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López-Carballeira D, Polcar T. High throughput selection of organic cathode materials. J Comput Chem 2024; 45:264-273. [PMID: 37800977 DOI: 10.1002/jcc.27236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 09/12/2023] [Accepted: 09/19/2023] [Indexed: 10/07/2023]
Abstract
Efficient and affordable batteries require the design of novel organic electrode materials to overcome the drawbacks of the traditionally used inorganic materials, and the computational screening of potential candidates is a very efficient way to identify prospective solutions and minimize experimental testing. Here we present a DFT high-throughput computational screening where 86 million molecules contained in the PUBCHEM database have been analyzed and classified according to their estimated electrochemical features. The 5445 top-performing candidates were identified, and among them, 2306 are expected to have a one-electron reduction potential higher than 4 V versus (Li/Li+ ). Analogously, one-electron energy densities higher than 800 Whkg-1 have been predicted for 626 molecules. Explicit calculations performed for certain materials show that at least 69 candidates with a two-electron energy density higher than 1300 Whkg-1 . Successful molecules were sorted into several families, some of them already commonly used electrode materials, and others still experimentally untested. Most of them are small systems containing conjugated CO, NN, or NC functional groups. Our selected molecules form a valuable starting point for experimentalists exploring new materials for organic electrodes.
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Affiliation(s)
- Diego López-Carballeira
- Department of Control Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Tomáš Polcar
- Department of Control Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, Czech Republic
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2
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Sewariya S, Sehrawat H, Mishra N, Singh MB, Singh P, Kukreti S, Chandra R. Comparative assessment of 9-bromo noscapine ionic liquid and noscapine: Synthesis, in-vitro studies plus computational & biophysical evaluation with human hemoglobin. Int J Biol Macromol 2023; 247:125791. [PMID: 37442512 DOI: 10.1016/j.ijbiomac.2023.125791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/23/2023] [Accepted: 07/09/2023] [Indexed: 07/15/2023]
Abstract
Noscapine is a proficient anticancer drug active against wide variety of tumors including lung cancer. Over time, several noscapine analogues have been assessed to maximize the efficiency of the drug, amongst which 9-bromo noscapine remains one of the most potent analogues till date. In the present work, we have synthesized 9-bromo noscapine ionic liquid [9-Br-Nos]IBr2, an active pharmaceutical ingredient based ionic liquid (API-IL) to address the existing issues of solubility and targeted drug delivery in the parent alkaloid as well as the synthesized analogues. We have devised a novel two-step synthesis route (first-ever ionic to ionic bromination) to obtain the desired [9-Br-Nos]IBr2 which is advantageous to its organic analogue in terms of increased solubility, lesser reaction time and better yield. Furthermore, we have compared 9-bromo noscapine ionic liquid with noscapine based on its binding interaction with human hemoglobin (Hb) studied via computational along with spectroscopic studies, and bioactivity against non-small cell lung cancer. We inferred formation of a complex between [9-Br-Nos]IBr2 and Hb in the stoichiometric ratio of 1:1, similar to noscapine. At 298 K, [9-Br-Nos]IBr2-Hb binding was found to exhibit Kb and ∆G of 36,307 M-1 and -11.5 KJmol-1, respectively, as compared to 159 M-1 and -12.5 KJmol-1 during Noscapine-Hb binding. This indicates a more stronger and viable interaction between [9-Br-Nos]IBr2 and Hb than the parent compound. From computational studies, the observed higher stability of [9-Br-Nos]I and better binding affinity with Hb with a binding energy of -91.75 kcalmol-1 supported the experimental observations. In the same light, novel [9-Br-Nos]IBr2 was found to exhibit an IC50 = 95.02 ± 6.32 μM compared to IC50 = 128.82 ± 2.87 μM for noscapine on A549 (non-small lung cancer) cell line at 48 h. Also, the desired ionic liquid proved to be more cytotoxic inducing a mortality rate of 87 % relative to 66 % evoked by noscapine at concentrations of 200 μM after 72 h.
