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Effect of External Electric Field on Tetrel Bonding Interactions in (FTF 3 ···FH) Complexes (T = C, Si, Ge, and Sn).

Effect of External Electric Field on Tetrel Bonding Interactions in (FTF 3 ···FH) Complexes (T = C, Si, Ge, and Sn).

Authors :
Ibrahim MAA
Kamel AAK
Soliman MES
Moustafa MF
El-Mageed HRA
Taha F
Mohamed LA
Moussa NAM
Source :
ACS omega [ACS Omega] 2021 Sep 22; Vol. 6 (39), pp. 25476-25485. Date of Electronic Publication: 2021 Sep 22 (Print Publication: 2021).
Publication Year :
2021

Abstract

A quantum chemical study was accomplished on the σ-hole interactions of the barely explored group IV elements, for the first time, in the absence and presence of the positively and negatively directed external electric field (EEF). The analyses of molecular electrostatic potential addressed the occurrence of the σ-hole on all the inspected tetrel atoms, confirming their salient versatility to engage in σ-hole interactions. MP2 energetic findings disclosed the occurrence of favorable σ-hole interactions within the tetrel bonding complexes. The tetrel bonding interactions became stronger in the order of C < Si < Ge < Sn for F-T-F <subscript>3</subscript> ···FH complexes with the largest interaction energy amounting to -19.43 kcal/mol for the optimized F-Sn-F <subscript>3</subscript> ···FH complex under the influence of +0.020 au EEF. The interaction energy conspicuously evolved by boosting the magnitude of the positively directed EEF value and declining the negatively directed EEF one. The decomposition analysis for the interaction energies was also executed in terms of symmetry-adapted perturbation theory, illuminating the dominant electrostatic contribution to all the studied complexes' interactions except carbon-based interactions controlled by dispersion forces. The outcomes that emerged from the current work reported significantly how the direction and strength of the EEF affect the tetrel-bonding interactions, leading to further improvements in the forthcoming studies of supramolecular chemistry and materials science.<br />Competing Interests: The authors declare no competing financial interest.<br /> (© 2021 The Authors. Published by American Chemical Society.)

Details

Language :
English
ISSN :
2470-1343
Volume :
6
Issue :
39
Database :
MEDLINE
Journal :
ACS omega
Publication Type :
Academic Journal
Accession number :
34632205
Full Text :
https://doi.org/10.1021/acsomega.1c03461