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Tananta VL, Costa EV, Mary YS, Mary YS, S Al-Otaibi J, Costa RA. DFT, ADME studies and evaluation of the binding with HSA and MAO-B inhibitory potential of protoberberine alkaloids from Guatteria friesiana: theoretical insights of promising candidates for the treatment of Parkinson's disease. J Mol Model 2023; 29:353. [PMID: 37907772 DOI: 10.1007/s00894-023-05756-5] [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: 05/22/2023] [Accepted: 10/13/2023] [Indexed: 11/02/2023]
Abstract
CONTEXT Parkinson's disease is a chronic neurodegenerative condition that has no cure, characterized by the progressive degeneration of specific brain cells responsible for producing dopamine, a crucial neurotransmitter for controlling movement and muscle coordination. Parkinson's disease is estimated to affect around 1% of the world's population over the age of 60, but it can be diagnosed at younger ages. One of the treatment strategies for Parkinson's disease involves the use of drugs that aim to increase dopamine levels or simulate the action of dopamine in the brain. A class of commonly prescribed drugs are the so-called monoamine oxidase B (MAO-B) inhibitors due to the fact that this enzyme is responsible for metabolizing dopamine, thus reducing its levels in the brain. Studies have shown that berberine-derived alkaloids have the ability to selectively inhibit MAO-B activity, resulting in increased dopamine availability in the brain. In this context, berberine derivatives 13-hydroxy-discretinine and 7,8-dihydro-8-hydroxypalmatine, isolated from Guatteria friesiana, were evaluated via density functional theory followed by ADME studies, docking and molecular dynamic simulations with MAO-B, aiming to evaluate their anti-Parkinson potential, which have not been reported yet. Docking simulations with HSA were carried out aiming to evaluate the transport of these molecules through the circulatory system. METHODS The 3D structures of the berberine-derived alkaloids were modeled via the DFT approach at B3LYP-D3(BJ)/6-311 + + G(2df, 2pd) theory level using Gaussian 09 software. Solvation free energies were determined through Truhlar's solvation model. MEP and ALIE maps were generated with Multiwfn software. Autodock Vina software was used for molecular docking simulations and analysis of the interactions in the binding sites. The 3D structure of MAO-B was obtained from the Protein Data Bank website under PDB code 2V5Z. For the interaction of studied alkaloids with human serum albumin (HSA) drug sites, 3D structures with PDB codes 2BXD, 2BXG, and 4L9K were used. Molecular dynamics simulations were carried out using GROMACS 2019.4 software, with the GROMOS 53A6 force field at 100 ns simulation time. The estimation of the ligand's binding free energies was obtained via molecular mechanics Poisson-Boltzmann surface area (MM-PBSA) method.
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Affiliation(s)
- Victor L Tananta
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, AM, 69080-900, Brazil
| | - Emmanoel V Costa
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, AM, 69080-900, Brazil
| | | | | | - Jamelah S Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 8442811671, Riyadh, Saudi Arabia
| | - Renyer A Costa
- Department of Chemistry, Federal University of Amazonas (DQ-UFAM), Manaus, AM, 69080-900, Brazil.
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Pal R, Chattaraj PK. Electrophilicity index revisited. J Comput Chem 2023; 44:278-297. [PMID: 35546516 DOI: 10.1002/jcc.26886] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Revised: 03/30/2022] [Accepted: 04/22/2022] [Indexed: 01/03/2023]
Abstract
This review aims to be a comprehensive, authoritative, critical, and accessible review of general interest to the chemistry community; because the electrophilicity index is a very useful global reactivity descriptor defined within a conceptual density functional theory framework. Our group has also introduced electrophilicity based new global and local reactivity descriptors and also new associated electronic structure principles, which are important indicators of structure, stability, bonding, reactivity, interactions, and dynamics in a wide variety of physico-chemical systems and processes. This index along with its local counterpart augmented by the associated electronic structure principles could properly explain molecular vibrations, internal rotations and various types of chemical reactions. The concept of the electrophilicity index has been extended to dynamical processes, excited states, confined environment, spin-dependent and temperature-dependent situations, biological activity, site selectivity, aromaticity, charge removal and acceptance, presence of external perturbation through solvents, external electric and magnetic fields, and so forth. Although electrophilicity and its local variant can adequately interpret the behavior of a wide variety of systems and different physico-chemical processes involving them, their predictive potential remains to be explored. An exhaustive review on all these aspects will set the tone of the future research in that direction.
