarizable Embedding and Continuum Methods Within Multiconfigurational Self-consistent Field Theory. ADVANCES IN QUANTUM CHEMISTRY 2013. [DOI: 10.1016/b978-0-12-408099-7.00004-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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445
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Sato H. A modern solvation theory: quantum chemistry and statistical chemistry. Phys Chem Chem Phys 2013; 15:7450-65. [DOI: 10.1039/c3cp50247c] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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446
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Baggioli A, Crescenzi O, Field MJ, Castiglione F, Raos G. Computational 17O-NMRspectroscopy of organic acids and peracids: comparison of solvation models. Phys Chem Chem Phys 2013; 15:1130-40. [DOI: 10.1039/c2cp43021e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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447
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Toukach FV, Ananikov VP. Recent advances in computational predictions of NMR parameters for the structure elucidation of carbohydrates: methods and limitations. Chem Soc Rev 2013; 42:8376-415. [DOI: 10.1039/c3cs60073d] [Citation(s) in RCA: 91] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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448
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Lantto P, Kangasvieri S, Vaara J. Electron correlation and relativistic effects in the secondary NMR isotope shifts of CSe2. Phys Chem Chem Phys 2013; 15:17468-78. [DOI: 10.1039/c3cp51904j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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449
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Rusakova IL, Krivdin LB. Karplus dependence of spin–spin coupling constants revisited theoretically. Part 1: second-order double perturbation theory. Phys Chem Chem Phys 2013; 15:18195-203. [DOI: 10.1039/c3cp52640b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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450
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Lantto P, Kangasvieri S, Vaara J. Rovibrational effects on NMR shieldings in a heavy-element system: XeF2. J Chem Phys 2012; 137:214309. [DOI: 10.1063/1.4768471] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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