Noble Gas Binding Ability of an Au(I) Cation Stabilized by a Frustrated Lewis Pair: A DFT Study
The noble gas (Ng) binding ability of a monocationic [(FLP)Au]+ species has been investigated by a computational study. Here, the monocationic [(FLP)Au]+ species is formed by coordination of Au(I) cation with the phosphorous (Lewis base) and the boron (Lewis acid) centers of a frustrated Lewis pair...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2020-07-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fchem.2020.00616/full |
| _version_ | 1818996260470784000 |
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| author | Manas Ghara Pratim Kumar Chattaraj Pratim Kumar Chattaraj |
| author_facet | Manas Ghara Pratim Kumar Chattaraj Pratim Kumar Chattaraj |
| author_sort | Manas Ghara |
| collection | DOAJ |
| description | The noble gas (Ng) binding ability of a monocationic [(FLP)Au]+ species has been investigated by a computational study. Here, the monocationic [(FLP)Au]+ species is formed by coordination of Au(I) cation with the phosphorous (Lewis base) and the boron (Lewis acid) centers of a frustrated Lewis pair (FLP). The bonds involving Au and P, and Au and B atoms in [(FLP)Au]+ are partially covalent in nature as revealed by Wiberg bond index (WBI) values, electron density analysis and energy decomposition analysis (EDA). The zero point energy corrected bond dissociation energy (D0), enthalpy and free energy changes are computed for the dissociation of Au-Ng bonds to assess the Ng binding ability of [(FLP)Au]+ species. The D0 ranges from 6.0 to 13.3 kcal/mol, which increases from Ar to Rn. Moreover, the dissociation of Au-Ng bonds is endothermic as well as endergonic for Ng = Kr-Rn, whereas the same for Ng = Ar is endothermic but exergonic at room temperature. The partial covalent character of the bonds between Au and Ng atoms is demonstrated by their WBI values and electron density analysis. The Ng atoms get slight positive charges of 0.11–0.23 |e|, which indicates some amount of charge transfer takes place from it. EDA demonstrates that electrostatic and orbital interactions have equal contributions to stabilize the Ng-Au bonds in the [(FLP)AuNg]+ complex. |
| first_indexed | 2024-12-20T21:26:55Z |
| format | Article |
| id | doaj.art-39468ffdc5d14c29b04d69befee2bc83 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-20T21:26:55Z |
| publishDate | 2020-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-39468ffdc5d14c29b04d69befee2bc832022-12-21T19:26:07ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462020-07-01810.3389/fchem.2020.00616561977Noble Gas Binding Ability of an Au(I) Cation Stabilized by a Frustrated Lewis Pair: A DFT StudyManas Ghara0Pratim Kumar Chattaraj1Pratim Kumar Chattaraj2Department of Chemistry and Center for Theoretical Studies, Indian Institute of Technology, Kharagpur, IndiaDepartment of Chemistry and Center for Theoretical Studies, Indian Institute of Technology, Kharagpur, IndiaDepartment of Chemistry, Indian Institute of Technology Bombay, Mumbai, IndiaThe noble gas (Ng) binding ability of a monocationic [(FLP)Au]+ species has been investigated by a computational study. Here, the monocationic [(FLP)Au]+ species is formed by coordination of Au(I) cation with the phosphorous (Lewis base) and the boron (Lewis acid) centers of a frustrated Lewis pair (FLP). The bonds involving Au and P, and Au and B atoms in [(FLP)Au]+ are partially covalent in nature as revealed by Wiberg bond index (WBI) values, electron density analysis and energy decomposition analysis (EDA). The zero point energy corrected bond dissociation energy (D0), enthalpy and free energy changes are computed for the dissociation of Au-Ng bonds to assess the Ng binding ability of [(FLP)Au]+ species. The D0 ranges from 6.0 to 13.3 kcal/mol, which increases from Ar to Rn. Moreover, the dissociation of Au-Ng bonds is endothermic as well as endergonic for Ng = Kr-Rn, whereas the same for Ng = Ar is endothermic but exergonic at room temperature. The partial covalent character of the bonds between Au and Ng atoms is demonstrated by their WBI values and electron density analysis. The Ng atoms get slight positive charges of 0.11–0.23 |e|, which indicates some amount of charge transfer takes place from it. EDA demonstrates that electrostatic and orbital interactions have equal contributions to stabilize the Ng-Au bonds in the [(FLP)AuNg]+ complex.https://www.frontiersin.org/article/10.3389/fchem.2020.00616/fullfrustrated lewis pairnoble gas bindingnoble gas-noble metal bondbond dissociation energyenergy decomposition analysis |
| spellingShingle | Manas Ghara Pratim Kumar Chattaraj Pratim Kumar Chattaraj Noble Gas Binding Ability of an Au(I) Cation Stabilized by a Frustrated Lewis Pair: A DFT Study Frontiers in Chemistry frustrated lewis pair noble gas binding noble gas-noble metal bond bond dissociation energy energy decomposition analysis |
| title | Noble Gas Binding Ability of an Au(I) Cation Stabilized by a Frustrated Lewis Pair: A DFT Study |
| title_full | Noble Gas Binding Ability of an Au(I) Cation Stabilized by a Frustrated Lewis Pair: A DFT Study |
| title_fullStr | Noble Gas Binding Ability of an Au(I) Cation Stabilized by a Frustrated Lewis Pair: A DFT Study |
| title_full_unstemmed | Noble Gas Binding Ability of an Au(I) Cation Stabilized by a Frustrated Lewis Pair: A DFT Study |
| title_short | Noble Gas Binding Ability of an Au(I) Cation Stabilized by a Frustrated Lewis Pair: A DFT Study |
| title_sort | noble gas binding ability of an au i cation stabilized by a frustrated lewis pair a dft study |
| topic | frustrated lewis pair noble gas binding noble gas-noble metal bond bond dissociation energy energy decomposition analysis |
| url | https://www.frontiersin.org/article/10.3389/fchem.2020.00616/full |
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