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Affiliation(s)
- Ranita Pal
- Advanced Technology Development Centre, Indian Institute of Technology Kharagpur, Kharagpur, India
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Filkina ME, Baray DN, Beloglazkina EK, Grishin YK, Roznyatovsky VA, Kukushkin ME. Regioselective Cycloaddition of Nitrile Imines to 5-Methylidene-3-phenyl-hydantoin: Synthesis and DFT Calculations. Int J Mol Sci 2023; 24:ijms24021289. [PMID: 36674803 PMCID: PMC9864863 DOI: 10.3390/ijms24021289] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/04/2023] [Accepted: 01/07/2023] [Indexed: 01/11/2023] Open
Abstract
Nitrile imine cycloaddition to hydantoins containing an exocyclic C=C double bond has been previously described in a very limited number of examples. In this work, regioselective synthesis of spiro-pyrazoline-imidazolidine-2,4-diones based on a 1,3-dipolar cycloaddition reaction of nitrile imines to 5-methylidene-3-phenyl-hydantoin have been proposed. It was found that, regardless of the nature of the aryl substituents at the terminal C and N atoms of the C-N-N fragment of nitrile imine (electron donor or electron acceptor), cycloaddition to the 5-methylidenhydantoin exocyclic C=C bond proceeds regioselectively, and the terminal nitrogen atom of the nitrile imine connects to the more sterically hindered carbon atom of the double bond, which leads to the formation of a 5-disubstituted pyrazoline ring. The observed cycloaddition regioselectivity was rationalized using DFT calculations of frontier molecular orbital interactions, global CDFT reactivity indices, and minimum energy paths.
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Benyza N, Allouche F, Dammak SW, Lanez E, Lanez T. Chemical Reactivity, Topological Analysis, and Second-Order Nonlinear Optical Responses of M3O@Al12N12: A Quantum Chemical Study. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422130118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Is It Possible to Restrain OER on Simple Carbon Electrodes to Efficiently Electrooxidize Organic Pollutants? Molecules 2022; 27:molecules27165203. [PMID: 36014441 PMCID: PMC9415942 DOI: 10.3390/molecules27165203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022] Open
Abstract
This paper presents a comparative analysis of three carbon-based electrodes: bare multiwalled carbon nanotubes (MWCNT), SnO2/MWCNT, and PbO2/graphene-nanoribbons (PbO2/GNR) composites, as anodes for the electrooxidative degradation of Rhodamine B as a model organic pollutant. Anodic electrooxidation of Rhodamine B was performed on all three electrodes, and the decolorization efficiency was found to increase in the order MWCNT < PbO2/GNR < SnO2/MWCNT. The electrodes were characterized by X-ray photoelectron spectroscopy (XPS) and linear sweep voltammetry (LSV). It was proposed that, in the 0.1 M Na2SO4 applied as electrolyte, observed decolorization mainly occurs in the interaction of Rhodamine B with OH radical adsorbed on the anode. Finally, the obtained results were complemented with Density Functional Theory (DFT) calculations of OH-radical interaction with appropriate model surfaces: graphene(0001), SnO2(001), and PbO2(001). It was found that the stabilization of adsorbed OH-radical on metal oxide spots (SnO2 or PbO2) compared to carbon is responsible for the improved efficiency of composites in the degradation of Rhodamine B. The observed ability of metal oxides to improve the electrooxidative potential of carbon towards organic compounds can be useful in the future design of appropriate anodes.
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Assel A, Hajlaoui A, Lazrag H, Manachou M, Romdhane A, Kraiem J, Jannet HB. Synthesis of new sulfamate linked 4-hydroxycoumarine conjugates as potent anti-α-amylase agents: In vitro approach coupled with molecular docking, DFT calculation and chemoinformatics prediction. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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A theoretical investigation of the regio- and stereoselectivities of the [3 + 2] cycloaddition reaction between ethyl vinyl ether and substituted α-alkoxynitrones. Theor Chem Acc 2022. [DOI: 10.1007/s00214-022-02874-w] [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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Experimental and computational investigation on spectroscopic characterization, molecular modeling and biological evaluation of 3, 3′, 4′7-tetrahydroxyflavone, 3, 3′, 4′7-tetrahydroxyflavone-6-methoxymethane against in A549 cells. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Synthesis of new halogenated flavonoid-based isoxazoles: in vitro and in silico evaluation of a-amylase inhibitory potential, a SAR analysis and DFT studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131379] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Jana G, Pal R, Chattaraj PK. XNgNSi (X = HCC, F; Ng = Kr, Xe, Rn): A New Class of Metastable Insertion Compounds Containing Ng-C/F and Ng-N Bonds and Possible Isomerization therein. J Phys Chem A 2021; 125:10514-10523. [PMID: 34747606 DOI: 10.1021/acs.jpca.1c07677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recently, astronomically important silaisocyanoacetylene (HCCNSi) possessing a large dipole moment has been detected for the first time with the help of crossed molecular beam experiments. Quantum chemical computations at higher levels of theory have also been performed to characterize the transient species. In this study, we have analyzed the equilibrium geometry, stability, reactivity, and energetics as well as the nature of bonding in the noble gas (Ng) inserted HCCNSi compound. We have also considered its F analogue to understand the influence of the most electronegative atom in the compound. Metastable behavior of the XNgNSi compounds (X = HCC, F; Ng = Kr-Rn) is examined by calculating thermochemical parameters like free energy change (ΔG) and zero-point-energy-corrected dissociation energy (D0) at 298 K for all possible two-body (2B) and three-body (3B) (both neutral as well as ionic) dissociation channels using coupled-cluster theory [CCSD(T)] in addition to density functional theory (DFT) as well as second order Møller-Plesset perturbation theory (MP2). The set of predicted compounds is found to be endergonic in nature, having high positive free energy change suggesting the thermochemical stability of the compounds except for the 2B Ng-release paths. Though thermodynamically feasible, they are kinetically protected with very high activation free energy barriers. Interestingly, the release of Ng from the parent moiety XNgNSi produces the XSiN isomer, by 180° flipping of the NSi moiety. This can also be seen in the dynamical simulation carried out with the help of atom-centered density matrix propagation (ADMP) technique at 2000K for 1 ps. The bonding in Ng-C, Ng-F, and Ng-N bonds of the studied compounds is analyzed and described with the aid of natural bond orbital (NBO), topological parameters computed using atoms-in-molecules theory (AIM), energy decomposition analysis (EDA), and adaptive natural density partitioning (AdNDP) methods. The natural charge distribution on the constituent atoms suggests that the compounds can be partitioned into both ways of representations, viz., neutral radical as well as ionic fragments. Lastly, the reactivity of the compounds is scrutinized using certain reactivity descriptors calculated within the domain of conceptual density functional theory (CDFT).