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Affiliation(s)
- Shubham Sewariya
- Department of Chemistry, University of Delhi, Delhi 110007, India; Maharaja Surajmal Brij University, Rajasthan - 321201, India
| | - Hitesh Sehrawat
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Nistha Mishra
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Madhur Babu Singh
- Atma Ram Sanatan Dharma College, University of Delhi, Delhi 110007, India
| | - Prashant Singh
- Atma Ram Sanatan Dharma College, University of Delhi, Delhi 110007, India
| | - Shrikant Kukreti
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Ramesh Chandra
- Department of Chemistry, University of Delhi, Delhi 110007, India; Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi 110007, India; Institute of Nano Medical Sciences, University of Delhi, Delhi 110007, India; Maharaja Surajmal Brij University, Rajasthan - 321201, India.
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Lehtola S, Karttunen AJ. Free and open source software for computational chemistry education. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2022. [DOI: 10.1002/wcms.1610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Susi Lehtola
- Molecular Sciences Software Institute Blacksburg Virginia USA
| | - Antti J. Karttunen
- Department of Chemistry and Materials Science Aalto University Espoo Finland
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Probing the Structural, Electronic and Adsorptive Properties of $${{\text{V}}_{\text{n}}}{{{\text{O}}}^{-}}\boldsymbol{ }\text{(n}$$ = 10–15) Clusters. J CLUST SCI 2022. [DOI: 10.1007/s10876-022-02267-w] [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]
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López-Carballeira D, Polcar T. A new protocol for the identification of singlet fission sensitizers through computational screening. J Comput Chem 2021; 42:2241-2249. [PMID: 34590727 DOI: 10.1002/jcc.26753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/10/2021] [Accepted: 09/15/2021] [Indexed: 11/11/2022]
Abstract
Although singlet fission presents deep advantages or the generation of solar energy, the list of efficient singlet fission sensitizers is still very short, encouraging the theoreticians to focus their efforts on selecting and designing new candidates. Here, it is presented a computational protocol for the efficient screening of databases to select those species matching the energy requirements for singlet fission. Hence, out of the initial 29,123 species, 254 molecules (0.87%) were found to match singlet fission energy conditions. The consideration of practical concerns such as availability or stability reduced the number to just 24 (0.08%), among which the aminoanthraquinone derivatives are found particularly promising. The proposed protocol correct the deficiencies of the preceding ones, reaching DFT accuracy and minimizing the risk of getting false negatives especially at the early stages of the screening. In addition, this protocol can be used in future high-throughput investigations using datasets composed of millions of species.
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Affiliation(s)
- Diego López-Carballeira
- Department of Control Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, Czech Republic
| | - Tomáš Polcar
- Department of Control Engineering, Faculty of Electrical Engineering, Czech Technical University in Prague, Prague, Czech Republic
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Zalloum WA, Zalloum N. Comparative QM/MM Molecular Dynamics and Umbrella Sampling Simulations: Interaction of the Zinc-Bound Intermediate Gem-Diolate Trapoxin A Inhibitor and Acetyl-l-lysine Substrate with Histone Deacetylase 8. J Phys Chem B 2021; 125:5321-5337. [PMID: 33998791 DOI: 10.1021/acs.jpcb.1c01696] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Targeting the genetic material without destruction is a priority to develop safe anticancer drugs. Histone deacetylase 8 (HDAC8), which is proved to be involved in carcinogenesis, is an enzyme associated with the chromatin for post-translational deacetylation of acetylated lysine. In this study, HDAC8 co-crystallized with the intermediate state tetrapeptide Trapoxin A (TA) inhibitor and the holoenzyme are utilized to find their conformational ensembles. Furthermore, the co-crystallized intermediate gem-diolate TA was used to find optimum interactions with the active site residues by conventional molecular dynamics (MD) simulation and QM/MM umbrella sampling. Finally, the intermediate state of the acetyl-l-lysine substrate was explored by QM/MM steered MD and compared to the binding of the intermediate state of the inhibitor. This research showed that HDAC8 is flexible and exists in conformational ensembles in its holoenzyme state. Binding of the intermediate state TA stabilizes its conformation. The optimum binding to the active site of HDAC8 for structures of gem-diolate TA (intermediate state) and acetyl-l-lysine (intermediate state) was determined according to the corresponding energy profiles. The use of these models will aid in the design of potentially reversible, potent, and selective inhibitors of HDAC8 for cancer treatment.
