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Kanti Guha A. Inter-Alkali-Metal Dative Bond in the MMN 3 - (M=Alkali Metal) Cluster. Chemphyschem 2023; 24:e202200935. [PMID: 36717761 DOI: 10.1002/cphc.202200935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/24/2023] [Accepted: 01/30/2023] [Indexed: 02/01/2023]
Abstract
Alkali metals are generally Lewis acids. On the contrary, Lewis basic character of alkali metals forming donor - acceptor complexes is a very rare phenomenon. In this contribution, I have theoretically designed an anionic cluster MMN3 - (M=alkali metals) on the basis of experimentally known reagent, alkali salt of azide ion MN3 , which shows unprecedented M:- →M donor-acceptor interaction. To the best of author's knowledge, the characterization of such donor-acceptor interaction among alkali metals is unprecedented. Formation of the 2c-2e donor-acceptor bonds have been confirmed by quantum theory of atoms in molecules and electron localization function analyses. The calculated bond dissociation energies are significant suggesting their possible spectroscopic identification.
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Affiliation(s)
- Ankur Kanti Guha
- Advanced Computational Chemistry Centre, Cotton University, Panbazar, Guwahati, Assam, 781001, India
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2
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Kalita AJ, Sarmah K, Borah RR, Yashmin F, Mazumder LJ, Purkayastha SK, Das K, Dutta T, Guha AK. Missing Recipe in the Na‐B Bond in NaBH
3
–
Cluster. ChemistrySelect 2022. [DOI: 10.1002/slct.202201536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Amlan J. Kalita
- Advanced Computational Chemistry Centre Cotton University Panbazar Guwahati Assam India- 781001
| | - Kangkan Sarmah
- Advanced Computational Chemistry Centre Cotton University Panbazar Guwahati Assam India- 781001
| | - Ritam R. Borah
- Advanced Computational Chemistry Centre Cotton University Panbazar Guwahati Assam India- 781001
| | - Farnaz Yashmin
- Advanced Computational Chemistry Centre Cotton University Panbazar Guwahati Assam India- 781001
| | - Lakhya J. Mazumder
- Advanced Computational Chemistry Centre Cotton University Panbazar Guwahati Assam India- 781001
| | | | - Kanwaki Das
- Advanced Computational Chemistry Centre Cotton University Panbazar Guwahati Assam India- 781001
| | - Trisha Dutta
- Advanced Computational Chemistry Centre Cotton University Panbazar Guwahati Assam India- 781001
| | - Ankur K. Guha
- Advanced Computational Chemistry Centre Cotton University Panbazar Guwahati Assam India- 781001
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Yang Q, Li Q, Scheiner S. Diboron Bonds Between BX 3 (X=H, F, CH 3 ) and BYZ 2 (Y=H, F; Z=CO, N 2 , CNH). Chemphyschem 2021; 22:1461-1469. [PMID: 34089563 DOI: 10.1002/cphc.202100332] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/27/2021] [Indexed: 11/12/2022]
Abstract
The ability of B atoms on two different molecules to engage with one another in a noncovalent diboron bond is studied by ab initio calculations. Due to electron donation from its substituents, the trivalent B atom of BYZ2 (Z=CO, N2 , and CNH; Y=H and F) has the ability to in turn donate charge to the B of a BX3 molecule (X=H, F, and CH3 ), thus forming a B⋅⋅⋅B diboron bond. These bonds are of two different strengths and character. BH(CO)2 and BH(CNH)2 , and their fluorosubstituted analogues BF(CO)2 and BF(CNH)2 , engage in a typical noncovalent bond with B(CH3 )3 and BF3 , with interaction energies in the 3-8 kcal/mol range. Certain other combinations result in a much stronger diboron bond, in the 26-44 kcal/mol range, and with a high degree of covalent character. Bonds of this type occur when BH3 is added to BH(CO)2 , BH(CNH)2 , BH(N2 )2 , and BF(CO)2 , or in the complexes of BH(N2 )2 with B(CH3 )3 and BF3 . The weaker noncovalent bonds are held together by roughly equal electrostatic and dispersion components, complemented by smaller polarization energy, while polarization is primarily responsible for the stronger ones.