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Affiliation(s)
- Gourhari Jana
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai-400076, India
| | - Ranita Pal
- Advanced Technology Development Centre, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
| | - Pratim Kumar Chattaraj
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai-400076, India.,Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
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Molecular structure, tautomer's, reactivity and inhibition studies on 6-Methyl-2-thiouracil for mild steel corrosion in aqueous HCl (1.00 M): Experimental and Theoretical Studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130927] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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12
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Puchkov SV, Nepomnyashchikh YV. Evaluation of the Reactivity of Cyclohexanone СН Bonds in Reactions with tert-Butylperoxy Radical by Quantum Chemical Methods. KINETICS AND CATALYSIS 2021. [DOI: 10.1134/s0023158421040108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Alarfaji SS, Ali IH, Bani-Fwaz MZ, Bedair MA. Synthesis and Assessment of Two Malonyl Dihydrazide Derivatives as Corrosion Inhibitors for Carbon Steel in Acidic Media: Experimental and Theoretical Studies. Molecules 2021; 26:molecules26113183. [PMID: 34073408 PMCID: PMC8199006 DOI: 10.3390/molecules26113183] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/21/2021] [Accepted: 05/23/2021] [Indexed: 11/16/2022] Open
Abstract
Despite the extensive use of carbon steel in all industrial sectors, particularly in the petroleum industry, its low corrosion resistance is an ongoing problem for these industries. In the current work, two malonyl dihydrazide derivatives, namely 2,2'-malonylbis (N-phenylhydrazine-1-carbothiamide (MBC) and N'1, N'3-bis(-2-hydroxybenzylidene) malonohydrazide (HBM), were examined as inhibitors for the carbon steel corrosion in 1.0 M HCl. Both MBC and HBM were characterised using thin-layer chromatography, elemental analysis, infrared spectroscopy, and nuclear magnetic resonance techniques. The corrosion tests were performed using mass loss measurements, polarisation curves, and electrochemical impedance spectroscopy. It is obtained from the mass loss studies that the optimal concentration for both inhibitors is 2.0 × 10-5 mol/L, and the inhibition efficiencies reached up to 90.7% and 84.5% for MBC and HBM, respectively. Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarisation (PDP) indicate an increased impedance in the presence of both MBC and HBM and mixed-type inhibitors, respectively. Both inhibitors can mitigate corrosion in the range of 298-328 K. Values of free energy changes obtained from the Langmuir model suggest that the inhibitors suppress the corrosion process principally by chemisorption. The computational investigations were conducted to identify the factors connected with the anti-corrosive properties of the examined inhibitors.
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Affiliation(s)
- Saleh S. Alarfaji
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; (S.S.A.); (M.Z.B.-F.)
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Ismat H. Ali
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; (S.S.A.); (M.Z.B.-F.)
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Correspondence:
| | - Mutasem Z. Bani-Fwaz
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; (S.S.A.); (M.Z.B.-F.)
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Mahmoud A. Bedair
- Department of Chemistry, Faculty of Science (Men’s Campus), Al-Azhar University, Cairo 11884, Egypt;
- College of Science and Arts, University of Bisha, P.O. Box 101, Al-Namas 61977, Saudi Arabia
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Molecular structure and mild steel/HCl corrosion inhibition of 4,5-Dicyanoimidazole: Vibrational, electrochemical and quantum mechanical calculations. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129647] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Chakraborty D, Chattaraj PK. Conceptual density functional theory based electronic structure principles. Chem Sci 2021; 12:6264-6279. [PMID: 34084424 PMCID: PMC8115084 DOI: 10.1039/d0sc07017c] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 03/10/2021] [Indexed: 12/20/2022] Open
Abstract
In this review article, we intend to highlight the basic electronic structure principles and various reactivity descriptors as defined within the premise of conceptual density functional theory (CDFT). Over the past several decades, CDFT has proven its worth in providing valuable insights into various static as well as time-dependent physicochemical problems. Herein, having briefly outlined the basics of CDFT, we describe various situations where CDFT based reactivity theory could be employed in order to gain insights into the underlying mechanism of several chemical processes.