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Affiliation(s)
- Waleed A Zalloum
- Department of Pharmacy, Faculty of Health Science, American University of Madaba, P.O. Box 2882, Amman 11821, Jordan
| | - Needa Zalloum
- Department of Biopharmaceutics and Clinical Pharmacy, Faculty of Pharmacy, University of Jordan, Amman 11942, Jordan
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Head-Marsden K, Mazziotti DA. Active-Space Pair Two-Electron Reduced Density Matrix Theory for Strong Correlation. J Phys Chem A 2020; 124:4848-4854. [DOI: 10.1021/acs.jpca.0c01937] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kade Head-Marsden
- Department of Chemistry and The James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
| | - David A. Mazziotti
- Department of Chemistry and The James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
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Kapusta K, Voronkov E, Okovytyy S, Korobov V, Leszczynski J. Reconstruction of STO-3G Family Basis Set for the Accurate Calculation of Magnetic Properties. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024418130174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mourad KA, Abdulal SN, Korek M. Electronic structure, rovibrational, and dipole moment calculations for the AsCl molecule. J Mol Model 2016; 22:45. [PMID: 26815032 DOI: 10.1007/s00894-016-2908-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 01/07/2016] [Indexed: 12/01/2022]
Abstract
The potential energy curves of the 19 lowest-lying singlet and triplet electronic states in the (2S+1)Λ((+/-)) representation of the AsCl molecule have been investigated using the complete active space self-consistent field (CASSCF) with multireference configuration interaction (MRCI+Q) method including single and double excitations and with the Davidson correction. The harmonic frequency ω e, the internuclear distance R e, the dipole moment, and the electronic energy with respect to the ground state T e were calculated for the electronic states considered. By using the canonical functions approach, the eigenvalue E v, the rotational constant B v, and the abscissae of the turning points R min and R max were calculated for the electronic states up to the vibrational level v = 60. The values obtained in the present work agree well with corresponding values available in the literature for several electronic states. Fifteen new electronic states were investigated here for the first time.
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Affiliation(s)
- Khaled A Mourad
- Faculty of Science, Beirut Arab University, P.O. Box 11-5020, Riad El Solh, Beirut, 1107 2809, Lebanon
| | - Saleh N Abdulal
- Physics Department, Lebanese International University, Beirut, Lebanon
| | - Mahmoud Korek
- Faculty of Science, Beirut Arab University, P.O. Box 11-5020, Riad El Solh, Beirut, 1107 2809, Lebanon.