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Affiliation(s)
- Qingqing Yang
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, P. R. China
| | - Qingzhong Li
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai, 264005, P. R. China
| | - Steve Scheiner
- Department of Chemistry and Biochemistry, Utah State University, Logan, UT, 84322-0300, USA
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Radenković S, Shaik SS, Braïda B. Na⋅⋅⋅B Bond in NaBH
3
−
: Solving the Conundrum. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Sason S. Shaik
- Institute of Chemistry The Hebrew University of Jerusalem 9190401 Jerusalem Israel
| | - Benoît Braïda
- Sorbonne Université Laboratoire de Chimie Théorique 75005 Paris France
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Affiliation(s)
- Ricardo Pino‐Rios
- Laboratorio de Química teórica Facultad de Química y Biología Universidad de Santiago de Chile (USACH) Av. Libertador Bernardo O'Higgins 3363 Santiago, Estación Central, Región Metropolitana Chile
| | - Diego Inostroza
- Universidad Andres Bello Programa de Doctorado en Fisicoquímica Molecular Facultad de Ciencias Exactas Santiago Chile
- Computational and Theoretical Chemistry Group Departamento de Ciencias Químicas Facultad de Ciencias Exactas Universidad Andres Bello República 498 Santiago Chile
| | - William Tiznado
- Universidad Andres Bello Programa de Doctorado en Fisicoquímica Molecular Facultad de Ciencias Exactas Santiago Chile
- Computational and Theoretical Chemistry Group Departamento de Ciencias Químicas Facultad de Ciencias Exactas Universidad Andres Bello República 498 Santiago Chile
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Abstract
Bonding in the recently synthesized NaBH3 - cluster is investigated using the high level Valence Bond BOVB method. Contrary to earlier conclusions, the Na-B bond is found to be neither a genuine dative bond, nor a standard polar-covalent bond at equilibrium. It is rather revealed as a split and polarized weakly coupled electron-pair, which allows this cluster to be more effectively stabilized by a combination of (major) dipole-dipole electrostatic interaction and (secondary) resonant one-electron bonding mechanism. Our analysis of this unprecedented bonding situation extends to similar clusters, and the VB model unifies and articulates the previously published variegated views on this exotic "bond".
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Affiliation(s)
- Slavko Radenković
- University of Kragujevac, Faculty of Science, 34000, Kragujevac, Serbia
| | - Sason S Shaik
- Institute of Chemistry, The Hebrew University of Jerusalem, 9190401, Jerusalem, Israel
| | - Benoît Braïda
- Sorbonne Université, Laboratoire de Chimie Théorique, 75005, Paris, France
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Pino-Rios R, Inostroza D, Tiznado W. Neither too Classic nor too Exotic: One-Electron Na⋅B Bond in NaBH 3 - Cluster. Angew Chem Int Ed Engl 2021; 60:12747-12753. [PMID: 33876517 DOI: 10.1002/anie.202101403] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Indexed: 12/17/2022]
Abstract
It is here reported that the NaBH3 - cluster exhibits a Na⋅B one-electron bond, a well-established type of electron-deficient bonding in the literature. The topological analysis of the electron localization function, at the correlated level, reveals that Na- , when approaching the bonding distance, fairly distributes its valence electron pair between two lobes. One of these electrons is used to bond with BH3 , which participates through its boron empty p-orbital. Furthermore, the bonding situation of LiBH3 - , KBH3 - , MgBH3 , and CaBH3 global minima structures are similar to that of NaBH3 - , extending the family of these new one-electron bond systems with biradicaloid character.
