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Leyva-Parra L, Diego L, Inostroza D, Yañez O, Pumachagua-Huertas R, Barroso J, Vásquez-Espinal A, Merino G, Tiznado W. Planar Hypercoordinate Carbons in Alkali Metal Decorated CE 3 2- and CE 2 2- Dianions. Chemistry 2021; 27:16701-16706. [PMID: 34617347 DOI: 10.1002/chem.202102864] [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: 08/06/2021] [Indexed: 11/08/2022]
Abstract
After exploring the potential energy surfaces of Mm CE2 p (E=S-Te, M=Li-Cs, m=2, 3 and p=m-2) and Mn CE3 q (E=S-Te, M=Li-Cs, n=1, 2, q=n-2) combinations, we introduce 38 new global minima containing a planar hypercoordinate carbon atom (24 with a planar tetracoordinate carbon and 14 with a planar pentacoordinate carbon). These exotic clusters result from the decoration of V-shaped CE2 2- and Y-shaped CE3 2- dianions, respectively, with alkali counterions. All these 38 systems fulfill the geometrical and electronic criteria to be considered as true planar hypercoordinate carbon systems. Chemical bonding analyses indicate that carbon is covalently bonded to chalcogens and ionically connected to alkali metals.
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Affiliation(s)
- Luis Leyva-Parra
- Computational and Theoretical Chemistry Group, Departamento de Ciencias Química, Facultad de Ciencias Exactas, Universidad Andrés Bello, República 498, Santiago, Chile.,Universidad Andrés Bello Programa de Doctorado en Fisicoquímica Molecular Facultad de Ciencias Exactas, Santiago, Chile
| | - Luz Diego
- Computational and Theoretical Chemistry Group, Departamento de Ciencias Química, Facultad de Ciencias Exactas, Universidad Andrés Bello, República 498, Santiago, Chile.,Universidad Andrés Bello Programa de Doctorado en Fisicoquímica Molecular Facultad de Ciencias Exactas, Santiago, Chile
| | - Diego Inostroza
- Computational and Theoretical Chemistry Group, Departamento de Ciencias Química, Facultad de Ciencias Exactas, Universidad Andrés Bello, República 498, Santiago, Chile.,Universidad Andrés Bello Programa de Doctorado en Fisicoquímica Molecular Facultad de Ciencias Exactas, Santiago, Chile
| | - Osvaldo Yañez
- Center of New Drugs for Hypertension (CENDHY), 8380494, Santiago, Chile.,Department of Pharmaceutical Science and Technology, School of Chemical and Pharmaceutical Sciences, Universidad de Chile, 8380494, Santiago, Chile
| | - Rodolfo Pumachagua-Huertas
- Laboratorio de Investigación en Química Teórica, Escuela Profesional de Química, Facultad de Ciencias Naturales y Matemáticas, Universidad Nacional Federico Villarreal, Jr. Río Chepén 290, El Agustino, Lima, Perú
| | - Jorge Barroso
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida km. 6 Antigua carretera a Progreso, Apdo. Postal 73, Cordemex, Mérida, Yuc, Mexico
| | - Alejandro Vásquez-Espinal
- Computational and Theoretical Chemistry Group, Departamento de Ciencias Química, Facultad de Ciencias Exactas, Universidad Andrés Bello, República 498, Santiago, Chile
| | - Gabriel Merino
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados, Unidad Mérida km. 6 Antigua carretera a Progreso, Apdo. Postal 73, Cordemex, Mérida, Yuc, Mexico
| | - William Tiznado
- Computational and Theoretical Chemistry Group, Departamento de Ciencias Química, Facultad de Ciencias Exactas, Universidad Andrés Bello, República 498, Santiago, Chile
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Manrique-de-la-Cuba MF, Leyva-Parra L, Inostroza D, Gomez B, Vásquez-Espinal A, Garza J, Yañez O, Tiznado W. Li 8 Si 8 , Li 10 Si 9 , and Li 12 Si 10 : Assemblies of Lithium-Silicon Aromatic Units. Chemphyschem 2021; 22:906-910. [PMID: 33779015 DOI: 10.1002/cphc.202001051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 12/30/2020] [Revised: 03/18/2021] [Indexed: 11/12/2022]
Abstract
We report the global minima structures of Li8 Si8 , Li10 Si9 , and Li12 Si10 systems, in which silicon moieties maintain structural and chemical bonding characteristics similar to those of their building blocks: the aromatic clusters Td -Li4 Si4 and C2v -Li6 Si5 . Electron counting rules, chemical bonding analysis, and magnetic response properties verify the silicon unit's aromaticity persistence. This study demonstrates the feasibility of assembling silicon-based nanostructures from aromatics clusters as building blocks.
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Affiliation(s)
- María Fernanda Manrique-de-la-Cuba
- Centro de Investigación en Ingeniería Molecular, Universidad Católica de Santa María, 04013, Urb. San José S/N, Umacollo, Arequipa, Perú
| | - Luis Leyva-Parra
- Computational and Theoretical Chemistry Group Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, República 498, 8370251, Santiago, Chile.,Programa de Doctorado en Fisicoquímica Molecular, Facultad de Ciencias Exactas, Universidad Andres Bello, Santiago, Chile
| | - Diego Inostroza
- Computational and Theoretical Chemistry Group Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, República 498, 8370251, Santiago, Chile.,Programa de Doctorado en Fisicoquímica Molecular, Facultad de Ciencias Exactas, Universidad Andres Bello, Santiago, Chile
| | - Badhin Gomez
- Centro de Investigación en Ingeniería Molecular, Universidad Católica de Santa María, 04013, Urb. San José S/N, Umacollo, Arequipa, Perú
| | - Alejandro Vásquez-Espinal
- Computational and Theoretical Chemistry Group Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, República 498, 8370251, Santiago, Chile
| | - Jorge Garza
- Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, 09340, México City, México
| | - Osvaldo Yañez
- Computational and Theoretical Chemistry Group Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, República 498, 8370251, Santiago, Chile.,Center of New Drugs for Hypertension (CENDHY), 8370251, Santiago, Chile
| | - William Tiznado
- Computational and Theoretical Chemistry Group Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, República 498, 8370251, Santiago, Chile
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