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Dhoke GV, Davari MD, Schwaneberg U, Bocola M. QM/MM Calculations Revealing the Resting and Catalytic States in Zinc-Dependent Medium-Chain Dehydrogenases/Reductases. ACS Catal 2015. [DOI: 10.1021/cs501524k] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Gaurao V. Dhoke
- RWTH Aachen University, Chair of Biotechnology, Worringer Weg 3, D-52074 Aachen, Germany
| | - Mehdi D. Davari
- RWTH Aachen University, Chair of Biotechnology, Worringer Weg 3, D-52074 Aachen, Germany
| | - Ulrich Schwaneberg
- RWTH Aachen University, Chair of Biotechnology, Worringer Weg 3, D-52074 Aachen, Germany
| | - Marco Bocola
- RWTH Aachen University, Chair of Biotechnology, Worringer Weg 3, D-52074 Aachen, Germany
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11
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Vural H, Uçar İ. A combined theoretical and experimental study of chelidamate cadmium (II) complex, [Cd2(dpa)2(chel)2]⋅2[Cd(dpa)(chel)]⋅6H2O. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 136 Pt C:1298-1307. [PMID: 25456672 DOI: 10.1016/j.saa.2014.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 09/22/2014] [Accepted: 10/08/2014] [Indexed: 06/04/2023]
Abstract
A new chelidamate complex of Cd (II) ion, [Cd2(dpa)2(chel)2]⋅2[Cd(dpa)(chel)]⋅6H2O [(chel: chelidamate or 4-hydroxypyridine-2,6-dicarboxylate, dpa: di (2-picolyl)amine)] was synthesized and characterized by spectroscopic (UV-Vis and FT-IR spectroscopy) and structural (single-crystal X-ray diffraction) methods. Quantum chemical calculations were carried out by using Hartree Fock (HF) and Density Functional Theory (DFT)/B3LYP methods Stuttgart/Dresden (SDD) basis set. The asymmetric unit of the title compound contains two symmetry unrelated monomeric units, one dimeric unit and six water molecules of crystallization. The geometries around the Cd (II) metal centers in the units can be described as distorted octahedral for the monomeric units and distorted monocapped trigonal prism for the dimeric unit. The electronic structure of the complex was calculated using time dependent DFT (TD-DFT) method with polarizable continuum model (PCM). Molecular stability and bond strength were investigated by applying natural bond orbital analysis (NBO). The computed frequencies were compared with experimental frequencies.
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Affiliation(s)
- Hatice Vural
- Department of Physics, Faculty of Arts and Sciences, Amasya University, Ipekköy, 05000 Amasya, Turkey.
| | - İbrahim Uçar
- Department of Physics, Faculty of Arts and Sciences, Ondokuz Mayıs University, Kurupelit, 55139 Samsun, Turkey
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12
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Olsen JMH, Steinmann C, Ruud K, Kongsted J. Polarizable Density Embedding: A New QM/QM/MM-Based Computational Strategy. J Phys Chem A 2015; 119:5344-55. [DOI: 10.1021/jp510138k] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jógvan Magnus Haugaard Olsen
- Laboratory of
Computational Chemistry and Biochemistry, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
- Department
of Physics, Chemistry and Pharmacy, University of Southern Denmark, DK-5230 Odense
M, Denmark
| | - Casper Steinmann
- Department
of Physics, Chemistry and Pharmacy, University of Southern Denmark, DK-5230 Odense
M, Denmark
| | - Kenneth Ruud
- Centre for Theoretical
and Computational Chemistry, Department of Chemistry, University of Tromsø—The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Jacob Kongsted
- Department
of Physics, Chemistry and Pharmacy, University of Southern Denmark, DK-5230 Odense
M, Denmark
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13
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Hiscock HG, Thom AJW. Holomorphic Hartree–Fock Theory and Configuration Interaction. J Chem Theory Comput 2014; 10:4795-800. [DOI: 10.1021/ct5007696] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Hamish G. Hiscock
- University Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Alex J. W. Thom
- University Chemical Laboratory, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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14
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Ji M, Ren S, Hao C, Jin H, Qiu J. Theoretical study of the interaction between X (H, F) and graphene. MOLECULAR SIMULATION 2014. [DOI: 10.1080/08927022.2013.803552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chalupský J, Yanai T. Flexible nuclear screening approximation to the two-electron spin–orbit coupling based on ab initio parameterization. J Chem Phys 2013; 139:204106. [DOI: 10.1063/1.4832737] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gallo E, Lamberti C, Glatzel P. Investigation of the valence electronic states of Ti(IV) in Ti silicalite-1 coupling X-ray emission spectroscopy and density functional calculations. Phys Chem Chem Phys 2011; 13:19409-19. [PMID: 21970893 DOI: 10.1039/c1cp21556f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
We present an application of valence to core X-ray emission spectroscopy to understand the electronic structure of the industrially relevant catalyst titanium silicalite-1. The experimental spectrum was modelled within density functional theory, adopting a one electron approach, investigating the effects of different basis sets, density functionals and cluster sizes. The description of titanium silicalite-1 valence states follows the Kohn-Sham evaluation of the molecular orbitals involved in the computed transitions.