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Affiliation(s)
- Debdutta Chakraborty
- Department of Chemistry, KU Leuven Celestijnenlaan 200F-2404 3001 Leuven Belgium
| | - Pratim Kumar Chattaraj
- Department of Chemistry, Indian Institute of Technology Kharagpur 721302 West Bengal India +91 3222 255303 +91 3222 283304
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai 400076 India
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Dahmani R, Manachou M, Belaidi S, Chtita S, Boughdiri S. Structural characterization and QSAR modeling of 1,2,4-triazole derivatives as α-glucosidase inhibitors. NEW J CHEM 2021. [DOI: 10.1039/d0nj05298a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In order to identify potential new drugs classified as alpha-Glucosidase inhibitors (AGIs), we used quantum chemical descriptors and QSAR modeling to predict the biological activity of triazole derivatives as AGIs.
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Affiliation(s)
- Rahma Dahmani
- University of Tunis El Manar, Faculty of Sciences of Tunis
- Department of Chemistry
- Research Laboratory Characterization
- Applications and Modeling of Materials
- Tunis
| | - Marwa Manachou
- University of Tunis El Manar, Faculty of Sciences of Tunis
- Department of Chemistry
- Research Laboratory Characterization
- Applications and Modeling of Materials
- Tunis
| | - Salah Belaidi
- University of Biskra, Faculty of Sciences
- Department of Chemistry
- Group of Computational and Pharmaceutical Chemistry
- LMCE Laboratory
- Biskra
| | - Samir Chtita
- Hassan II university of Casablanca
- Faculty of Sciences Ben M'Sik
- Laboratory of Physical Chemistry of Materials
- B.P. 7955 Sidi Othmane
- Casablanca
| | - Salima Boughdiri
- University of Tunis El Manar, Faculty of Sciences of Tunis
- Department of Chemistry
- Research Laboratory Characterization
- Applications and Modeling of Materials
- Tunis
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Hannachi D, El Houda Amrane N, Merzoud L, Chermette H. Exploring the antioxidant activity of thiaflavan compounds: a quantum chemical study. NEW J CHEM 2021. [DOI: 10.1039/d1nj01996a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Conceptual DFT tools (HAT, SPLET, SET-PT, aromaticity index,…) have been used to explore the antioxidant activity of thiaflavan compounds, and predict which derivate should be the best one.
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Affiliation(s)
- Douniazed Hannachi
- Département de Chimie
- Faculté des Sciences
- Université de Setif-1, El Bez
- Setif
- Algeria
| | - Nour El Houda Amrane
- Laboratoire d’Electrochimie
- d’Ingénierie Moléculaire et de Catalyse Redox (LEIMCR), Faculté de Technologie, Université Sétif-1
- Sétif
- Algeria
| | - Lynda Merzoud
- Université de Lyon, Université Claude Bernard Lyon 1
- CNRS UMR 5280, Institut des Sciences Analytiques
- 69622 Villeurbanne Cedex
- France
| | - Henry Chermette
- Université de Lyon, Université Claude Bernard Lyon 1
- CNRS UMR 5280, Institut des Sciences Analytiques
- 69622 Villeurbanne Cedex
- France
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Boughoues Y, Benamira M, Messaadia L, Ribouh N. Adsorption and corrosion inhibition performance of some environmental friendly organic inhibitors for mild steel in HCl solution via experimental and theoretical study. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124610] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Attarbashi M, Shiraz NZ, Samadizadeh M. DFT studies on the diastereoselectivity and regioselectivity of multicomponent domino Knoevenagel/Diels–Alder reaction. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2020. [DOI: 10.1142/s0219633620500054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this study, mechanism and stereochemistry of multicomponent domino Knoevenagel/Diels–Alder reaction were investigated theoretically. Structures of reagents, transition states, intermediates, and products were optimized at M062X/6-31[Formula: see text]G(d,p) level of theory. Although the mechanism of this reaction involved several processes, including bond rotation, isomerization, asymmetric cycloaddition, acid-base, and nucleophile–electrophile competitions, critical processes were studied to provide a clearer picture of the mechanism of this valuable reaction in terms of stereochemistry considerations. According to the results, the ring closure step of reaction performed via a polar Dield-Alder mechanism, having enthalpy at approximately 40[Formula: see text]kcal/mol. The diastereoselectivity of the reaction was controlled by the interaction of dienophile with the less hindered face of diene through a more stable endo transition state ([Formula: see text] and 27.31 in methanol and gas phase, respectively). HSAB criteria could explain the regioselectivity of this reaction by considering the least softness difference ([Formula: see text]) for interacting C-atoms based on Hirshfeld populations. The result was the creation of cis-spiro cyclohexanone under kinetic and thermodynamic controls as a predominant diastereoselective and regioselective product.