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Affiliation(s)
- Ricardo Pino-Rios
- Laboratorio de Química teórica, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Av. Libertador Bernardo O'Higgins 3363, Santiago, Estación Central, Región Metropolitana, Chile
| | - Diego Inostroza
- Universidad Andres Bello, Programa de Doctorado en Fisicoquímica Molecular, Facultad de Ciencias Exactas, Santiago, Chile.,Computational and Theoretical Chemistry Group, Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, República 498, Santiago, Chile
| | - William Tiznado
- Universidad Andres Bello, Programa de Doctorado en Fisicoquímica Molecular, Facultad de Ciencias Exactas, Santiago, Chile.,Computational and Theoretical Chemistry Group, Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, República 498, Santiago, Chile
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Salvador P, Vos E, Corral I, Andrada DM. Über die klassische Elektronenpaar‐ und die dative Bindung hinaus: Die Spin‐polarisierte Bindung. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010948] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Pedro Salvador
- Institut de Química Computacional i Catàlisi i Departament de Química Universitat de Girona c/M Aurelia Capmany 69 17003 Girona Spanien
| | - Eva Vos
- Departamento de Química Facultad de Ciencias Módulo 13, and Institute of Advanced Chemical Sciences (IadChem) Universidad Autónoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco 28049 Madrid Spanien
| | - Inés Corral
- Departamento de Química Facultad de Ciencias Módulo 13, and Institute of Advanced Chemical Sciences (IadChem) Universidad Autónoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco 28049 Madrid Spanien
| | - Diego M. Andrada
- Faculty of Natural Sciences and Technology Department of Chemistry Saarland University 66123 Saarbrücken Deutschland
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Salvador P, Vos E, Corral I, Andrada DM. Beyond the Classical Electron-Sharing and Dative Bond Picture: Case of the Spin-Polarized Bond. Angew Chem Int Ed Engl 2020; 60:1498-1502. [PMID: 32866305 PMCID: PMC7839703 DOI: 10.1002/anie.202010948] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 08/29/2020] [Indexed: 11/12/2022]
Abstract
Chemical bonds are traditionally assigned as electron-sharing or donor-acceptor/dative. External criteria such as the nature of the dissociation process, energy partitioning schemes, or quantum chemical topology are invoked to assess the bonding situation. However, for systems with marked multi-reference character, this binary categorization might not be precise enough to render the bonding properties. A third scenario can be foreseen: spin polarized bonds. To illustrate this, the case of a NaBH3 - cluster is presented. According to the analysis NaBH3 - exhibits a strong diradical character and cannot be classified as either electron-sharing or a dative bond. Elaborated upon are the common problems of popular bonding descriptions. Additionally, a simple model, based on the bond order and local spin indicators, which discriminates between all three bonding situations, is provided.
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Affiliation(s)
- Pedro Salvador
- Institut de Química Computacional i Catàlisi i Departament de Química, Universitat de Girona, c/M Aurelia Capmany 69, 17003, Girona, Spain
| | - Eva Vos
- Departamento de Química, Facultad de Ciencias, Módulo 13, and Institute of Advanced Chemical Sciences (IadChem), Universidad Autónoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco, 28049, Madrid, Spain
| | - Inés Corral
- Departamento de Química, Facultad de Ciencias, Módulo 13, and Institute of Advanced Chemical Sciences (IadChem), Universidad Autónoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco, 28049, Madrid, Spain
| | - Diego M Andrada
- Faculty of Natural Sciences and Technology, Department of Chemistry, Saarland University, 66123, Saarbrücken, Germany
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Abstract
A newly introduced Na-B bond in NaBH3 - has been a challenge for the chemical bonding community. Here, a series of MBH3 - (M=Li, Na, K) species and NaB(CN)3 - are studied within the context of quantum chemical topology approaches. The analyses suggest that M-B interaction cannot be classified as an ordinary covalent, dative, or even simple ionic interaction. The interactions are controlled by coulombic forces between the metals and the substituents on boron, for example, H or CN, more than the direct M-B interaction. On the other hand, while the characteristics of the (3, -1) critical points of the bonds are comparable to weak hydrogen bonds, not covalent bonds, the metal and boron share a substantial sum of electrons. To the best of the author's knowledge, the characteristics of these bonds are unprecedented among known molecules. Considering all paradoxical properties of these bonds, they are herein described as ionic-enforced covalent bonds.
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Affiliation(s)
- Cina Foroutan-Nejad
- Department of Chemistry, Faculty of Science, Masaryk University & National Centre for Biomolecular Research, Faculty of Science, Masaryk University, 62500, Brno, Czech Republic
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Affiliation(s)
- Cina Foroutan‐Nejad
- Department of Chemistry Faculty of Science Masaryk University & National Centre for Biomolecular Research Faculty of Science Masaryk University 62500 Brno Czech Republic
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