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Affiliation(s)
- Erik Gallo
- European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz, BP 220 38043, Grenoble Cedex 9, France
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Takatani T, Sears JS, Sherrill CD. Assessing the Performance of Density Functional Theory for the Electronic Structure of Metal−Salens: The M06 Suite of Functionals and the d4-Metals. J Phys Chem A 2010; 114:11714-8. [DOI: 10.1021/jp1046084] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tait Takatani
- Center for Computational Molecular Science and Technology, School of Chemistry and Biochemistry, and School of Computational Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - John S. Sears
- Center for Computational Molecular Science and Technology, School of Chemistry and Biochemistry, and School of Computational Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - C. David Sherrill
- Center for Computational Molecular Science and Technology, School of Chemistry and Biochemistry, and School of Computational Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
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19
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Berthier G, Defranceschi M. Chemical reactivity of second-row transition metal clusters from Hückel-type calculations. Theor Chem Acc 2009. [DOI: 10.1007/s00214-009-0529-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sears JS, Sherrill CD. Assessing the performance of density functional theory for the electronic structure of metal-salens: the d2-metals. J Phys Chem A 2008; 112:6741-52. [PMID: 18593130 DOI: 10.1021/jp802249n] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The performance of three common combinations of density functional theory has been evaluated for the geometries and relative energies of a commonly-employed model complex of the salen ligand [salen = bis(salicylaldehydo)ethylenediamine] with the d2-metals Ti(II), V(III), Cr(IV), Zr(II), Nb(III), and Mo(IV). High-level ab initio methods including complete active-space third-order perturbation theory have been employed both as benchmarks for the density functional theory results and to examine the multireference character of the low-lying electronic states in these systems. The strong multireference character of the systems has been clearly demonstrated. All of the functionals examined provide geometries that are typically within 0.2 A least root mean square deviation from the benchmark geometries. The performance of the density functionals for the relative energies of the low-lying electronic states is significantly worse, providing qualitatively different descriptions in some instances. Of the systems explored, no significant difference is observed in the multireference character or in the reliability of the density functional results when comparing 3d vs 4d transition-metal systems.
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Affiliation(s)
- John S Sears
- Center for Computational Molecular Science and Technology, School of Chemistry and Biochemistry, College of Computing, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, USA
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Sears JS, Sherrill CD. Assessing the Performance of Density Functional Theory for the Electronic Structure of Metal−Salens: The 3d0-Metals. J Phys Chem A 2008; 112:3466-77. [DOI: 10.1021/jp711595w] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- John S. Sears
- Center for Computational Molecular Science and Technology, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
| | - C. David Sherrill
- Center for Computational Molecular Science and Technology, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400
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Basis Sets for Ab Initio
Molecular Orbital Calculations and Intermolecular Interactions. REVIEWS IN COMPUTATIONAL CHEMISTRY 2007. [DOI: 10.1002/9780470125786.ch1] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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Solomonik VG, Stanton JF, Boggs JE. Approaching the basis set limit for transition metal compounds with highly polar bonds: A benchmark coupled-cluster study of the ScF3 and FeF3 molecular structures and spectra. J Chem Phys 2005; 122:094322. [PMID: 15836143 DOI: 10.1063/1.1853376] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The molecular equilibrium geometries, quadratic and cubic force constants, vibrational frequencies, and infrared intensities of scandium and iron trifluorides are determined ab initio with a sequence of atomic natural orbital basis sets using the CCSD(T) treatment of electron correlation. The largest basis set of spdf ghi quality contains 462 contracted Gaussian functions. Relativistic corrections are applied to compute the equilibrium geometries and vibrational frequencies. The cubic force constants are used to estimate vibrational corrections to the effective r(g) internuclear distances determined in the gas electron diffraction experiments. The computed molecular properties are extrapolated to the complete basis-set limit. The predicted values are compared to the available experimental data; uncertainties and inconsistencies in these data are then discussed.