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Affiliation(s)
- Mina Attarbashi
- Department of Chemistry, Islamic Azad University, Central Tehran Branch 146786831, Tehran, Iran
| | - Nader Zabarjad Shiraz
- Department of Chemistry, Islamic Azad University, Central Tehran Branch 146786831, Tehran, Iran
| | - Marjaneh Samadizadeh
- Department of Chemistry, Islamic Azad University, Central Tehran Branch 146786831, Tehran, Iran
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Puchkov SV, Nepomnyashchikh YV. Reactions of 2-Butanol with Hydroperoxyl and 2-Hydroxy-2-Butyl Peroxy Radicals. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2020. [DOI: 10.1134/s199079312002013x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Oller J, Saez DA, Vöhringer-Martinez E. Atom-Condensed Fukui Function in Condensed Phases and Biological Systems and Its Application to Enzymatic Fixation of Carbon Dioxide. J Phys Chem A 2020; 124:849-857. [PMID: 31951411 DOI: 10.1021/acs.jpca.9b07012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Local reactivity descriptors such as atom-condensed Fukui functions are promising computational tools to study chemical reactivity at specific sites within a molecule. Their applications have been mainly focused on isolated molecules in their most stable conformation without considering the effects of the surroundings. Here we propose to combine quantum mechanics/molecular mechanics Born-Oppenheimer molecular dynamics simulations to obtain the microstates (configurations) of a molecular system using different representations of the molecular environment and calculate Boltzmann-weighted atom-condensed local reactivity descriptors based on conceptual density functional theory. Our approach takes the conformational fluctuations of the molecular system and the polarization of its electron density by the environment into account, allowing us to analyze the effect of the molecular environment on reactivity. In this contribution, we apply the method mentioned above to the catalytic fixation of carbon dioxide by crotonyl-CoA carboxylase/reductase and study if the enzyme alters the reactivity of its substrate compared with an aqueous solution. Our main result is that the protein environment activates the substrate by the elimination of solute-solvent hydrogen bonds from aqueous solution in the two elementary steps of the reaction mechanism: the nucleophilic attack of a hydride anion from NADPH on the α,β-unsaturated thioester and the electrophilic attack of carbon dioxide on the formed enolate species.
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Affiliation(s)
- Javier Oller
- Departamento de Fı́sico-Quı́mica, Facultad de Ciencias Quı́micas , Universidad de Concepción , Concepción 4070386 , Chile
| | - David Adrian Saez
- Departamento de Fı́sico-Quı́mica, Facultad de Ciencias Quı́micas , Universidad de Concepción , Concepción 4070386 , Chile
| | - Esteban Vöhringer-Martinez
- Departamento de Fı́sico-Quı́mica, Facultad de Ciencias Quı́micas , Universidad de Concepción , Concepción 4070386 , Chile
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Ligand stabilized transient “MNC” and its influence on MNC → MCN isomerization process: a computational study (M = Cu, Ag, and Au). Theor Chem Acc 2019. [DOI: 10.1007/s00214-019-2532-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kumar Choutipalli VS, Subramanian V. Role of Graphitic Nitrogen and π‐Conjugated Functional Groups in Selective Oxidation of Alcohols: A DFT based Mechanistic Elucidation. Chem Asian J 2019; 14:4798-4806. [DOI: 10.1002/asia.201901062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 09/27/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Venkata Surya Kumar Choutipalli
- Inorganic and Physical Chemistry LaboratoryCSIR-Central Leather Research Institute Adyar Chennai 600 020 India
- Academy of Scientific and Innovative Research (AcSIR) Gaziabad India
| | - Venkatesan Subramanian
- Inorganic and Physical Chemistry LaboratoryCSIR-Central Leather Research Institute Adyar Chennai 600 020 India
- Academy of Scientific and Innovative Research (AcSIR) Gaziabad India
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Manachou M, Morell C, Chermette H, Boughdiri S. Theoretical study of the mechanism and regioselectivity in the formation of pyrazolo[1,5-a]-[1,3,5]-triazines and pyrazolo[1,5-a]-[1,3,5]triazinones: A DFT study. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.04.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Jana G, Jha R, Pan S, Chattaraj PK. Microsolvation of lithium–phosphorus double helix: a DFT study. Theor Chem Acc 2019. [DOI: 10.1007/s00214-019-2462-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Tanış E, Çankaya N, Yalçın S. Synthesis, Characterization, Computation of Global Reactivity Descriptors and Antiproliferative Activity of N-(4-nitrophenyl)Acrylamide. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2019. [DOI: 10.1134/s1990793119010147] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Ghara M, Chattaraj PK. A computational study on hydrogenation of CO2, catalyzed by a bridged B/N frustrated Lewis pair. Struct Chem 2019. [DOI: 10.1007/s11224-018-1264-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Campos-Fernández L, Barrientos-Salcedo C, Herrera Valencia EE, Ortiz-Muñiz R, Soriano-Correa C. Substituent effects on the stability, physicochemical properties and chemical reactivity of nitroimidazole derivatives with potential antiparasitic effect: a computational study. NEW J CHEM 2019. [DOI: 10.1039/c9nj02207d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Neglected tropical diseases caused by parasitic pathogens have caused an increase in research interest in drug discovery.
