Cyclic Six-Atomic Boron-Nitrides: Quantum-Chemical Consideration by Ab Initio CCSD(T) Method

By means of the CCSD(T)/6-311++G(df,p) and G4 quantum-chemical calculation methods, the calculation of the molecular and electronic structures of boron–nitrogen compounds having the B<sub>3</sub>N<sub>3</sub> composition was carried out and its results were discussed. It was...

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Main Authors: Denis V. Chachkov, Oleg V. Mikhailov
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Quantum Reports
Subjects:
Online Access:https://www.mdpi.com/2624-960X/4/3/25
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author Denis V. Chachkov
Oleg V. Mikhailov
author_facet Denis V. Chachkov
Oleg V. Mikhailov
author_sort Denis V. Chachkov
collection DOAJ
description By means of the CCSD(T)/6-311++G(df,p) and G4 quantum-chemical calculation methods, the calculation of the molecular and electronic structures of boron–nitrogen compounds having the B<sub>3</sub>N<sub>3</sub> composition was carried out and its results were discussed. It was noted that seven isomeric forms with different space structures can exist; wherein, the most stable form is a distorted flat hexagon with alternating B and N atoms, with both B and N atoms forming regular triangles, but with different side lengths. The values of geometric parameters of molecular structures in each of these compounds are presented. Also, the key thermodynamic parameters of formation (enthalpy Δ<sub>f</sub><i>H</i><sup>0</sup>, entropy <i>S</i><sup>0</sup>, Gibbs’ energy Δ<sub>f</sub><i>G</i><sup>0</sup>) and relative total energies of these compounds are calculated.
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spelling doaj.art-95d40e88409e445cbc27aafceb21ab832023-11-23T18:40:06ZengMDPI AGQuantum Reports2624-960X2022-09-014335136110.3390/quantum4030025Cyclic Six-Atomic Boron-Nitrides: Quantum-Chemical Consideration by Ab Initio CCSD(T) MethodDenis V. Chachkov0Oleg V. Mikhailov1Kazan Department of Joint Supercomputer Center of Russian Academy of Sciences–Branch of Federal Scientific Center “Scientific Research Institute for System Analysis of the RAS”, Lobachevskii Street 2/31, Kazan 420111, RussiaDepartment of Analytical Chemistry, Certification and Quality Management, Kazan National Research Technological University, K. Marx Street 68, Kazan 420015, RussiaBy means of the CCSD(T)/6-311++G(df,p) and G4 quantum-chemical calculation methods, the calculation of the molecular and electronic structures of boron–nitrogen compounds having the B<sub>3</sub>N<sub>3</sub> composition was carried out and its results were discussed. It was noted that seven isomeric forms with different space structures can exist; wherein, the most stable form is a distorted flat hexagon with alternating B and N atoms, with both B and N atoms forming regular triangles, but with different side lengths. The values of geometric parameters of molecular structures in each of these compounds are presented. Also, the key thermodynamic parameters of formation (enthalpy Δ<sub>f</sub><i>H</i><sup>0</sup>, entropy <i>S</i><sup>0</sup>, Gibbs’ energy Δ<sub>f</sub><i>G</i><sup>0</sup>) and relative total energies of these compounds are calculated.https://www.mdpi.com/2624-960X/4/3/25B<sub>3</sub>N<sub>3</sub>molecular structurethermodynamic parametersquantum-chemical calculationCCSD(T) methodG4
spellingShingle Denis V. Chachkov
Oleg V. Mikhailov
Cyclic Six-Atomic Boron-Nitrides: Quantum-Chemical Consideration by Ab Initio CCSD(T) Method
Quantum Reports
B<sub>3</sub>N<sub>3</sub>
molecular structure
thermodynamic parameters
quantum-chemical calculation
CCSD(T) method
G4
title Cyclic Six-Atomic Boron-Nitrides: Quantum-Chemical Consideration by Ab Initio CCSD(T) Method
title_full Cyclic Six-Atomic Boron-Nitrides: Quantum-Chemical Consideration by Ab Initio CCSD(T) Method
title_fullStr Cyclic Six-Atomic Boron-Nitrides: Quantum-Chemical Consideration by Ab Initio CCSD(T) Method
title_full_unstemmed Cyclic Six-Atomic Boron-Nitrides: Quantum-Chemical Consideration by Ab Initio CCSD(T) Method
title_short Cyclic Six-Atomic Boron-Nitrides: Quantum-Chemical Consideration by Ab Initio CCSD(T) Method
title_sort cyclic six atomic boron nitrides quantum chemical consideration by ab initio ccsd t method
topic B<sub>3</sub>N<sub>3</sub>
molecular structure
thermodynamic parameters
quantum-chemical calculation
CCSD(T) method
G4
url https://www.mdpi.com/2624-960X/4/3/25
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AT olegvmikhailov cyclicsixatomicboronnitridesquantumchemicalconsiderationbyabinitioccsdtmethod