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Affiliation(s)
- Victor G Solomonik
- Department of Physics, Ivanovo State University of Chemistry and Technology, Ivanovo 153000, Russia
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Klokishner S, Melsheimer J, Jentoft FS, Schlögl R. Optical bands of dodecanuclear compounds H4PVMo11O40·yH2O with Keggin structure. Semiclassical vibronic model. Phys Chem Chem Phys 2004. [DOI: 10.1039/b312753b] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Chiodo S, Russo N, Sicilia E. Newly developed basis sets for density functional calculations. J Comput Chem 2004; 26:175-84. [PMID: 15586396 DOI: 10.1002/jcc.20144] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Optimized contracted Gaussian basis sets of double-zeta valence polarized (DZVP) quality for first-row transition metals are presented. The DZVP functions were optimized using the PWP86 generalized gradient approximation (GGA) functional and the B3LYP hybrid functional. For a careful analysis of the basis sets performance the transition metal atoms and cations excitation energies were calculated and compared with the experimental ones. The calculated values were also compared with those obtained using the previously available DZVP basis sets developed at the local-density functional level. Because the new basis sets work better than the previous ones, possible reasons of this behavior are analyzed. The newly developed basis sets also provide a good estimation of other atomic properties such as ionization energies.
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Affiliation(s)
- S Chiodo
- Dipartimento di Chimica and Centro di Calcolo ad Alte Prestazioni per Elaborazioni Parallele e Distribuite-Centro d'Eccellenza MURST, Università della Calabria, I-87030 Arcavacata di Rende, Italy
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27
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Gomes ASP, Custodio R. Exact Gaussian expansions of Slater-type atomic orbitals. J Comput Chem 2002; 23:1007-12. [PMID: 12116405 DOI: 10.1002/jcc.10090] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Three exact Slater-type function (STO) integral transforms are presented. The STO-NG basis set can then be developed using either only 1s Gaussian functions, the same Gaussian exponents for each shell, or using the first Gaussian of each symmetry. The use of any of these three alternatives depends only on appropriate numerical integration techniques.
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Affiliation(s)
- André Severo Pereira Gomes
- Universidade Estadual de Campinas, Instituto de Química, Departamento de Físico-Química, Caixa Postal 6154, 13083-970 Campinas, SP, Brazil
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Sahnoun R, Mijoule C. Density Functional Study of Metal−Arene Compounds: Mono(benzene)chromium, Bis(benzene)chromium and Their Cations. J Phys Chem A 2001. [DOI: 10.1021/jp0034271] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Riadh Sahnoun
- Institut National Polytechnique - Ecole Nationale Supérieure de Chimie de Toulouse, Laboratoire des Matériaux et Interfaces, UPRES A5071, 118 route de Narbonne 31077 Toulouse Cedex 4, France
| | - Claude Mijoule
- Institut National Polytechnique - Ecole Nationale Supérieure de Chimie de Toulouse, Laboratoire des Matériaux et Interfaces, UPRES A5071, 118 route de Narbonne 31077 Toulouse Cedex 4, France
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Takano K, Tsumura H, Nakazawa H, Kurakata M, Hirano T. Ab Initio MO Study on Cationic Phosphenium Complexes of Group 6 Transition Metals, fac- and mer-[(bpy)(CO)3M{PN(Me)CH2CH2NMe}]+ (M = Mo, W). Organometallics 2000. [DOI: 10.1021/om000233z] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Keiko Takano
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan, and Department of Chemistry, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Hiroko Tsumura
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan, and Department of Chemistry, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Hiroshi Nakazawa