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Affiliation(s)
- Linda Campos-Fernández
- Unidad de Química Computacional
- Facultad de Estudios Superiores (FES)-Zaragoza
- Universidad Nacional Autónoma de México (UNAM)
- C.P. 09230 Ciudad de México
- Mexico
| | - Carolina Barrientos-Salcedo
- Laboratorio de Química Médica y Quimiogenómica
- Facultad de Bioanálisis Campus Veracruz
- Universidad Veracruzana
- C.P. 91700 Veracruz
- Mexico
| | | | - Rocío Ortiz-Muñiz
- Departamento de Ciencias de la Salud
- Universidad Autónoma Metropolitana (UAM)
- C.P. 09340 Ciudad de México
- Mexico
| | - Catalina Soriano-Correa
- Unidad de Química Computacional
- Facultad de Estudios Superiores (FES)-Zaragoza
- Universidad Nacional Autónoma de México (UNAM)
- C.P. 09230 Ciudad de México
- Mexico
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Barrientos-Salcedo C, Espinoza B, Soriano-Correa C. Computational study of substituent effects on the physicochemical properties and chemical reactivity of selected antiparasitic 5-nitrofurans. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.06.089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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31
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Lewis acidity of benzene in half-sandwich ruthenium arene complex. A computational study. COMPUT THEOR CHEM 2018. [DOI: 10.1016/j.comptc.2018.05.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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32
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Computational study of substituent effects on the acidity, toxicity and chemical reactivity of bacteriostatic sulfonamides. J Mol Graph Model 2018; 81:116-124. [DOI: 10.1016/j.jmgm.2018.02.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 12/21/2022]
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33
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Ben Said R, Hamed AI, Essalah K, Al-Ayed AS, Boughdiri S, Tangour B, Kowalczyk M, Moldoch J, Mahalel UA, Oleszek W, Stochmal A. Fast characterization of C- glycoside acetophenones in Medemia argun male racemes (an Ancient Egyptian palm) using LC-MS analyses and computational study with their antioxidant effect. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.105] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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34
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Host-guest complex of N-(2-chloroethyl), N-nitroso, N′, N′ -dicyclohexylsulfamid with β-cyclodextrin: Fluorescence, QTAIM analysis and structure-chemical reactivity. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.05.135] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Adsorption and anticorrosion behavior of 1-((pyridin-2-ylamino)(pyridin-4-yl)methyl)pyrrolidine-2,5-dione on mild steel surface in hydrochloric acid solution. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-3112-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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36
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Jankowski P, Wieczorek W, Johansson P. SEI-forming electrolyte additives for lithium-ion batteries: development and benchmarking of computational approaches. J Mol Model 2017; 23:6. [PMID: 27966017 PMCID: PMC5155019 DOI: 10.1007/s00894-016-3180-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 11/28/2016] [Indexed: 11/23/2022]
Abstract
SEI-forming additives play an important role in lithium-ion batteries, and the key to improving battery functionality is to determine if, how, and when these additives are reduced. Here, we tested a number of computational approaches and methods to determine the best way to predict and describe the properties of the additives. A wide selection of factors were evaluated, including the influences of the solvent and lithium cation as well as the DFT functional and basis set used. An optimized computational methodology was employed to assess the usefulness of different descriptors.
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Affiliation(s)
- Piotr Jankowski
- Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664, Warsaw, Poland.
- Department of Physics, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden.
- ALISTORE-ERI European Research Institute, 33 rue Saint Leu, 80039, Amiens, France.
| | - Władysław Wieczorek
- Faculty of Chemistry, Warsaw University of Technology, ul. Noakowskiego 3, 00-664, Warsaw, Poland
- ALISTORE-ERI European Research Institute, 33 rue Saint Leu, 80039, Amiens, France
| | - Patrik Johansson
- Department of Physics, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
- ALISTORE-ERI European Research Institute, 33 rue Saint Leu, 80039, Amiens, France
- Laboratoire de Réactivité et Chimie des Solides, CNRS UMR 7314, Université de Picardie Jules Verne, 33 rue Saint Leu, 80039, Amiens, France
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Parida SK, Sahu S, Sharma S. Regioselectivity of third-row maingroup dicarbides, C2X (X = K-Br) for CO interaction: Fukui function and topological analyses. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.06.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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DEKA BHABESHCHANDRA, BHATTACHARYYA PRADIPKR. Reactivity of chitosan derivatives and their interaction with guanine: A computational study. J CHEM SCI 2016. [DOI: 10.1007/s12039-016-1064-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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39
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Rodrigues-Santos CE, Echevarria A, Sant’Anna CMR, Bitencourt TB, Nascimento MG, Bauerfeldt GF. Quantitative Structure-Property Relationship (QSPR) Models for a Local Quantum Descriptor: Investigation of the 4- and 3-Substituted-Cinnamic Acid Esterification. Molecules 2015; 20:17493-510. [PMID: 26402661 PMCID: PMC6331874 DOI: 10.3390/molecules200917493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 09/12/2015] [Accepted: 09/15/2015] [Indexed: 11/16/2022] Open
Abstract
In this work, the theoretical description of the 4- and 3-substituted-cinnamic acid esterification with different electron donating and electron withdrawing groups was performed at the B3LYP and M06-2X levels, as a two-step process: the O-protonation and the nucleophile attack by ethanol. In parallel, an experimental work devoted to the synthesis and characterization of the substituted-cinnamate esters has also been performed. In order to quantify the substituents effects, quantitative structure–property relationship (QSPR) models based on the atomic charges, Fukui functions and the Frontier Effective-for-Reaction Molecular Orbitals (FERMO) energies were investigated. In fact, the Fukui functions, ƒ+C and ƒ−O, indicated poor correlations for each individual step, and in contrast with the general literature, the O-protonation step is affected both by the FERMO energies and the O-charges of the carbonyl group. Since the process was shown to not be totally described by either charge- or frontier-orbitals, it is proposed to be frontier-charge-miscere controlled. Moreover, the observed trend for the experimental reaction yields suggests that the electron withdrawing groups favor the reaction and the same was observed for Step 2, which can thus be pointed out as the determining step.
