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Brotsman VA, Lukonina NS, Malkin NA, Rybalchenko AV, Belov NM, Goryunkov AA. Difluoromethylenation of fullerene C 70 provides isomeric diversity and availability of equatorial [5,6]-homofullerene C 70(CF 2). Phys Chem Chem Phys 2022; 24:16816-16826. [DOI: 10.1039/d2cp01922a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report synthesis, isolation, and spectroscopic characterization of the novel [5,6]-open C70(CF2) isomer III along with the already known [6,6]-closed and [6,6]-open C70(CF2) isomers I and II. The compounds were...
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Gracheva SV, Yankova TS, Kosaya MP, Brotsman VA, Ioffe IN, Lukonina NS, Goryunkov AA. Reversibly switchable methanofullerene by photoexcitation and reduction. Phys Chem Chem Phys 2022; 24:26998-27003. [DOI: 10.1039/d2cp03945a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A cyclopropanated derivative of the trifluoromethylated fullerene Cs-C70(CF3)8 demonstrates reversible switching behavior triggered by excited state electron transfer or by negative charging.
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Affiliation(s)
- Sofia V. Gracheva
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1–3, Moscow 119991, Russia
| | - Tatiana S. Yankova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1–3, Moscow 119991, Russia
| | - Maria P. Kosaya
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1–3, Moscow 119991, Russia
| | - Victor A. Brotsman
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1–3, Moscow 119991, Russia
| | - Ilya N. Ioffe
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1–3, Moscow 119991, Russia
| | - Natalia S. Lukonina
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1–3, Moscow 119991, Russia
| | - Alexey A. Goryunkov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1–3, Moscow 119991, Russia
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Lukonina NS, Semivrazhskaya OO, Apenova MG, Belov NM, Troyanov SI, Goryunkov AA. CF
2
‐Functionalized Trifluoromethylated Fullerene C
70
(CF
3
)
8
(CF
2
): Structure, Electronic Properties, and Spontaneous Oxidation at the Bridgehead Carbon Atoms. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Natalia S. Lukonina
- Department of ChemistryLomonosov Moscow State University Leninskie Gory, 1–3 119991 Moscow Russia
| | - Olesya O. Semivrazhskaya
- Department of ChemistryLomonosov Moscow State University Leninskie Gory, 1–3 119991 Moscow Russia
| | - Marina G. Apenova
- Department of ChemistryLomonosov Moscow State University Leninskie Gory, 1–3 119991 Moscow Russia
| | - Nikita M. Belov
- Department of ChemistryLomonosov Moscow State University Leninskie Gory, 1–3 119991 Moscow Russia
| | - Sergey I. Troyanov
- Department of ChemistryLomonosov Moscow State University Leninskie Gory, 1–3 119991 Moscow Russia
| | - Alexey A. Goryunkov
- Department of ChemistryLomonosov Moscow State University Leninskie Gory, 1–3 119991 Moscow Russia
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Semivrazhskaya O, Romero-Rivera A, Aroua S, Troyanov SI, Garcia-Borràs M, Stevenson S, Osuna S, Yamakoshi Y. Structures of Gd 3N@C 80 Prato Bis-Adducts: Crystal Structure, Thermal Isomerization, and Computational Study. J Am Chem Soc 2019; 141:10988-10993. [PMID: 31266302 DOI: 10.1021/jacs.9b05603] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The structures of two bis-ethylpyrrolidinoadducts of Gd3N@Ih-C80, obtained by regioselective 1,3-dipolar cycloadditions, were elucidated by single crystal X-ray, visible-near infrared (vis-NIR) spectra, studies on their thermal isomerization, and theoretical calculations. The structure of the minor-bis-adduct reveals a C2-symmetric carbon cage with [6,6][6,6]-addition sites and with an endohedral Gd3N cluster that is completely flattened. This is the first example of a crystal structure of Gd3N@Ih-C80 derivatives. The structure of the major-bis-adduct was inferred by the vis-NIR spectrum being corresponded to the structure of a previously reported major-bis-adduct of Y3N@Ih-C80 known to have an asymmetric [6,6][6,6]-structure. Based on experimental results showing that the minor-bis-adduct of Gd3N@Ih-C80 isomerized to the major-adduct, a possible second addition site was elucidated with support from density functional theory calculations.
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Affiliation(s)
- Olesya Semivrazhskaya
- Laboratorium für Organische Chemie, ETH Zürich , Vladimir-Prelog-Weg 3 , CH8093 Zürich , Switzerland
| | - Adrian Romero-Rivera
- CompBioLab, Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química , Universitat de Girona , Campus Montilivi, 17071 Girona , Catalonia , Spain
| | - Safwan Aroua
- Laboratorium für Organische Chemie, ETH Zürich , Vladimir-Prelog-Weg 3 , CH8093 Zürich , Switzerland
| | - Sergey I Troyanov
- Department of Chemistry , Moscow State University , Leninskie gory, 119991 Moscow , Russia
| | - Marc Garcia-Borràs
- CompBioLab, Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química , Universitat de Girona , Campus Montilivi, 17071 Girona , Catalonia , Spain
| | - Steven Stevenson
- Department of Chemistry , Purdue University Fort Wayne , Fort Wayne , Indiana 46805 , United States
| | - Sílvia Osuna
- CompBioLab, Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química , Universitat de Girona , Campus Montilivi, 17071 Girona , Catalonia , Spain.,ICREA , Pg. Lluís Companys 23 , 08010 Barcelona , Catalonia , Spain
| | - Yoko Yamakoshi
- Laboratorium für Organische Chemie, ETH Zürich , Vladimir-Prelog-Weg 3 , CH8093 Zürich , Switzerland
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