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan, and Department of Chemistry, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Misako Kurakata
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan, and Department of Chemistry, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Tsuneo Hirano
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan, and Department of Chemistry, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
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Rudolph WW, Pye CC. Raman Spectroscopic Measurements of Scandium(III) Hydration in Aqueous Perchlorate Solution and ab Initio Molecular Orbital Studies of Scandium(III) Water Clusters: Does Sc(III) Occur as a Hexaaqua Complex? J Phys Chem A 2000. [DOI: 10.1021/jp9916541] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hardesty JH, Koerner JB, Albright TA, Lee GY. Theoretical Study of the Acetylene Trimerization with CpCo. J Am Chem Soc 1999. [DOI: 10.1021/ja983098e] [Citation(s) in RCA: 138] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jon H. Hardesty
- Contribution from the Department of Chemistry, University of Houston, Houston, Texas 77204-5641
| | - John B. Koerner
- Contribution from the Department of Chemistry, University of Houston, Houston, Texas 77204-5641
| | - Thomas A. Albright
- Contribution from the Department of Chemistry, University of Houston, Houston, Texas 77204-5641
| | - Gab-Yong Lee
- Contribution from the Department of Chemistry, University of Houston, Houston, Texas 77204-5641
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Sordo J. Using fuzzy set theory to assess basis set quality. Chem Phys Lett 1999. [DOI: 10.1016/s0009-2614(99)00102-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zilberberg IL, Milov MA, Zhidomirov GM. Scaling the Coulomb interaction in calculations of electron spectra of transition metal complexes. J STRUCT CHEM+ 1999. [DOI: 10.1007/bf02700770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Rudolph WW, Pye CC. Raman Spectroscopic Measurements and ab Initio Molecular Orbital Studies of Cadmium(II) Hydration in Aqueous Solution. J Phys Chem B 1998. [DOI: 10.1021/jp973037n] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wolfram W. Rudolph
- Department of Earth Sciences, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X5
| | - Cory C. Pye
- Department of Chemistry, University of Calgary, Calgary AB, Canada T2N 1N4
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El-Bahraoui J, Molina, Olea DP. Theoretical Studies of Ag−Ag Closed-Shell Interaction in the Silver(I) Dimer Bis-μ-(5,7-dimethyl[1,2,4]triazolo[1,5-a]pyrimidine) Dinitrato Disilver(I): A RHF and Density Functional Study. J Phys Chem A 1998. [DOI: 10.1021/jp971389o] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jaouad El-Bahraoui
- Grupo de Modelización y Diseño Molecular, Instituto de Biotecnología, Universidad de Granada, Granada 18071, Spain
| | - Molina
- Grupo de Modelización y Diseño Molecular, Instituto de Biotecnología, Universidad de Granada, Granada 18071, Spain
| | - Dolores Portal Olea
- Grupo de Modelización y Diseño Molecular, Instituto de Biotecnología, Universidad de Granada, Granada 18071, Spain
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El-Bahraoui J, Molina JM, Olea DP. Electronic structure of π-allyl-Pd(II) chloride dimer and Pd2X4 (X = Cl,Br,I) model systems: a RHF and density functional theory study. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0166-1280(97)00424-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Park S, Fitch A, Wang Y. Computational Studies Compared to Electrochemical Measurements of Intercalation of Cationic Compounds in Wyoming Montmorillonite. J Phys Chem B 1997. [DOI: 10.1021/jp970127j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sungho Park
- Department of Chemistry, Loyola University of Chicago, Chicago, Illinois 60626
| | - Alanah Fitch
- Department of Chemistry, Loyola University of Chicago, Chicago, Illinois 60626
| | - Yunlong Wang
- Department of Chemistry, Loyola University of Chicago, Chicago, Illinois 60626