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Affiliation(s)
- Cláudio E. Rodrigues-Santos
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal Rural do Rio de Janeiro-RJ, Seropédica 23890-900, Brazil; E-Mails: (C.E.R.-S.); (A.E.); (C.M.R.S.)
| | - Aurea Echevarria
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal Rural do Rio de Janeiro-RJ, Seropédica 23890-900, Brazil; E-Mails: (C.E.R.-S.); (A.E.); (C.M.R.S.)
| | - Carlos M. R. Sant’Anna
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal Rural do Rio de Janeiro-RJ, Seropédica 23890-900, Brazil; E-Mails: (C.E.R.-S.); (A.E.); (C.M.R.S.)
| | - Thiago B. Bitencourt
- Departamento de Engenharia de Alimentos, Universidade Federal da Fronteira Sul, Laranjeiras do Sul-PR 85303-775, Brazil; E-Mail:
| | - Maria G. Nascimento
- Departamento de Química, Universidade Federal de Santa Catarina, Florianópolis-SC 88040-900, Brazil; E-Mail:
| | - Glauco F. Bauerfeldt
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal Rural do Rio de Janeiro-RJ, Seropédica 23890-900, Brazil; E-Mails: (C.E.R.-S.); (A.E.); (C.M.R.S.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel./Fax: +55-21-2682-2807
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Chemical Reactivity of Isoproturon, Diuron, Linuron, and Chlorotoluron Herbicides in Aqueous Phase: A Theoretical Quantum Study Employing Global and Local Reactivity Descriptors. J CHEM-NY 2015. [DOI: 10.1155/2015/751527] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We have calculated global and local DFT reactivity descriptors for isoproturon, diuron, linuron, and chlorotoluron herbicides at the MP2/6-311++G(2d,2p) level of theory. The results suggest that, in aqueous conditions, chlorotoluron, linuron, and diuron herbicides may be degraded by elimination of urea moiety through electrophilic attacks. On the other hand, electrophilic, nucleophilic, and free radical attacks on isoproturon may cause the elimination of isopropyl fragment.
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Martins-Costa MTC, García-Prieto FF, Ruiz-López MF. Reactivity of aldehydes at the air–water interface. Insights from molecular dynamics simulations and ab initio calculations. Org Biomol Chem 2015; 13:1673-9. [DOI: 10.1039/c4ob02029d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Computer simulations show that solvation effects at the air–water interface significantly influence the chemistry of aldehydes, enhancing for instance the benzaldehyde photolysis rate constant by one order of magnitude.
