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Yu X, Wu P, Yuan Q, Yan C, Li D, Cheng L. Unraveling the Aromatic Rule of Cyclic Superatomic Molecules in π-Conjugated Compounds. J Phys Chem A 2023; 127:7487-7495. [PMID: 37669444 DOI: 10.1021/acs.jpca.3c03872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
The aromaticity of π-conjugated compounds has long been a confusing issue. Based on a recently emerged two-dimensional (2D) superatomic-molecule theory, a unified rule was built to decipher the aromaticity of cyclic superatomic molecules of π-conjugated compounds from the chemical bonding perspective. Herein, a series of planar [n]helicenes and [n]circulenes, composed of benzene, thiophene, or furfuran, are systemically studied and seen as superatomic molecules ◊On-2◊F2 or ◊On, where superatoms ◊F and ◊O denote π-conjugated units with 5 and 4 π electrons, respectively. The ascertained superatomic Lewis structures intuitively display aromaticity with each basic unit meeting the superatomic sextet rule of benzene, similar to classical valence bond theory, which is favored by the synthesized complex π-conjugated compounds comprising different numbers and kinds of subrings. The evolutionary trend of ring currents and chemical bonding suggests a local ribbon-like aromaticity in these π-conjugated compounds. Moreover, nonplanar helical π-conjugated compounds have the potential to evolve into spring-like periodic materials with excellent physical properties.
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Affiliation(s)
- Xinlei Yu
- Department of Chemistry, Anhui University, Hefei 230601, China
| | - Panpan Wu
- Department of Chemistry, Anhui University, Hefei 230601, China
| | - Qinqin Yuan
- Department of Chemistry, Anhui University, Hefei 230601, China
| | - Chen Yan
- Department of Chemistry, Anhui University, Hefei 230601, China
| | - Dan Li
- Department of Chemistry, Anhui University, Hefei 230601, China
| | - Longjiu Cheng
- Department of Chemistry, Anhui University, Hefei 230601, China
- Key Laboratory of Functional Inorganic Materials of Anhui Province, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University), Ministry of Education, Hefei 230601, China
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Brotsman VA, Tamm NB, Markov VY, Lyssenko KA, Troyanov SI. Fused-Pentagon Carbon Cages in Chloro and Trifluoromethyl Derivatives of C 60: Non-IPR 1809C 60Cl 8, 1806C 60(CF 3) 14, and Nonclassical C 60( NC)Cl 14. Inorg Chem 2022; 61:18346-18349. [DOI: 10.1021/acs.inorgchem.2c03335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Victor A. Brotsman
- Chemistry Department, Moscow State University, Leninskie gory, 119991 Moscow, Russia
| | - Nadezhda B. Tamm
- Chemistry Department, Moscow State University, Leninskie gory, 119991 Moscow, Russia
| | - Vitaliy Yu. Markov
- Chemistry Department, Moscow State University, Leninskie gory, 119991 Moscow, Russia
| | | | - Sergey I. Troyanov
- Chemistry Department, Moscow State University, Leninskie gory, 119991 Moscow, Russia
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Alshehri S, Alsubaiyel AM, Alzhrani RM, Alatawi AD, Ahmed Algarni M, Abduljabbar MH, Kamal MM, Ng Kay Lup A, Sani Sarjad M, Lutfor Rahman M, A.S.Abourehab M. C60 Fullerene as a novel sensor for SCN- detection: A computational study. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Lo R, Lamanec M, Wang W, Manna D, Bakandritsos A, Dračínský M, Zbořil R, Nachtigallová D, Hobza P. Structure-directed formation of the dative/covalent bonds in complexes with C 70piperidine. Phys Chem Chem Phys 2021; 23:4365-4375. [PMID: 33589890 DOI: 10.1039/d0cp06280d] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The combined experimental-computational study has been performed to investigate the complexes formed between C70 carbon allotrope and piperidine. The results of FT-IR, H-NMR, and C-NMR measurements, together with the calculations based on the DFT approach and molecular dynamics simulations, prove the existence of dative/covalent bonding in C70piperidine complexes. The dative bond forms not only at the region of five- and six-membered rings, observed previously with C60, but also at the region formed of six-membered rings. The structure, i.e., nonplanarity, explains the observed dative bond formation. New findings on the character of interaction of secondary amines with C70 bring new aspects for the rational design of modified fullerenes and their applications in electrocatalysis, spintronics, and energy storage.
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Affiliation(s)
- Rabindranath Lo
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo Námstí 542/2, 16000 Prague, Czech Republic. and CATRIN, Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Maximilián Lamanec
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo Námstí 542/2, 16000 Prague, Czech Republic. and Department of Physical Chemistry, Palacký University Olomouc, Tr. 17 listopadu 12, 771 46 Olomouc, Czech Republic
| | - Weizhou Wang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471934, China
| | - Debashree Manna
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo Námstí 542/2, 16000 Prague, Czech Republic. and CATRIN, Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Aristides Bakandritsos
- CATRIN, Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic and Regional Centre of Advanced Technologies and Materials, Palacký University, Olomouc, Šlechtitelů 27, 78371, Czech Republic
| | - Martin Dračínský
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo Námstí 542/2, 16000 Prague, Czech Republic.
| | - Radek Zbořil
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo Námstí 542/2, 16000 Prague, Czech Republic. and CATRIN, Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic and Regional Centre of Advanced Technologies and Materials, Palacký University, Olomouc, Šlechtitelů 27, 78371, Czech Republic and Nanotechnology Centre, VŠB-Technical University of Ostrava, 17. Listopadu 2172/15, 708 00 Ostrava-Poruba, Czech Republic
| | - Dana Nachtigallová
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo Námstí 542/2, 16000 Prague, Czech Republic. and CATRIN, Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
| | - Pavel Hobza
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo Námstí 542/2, 16000 Prague, Czech Republic. and CATRIN, Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic
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Escayola S, Poater A, Muñoz-Castro A, Solà M. An unprecedented π-electronic circuit involving an odd number of carbon atoms in a grossly warped non-planar nanographene. Chem Commun (Camb) 2021; 57:3087-3090. [DOI: 10.1039/d1cc00593f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The formation of π-aromatic circuits along a grossly warped nanographene, C80H30, containing five- and seven-membered rings inserted into a six-membered mesh, reveals global π-circuits at the edge of the backbone.
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Affiliation(s)
- Sílvia Escayola
- Institute of Computational Chemistry and Catalysis and Department of Chemistry
- University of Girona
- 17003 Girona
- Spain
- Donostia International Physics Center (DIPC)
| | - Albert Poater
- Institute of Computational Chemistry and Catalysis and Department of Chemistry
- University of Girona
- 17003 Girona
- Spain
| | - Alvaro Muñoz-Castro
- Grupo de Química Inorgánica y Materiales Moleculares
- Facultad de Ingeniería
- Universidad Autónoma de Chile
- El Llano Subercaseaux 2801
- Chile
| | - Miquel Solà
- Institute of Computational Chemistry and Catalysis and Department of Chemistry
- University of Girona
- 17003 Girona
- Spain
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