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Density Functional Theory Application on Chemical Calculation

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (20 December 2023) | Viewed by 3963

Special Issue Editor


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Guest Editor
Kazan Department of Joint Supercomputer Center of Russian Academy of Sciences – Branch of Federal Scientific Center "Scientific Research Institute for System Analysis of the RAS”, Moscow, Russia
Interests: quantum chemistry; mechanisms of chemical reactions; nitro compounds and explosives; organoelement compounds; metal clusters and transition metal complexes

Special Issue Information

Dear Colleagues,

Chemical calculations—methods of quantum chemistry—have become an integral part of most chemical research. Chemical calculations make it possible to study chemical processes in detail at the molecular level, to determine ways to improve the required properties and characteristics of chemicals and chemical processes, thereby increasing the effectiveness of experimental research and contributing to scientific and technological progress in general. Modeling chemical processes using an exact numerical solution of the Schrodinger equation for all elementary particles (electrons and nucleons) in a reasonable time is currently impossible. Therefore, various approximations are used that allow us to achieve reliable results without significant loss of their reliability. Now, the methods of density functional theory, among all modern methods of quantum chemistry, have an optimal ratio of modeling accuracy and the amount of computing resources spent. This has contributed to their widest dissemination as a tool of theoretical research. Of course, the methods of density functional theory have their limits of application. For example, they are not systematically improved, which is why it is impossible to unambiguously predict which functionality will lead to a smaller error in the calculation. Therefore, the choice of a specific DFT functional is either based on comparison with data obtained using methods of more accurate theories, or most often based on published results of DFT calculations by other scientists for similar objects and reactions. In this Special Issue of "Density Functional Theory Application on Chemical Calculation”, we invite you to publish the results of studies in which the main tool was the methods of density functional theory and which examines the applicability of these methods to specific chemical objects, their accuracy for specific physicochemical properties, and more. Full documents, messages and reviews are welcome.

Dr. Denis V. Chachkov
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • density functional theory
  • time-dependent DFT
  • quantum chemistry
  • chemical calculation
  • mechanisms of chemical reactions
  • structure and properties of chemicals
  • electronic structure
  • theoretical research
  • novel materials

Published Papers (3 papers)

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Editorial

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6 pages, 209 KiB  
Editorial
Thematic Exordium for Special Issue “Density Functional Theory Application on Chemical Calculation”
by Denis V. Chachkov and Oleg V. Mikhailov
Materials 2023, 16(7), 2904; https://doi.org/10.3390/ma16072904 - 6 Apr 2023
Viewed by 960
Abstract
The history of quantum chemistry dates back to 1926, when the German physicist Erwin Schrödinger, in his classical works [...] Full article
(This article belongs to the Special Issue Density Functional Theory Application on Chemical Calculation)

Research

Jump to: Editorial

12 pages, 2194 KiB  
Article
DFT Method Used for Prediction of Molecular and Electronic Structures of Mn(VI) Macrocyclic Complexes with Porhyrazine/Phthalocyanine and Two Oxo Ligands
by Denis V. Chachkov and Oleg V. Mikhailov
Materials 2023, 16(6), 2394; https://doi.org/10.3390/ma16062394 - 16 Mar 2023
Cited by 2 | Viewed by 1194
Abstract
By using the data of the DFT quantum chemical calculation in the OPBE/TZVP and B3PW91/TZVP levels, the possibility of the existence of a manganese(VI) heteroligand complex containing porphyrazine or its tetra[benzo] derivative (phthalocyanine) and two oxygen (O2−) ligands, which is still [...] Read more.
By using the data of the DFT quantum chemical calculation in the OPBE/TZVP and B3PW91/TZVP levels, the possibility of the existence of a manganese(VI) heteroligand complex containing porphyrazine or its tetra[benzo] derivative (phthalocyanine) and two oxygen (O2−) ligands, which is still unknown for this element, is shown. The parameters of the molecular structure, multiplicity of the ground state, NBO analysis data and standard thermodynamic parameters (enthalpy ΔH0f, entropy S0f and Gibbs’s energy ΔG0f of formation) of each of these metal macrocyclic compounds are presented. Additionally, it is noted that, based on the totality of structural data obtained by the above versions of the DFT method, the existence of a similar complex of manganese with di[benzo] derivative of porhyrazine and two oxygen (O2−) ligands seems doubtful. Full article
(This article belongs to the Special Issue Density Functional Theory Application on Chemical Calculation)
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9 pages, 1807 KiB  
Article
Fluorine-Modulated Electronic Structure and Atomic Bonding of the Titanium Surface
by Lei Li and Haihua Huang
Materials 2022, 15(23), 8492; https://doi.org/10.3390/ma15238492 - 29 Nov 2022
Viewed by 1075
Abstract
The fluorine-adsorption-induced local bond relaxation and valence-energy-state evolution of the Ti(0001) surface were examined through density functional theory calculations. The predicted bond–band–barrier (3 B) correlation notation framework for the interaction of the fluorine adsorbate with Ti atoms formed a tetrahedral structure through the [...] Read more.
The fluorine-adsorption-induced local bond relaxation and valence-energy-state evolution of the Ti(0001) surface were examined through density functional theory calculations. The predicted bond–band–barrier (3 B) correlation notation framework for the interaction of the fluorine adsorbate with Ti atoms formed a tetrahedral structure through the creation of four valence density-of-state features, namely bonding electron pairs, nonbonding lone pairs, holes, and antibonding dipoles. The bonding states resulted in the passivation of metal Ti surfaces, the formation of Tip dipoles and Ti+/p H-like bonds modulated the work function of the Ti(0001) surface, and the conversion of metallic Ti to semiconducting titanium fluoride by the holes. The findings of this study confirm the universal applicability of the 3 B correlation notation in the dynamics of fluorine chemisorption and the associated valence electrons involved in fluorination. Full article
(This article belongs to the Special Issue Density Functional Theory Application on Chemical Calculation)
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