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Mechanism and regioselectivity of 1,3-dipolar cycloaddition reactions of sulphur-centred dipoles with furan-2,3-dione: A theoretical study using DFT. J CHEM SCI 2014. [DOI: 10.1007/s12039-013-0540-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Emamian SR, Zahedi E. Mechanism and regioselectivity of the 1,3-dipolar cycloaddition of thiocarbonyl S-imide with cyclopent-3-ene-1,2-dione and methoxyethene: a density functional theory approach. J PHYS ORG CHEM 2012. [DOI: 10.1002/poc.2911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Saeed Reza Emamian
- Chemistry Department, Shahrood Branch; Islamic Azad University; Shahrood; Iran
| | - Ehsan Zahedi
- Chemistry Department, Shahrood Branch; Islamic Azad University; Shahrood; Iran
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45
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Affiliation(s)
- Pratim Kumar Chattaraj
- Department of Chemistry, Center for Theoretical Studies, Indian Institute of Technology, Kharagpur, India
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46
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Gayatri G, Sastry GN. Estimating Regio and Stereoselectivity in [4+2] Cycloadditions of Vinyl-Substituted Cyclic Dienes with Maleic Anhydride. J Phys Chem A 2009; 113:12013-21. [DOI: 10.1021/jp9038072] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gaddamanugu Gayatri
- Molecular Modeling Group, Organic Chemical Sciences, Indian Institute of Chemical Technology, Hyderabad-500607, India
| | - G. Narahari Sastry
- Molecular Modeling Group, Organic Chemical Sciences, Indian Institute of Chemical Technology, Hyderabad-500607, India
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Jaramillo P, Pérez P, Fuentealba P, Canuto S, Coutinho K. Solvent Effects on Global Reactivity Properties for Neutral and Charged Systems Using the Sequential Monte Carlo Quantum Mechanics Model. J Phys Chem B 2009; 113:4314-22. [DOI: 10.1021/jp808210y] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Paula Jaramillo
- Universidade de São Paulo, Instituto de Física,, CP 66318, 05314-970 São Paulo, SP, Brazil, Universidad Andres Bello, Facultad de Ecología y Recursos Naturales, Departamento de Ciencias Químicas, Laboratorio de Química Teórica, Republica 275, Santiago, Chile, and Universidad de Chile, Facultad de Ciencias, Departamento de Física, Casilla 653-Santiago, Santiago, Chile
| | - Patricia Pérez
- Universidade de São Paulo, Instituto de Física,, CP 66318, 05314-970 São Paulo, SP, Brazil, Universidad Andres Bello, Facultad de Ecología y Recursos Naturales, Departamento de Ciencias Químicas, Laboratorio de Química Teórica, Republica 275, Santiago, Chile, and Universidad de Chile, Facultad de Ciencias, Departamento de Física, Casilla 653-Santiago, Santiago, Chile
| | - Patricio Fuentealba
- Universidade de São Paulo, Instituto de Física,, CP 66318, 05314-970 São Paulo, SP, Brazil, Universidad Andres Bello, Facultad de Ecología y Recursos Naturales, Departamento de Ciencias Químicas, Laboratorio de Química Teórica, Republica 275, Santiago, Chile, and Universidad de Chile, Facultad de Ciencias, Departamento de Física, Casilla 653-Santiago, Santiago, Chile
| | - Sylvio Canuto
- Universidade de São Paulo, Instituto de Física,, CP 66318, 05314-970 São Paulo, SP, Brazil, Universidad Andres Bello, Facultad de Ecología y Recursos Naturales, Departamento de Ciencias Químicas, Laboratorio de Química Teórica, Republica 275, Santiago, Chile, and Universidad de Chile, Facultad de Ciencias, Departamento de Física, Casilla 653-Santiago, Santiago, Chile
| | - Kaline Coutinho
- Universidade de São Paulo, Instituto de Física,, CP 66318, 05314-970 São Paulo, SP, Brazil, Universidad Andres Bello, Facultad de Ecología y Recursos Naturales, Departamento de Ciencias Químicas, Laboratorio de Química Teórica, Republica 275, Santiago, Chile, and Universidad de Chile, Facultad de Ciencias, Departamento de Física, Casilla 653-Santiago, Santiago, Chile
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48
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Chattaraj PK, Giri S. Electrophilicity index within a conceptual DFT framework. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b802832j] [Citation(s) in RCA: 152] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Affiliation(s)
- Pratim Kumar Chattaraj
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, IndiaThis is a Chemical Reviews Perennial Review. The root paper of this title was published in 2006 (Chattaraj, P. K.; Sarkar, U.; Roy, D. R. Chem. Rev. 2006, 106, 2065). Updates to the text appear in red type
| | - Debesh Ranjan Roy
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, IndiaThis is a Chemical Reviews Perennial Review. The root paper of this title was published in 2006 (Chattaraj, P. K.; Sarkar, U.; Roy, D. R. Chem. Rev. 2006, 106, 2065). Updates to the text appear in red type
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Chamorro E, Pérez P. Condensed-to-atoms electronic Fukui functions within the framework of spin-polarized density-functional theory. J Chem Phys 2007; 123:114107. [PMID: 16392551 DOI: 10.1063/1.2033689] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
A simple formalism devised to calculate the condensed-to-atoms Fukui function [R. R. Contreras, P. Fuentealba, M. Galván, and P. Pérez, Chem. Phys. Lett. 304, 405 (1999)] has been further analyzed within a spin-polarized density-functional theory framework. The model is based on a frozen-core approximation to these local reactivity indices [M. Galván, A. Vela, and J. L. Gázquez, J. Phys. Chem. 92, 6470 (1988)], giving us an extended local reactivity description of systems based on the frontier spin-up and spin-down molecular orbitals. Degenerate molecular spin orbitals have been explicitly included in our model equations. Computational results for the nitric oxide (NO) and some simple carbene systems are presented in order to test the model. These quantities have been discussed in the context of changes both in charge density and spin density within the context of electron charge transfer or spin-polarization processes.
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Affiliation(s)
- Eduardo Chamorro
- Departamento de Ciencias Químicas, Facultad de Ecología y Recursos Naturales, Universidad Nacional Andrés Bello, Santiago, Chile.
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