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Janiak C, Lange KCH, Versteeg U, Lentz D, Budzelaar PHM. Ethene Polymerization Activity and Coordination Gap Aperture in non-ansa Alkyl-substituted Cyclopentadienyl- and Phospholyl-zirconium/MAO Catalysts. ACTA ACUST UNITED AC 1996. [DOI: 10.1002/cber.19961291219] [Citation(s) in RCA: 72] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Mahapatra S, Halfen JA, Wilkinson EC, Pan G, Wang X, Young VG, Cramer CJ, Que, L, Tolman WB. Structural, Spectroscopic, and Theoretical Characterization of Bis(μ-oxo)dicopper Complexes, Novel Intermediates in Copper-Mediated Dioxygen Activation. J Am Chem Soc 1996. [DOI: 10.1021/ja962305c] [Citation(s) in RCA: 201] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Samiran Mahapatra
- Contribution from the Department of Chemistry, Center for Metals in Biocatalysis, and Supercomputer Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455
| | - Jason A. Halfen
- Contribution from the Department of Chemistry, Center for Metals in Biocatalysis, and Supercomputer Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455
| | - Elizabeth C. Wilkinson
- Contribution from the Department of Chemistry, Center for Metals in Biocatalysis, and Supercomputer Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455
| | - Gaofeng Pan
- Contribution from the Department of Chemistry, Center for Metals in Biocatalysis, and Supercomputer Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455
| | - Xuedong Wang
- Contribution from the Department of Chemistry, Center for Metals in Biocatalysis, and Supercomputer Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455
| | - Victor G. Young
- Contribution from the Department of Chemistry, Center for Metals in Biocatalysis, and Supercomputer Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455
| | - Christopher J. Cramer
- Contribution from the Department of Chemistry, Center for Metals in Biocatalysis, and Supercomputer Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455
| | - Lawrence Que,
- Contribution from the Department of Chemistry, Center for Metals in Biocatalysis, and Supercomputer Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455
| | - William B. Tolman
- Contribution from the Department of Chemistry, Center for Metals in Biocatalysis, and Supercomputer Institute, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455
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Torrent M, Gili P, Duran M, Solà M. Exploring chromium (VI) dioxodihalides chemistry: Is density functional theory the most suitable tool? J Chem Phys 1996. [DOI: 10.1063/1.471693] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Harkins PC, Petersson G, Haake P. Distortion of OPO bond angles in phosphorus monoanions: Ab initio studies. J Inorg Biochem 1996. [DOI: 10.1016/0162-0134(95)00031-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gugelchuk M. Comparison of local density functional and RHF methods for geometry optimizations of π-allyl nickel complexes. ACTA ACUST UNITED AC 1995. [DOI: 10.1016/0166-1280(95)04331-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Romero M, Salas JM, Quirós M, Sánchez M, Molina J, El Bahraoui J, Faure R. Structural and ab initio studies of AgAg bonding in the silver(I) dimer bis-μ-(5,7-dimethyl[1,2,4]triazolo[1,5-a]pyrimidine)dinitrato disilver(I). J Mol Struct 1995. [DOI: 10.1016/0022-2860(95)08891-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Murai T, Shimizu A, Tatematsu S, ?no K, Kanda T, Kato S. Dialkynyl selenides: Synthesis,13C NMR spectra, and molecular orbital calculations. HETEROATOM CHEMISTRY 1994. [DOI: 10.1002/hc.520050107] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ishida M, Aoyama T, Beniya Y, Yamabe S, Kato S, Inagaki S. π-Facial Selectivity in the Diels–Alder Reaction of 5-Substituted 1,3-Cyclopentadienes. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 1993. [DOI: 10.1246/bcsj.66.3430] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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de la Vega JMG, Miguel B. Approximate STO functions for the first-row transition metal atoms. J Comput Chem 1991. [DOI: 10.1002/jcc.540121003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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