|
1
|
Gracheva SV, Tamm NB, Lyssenko KA, Ioffe IN, Lukonina NS, Goryunkov AA. Oxidative cage opening in the C 70 fullerene facilitated by preceding trifluoromethylation. Phys Chem Chem Phys 2024; 26:8038-8042. [PMID: 38379506 DOI: 10.1039/d3cp05480b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Two novel derivatives of the C70 fullerene with 9- and 10-membered cage openings were obtained by means of oxidation and decarbonylation of C70(CF3)8. The major product, C70(O)(CF3)8O2, features a cleaved C-C bond transformed into two carbonyl functions plus an ether bridge. The second product, C69O(CF3)8O, has one of the carbonyls replaced with another ether bridge. We provide a DFT analysis of the possible formation pathways to give the oxidized compounds under the action of pyridine N-oxide.
Collapse
Affiliation(s)
- Sofia V Gracheva
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991, Moscow, Russia.
| | - Nadezhda B Tamm
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991, Moscow, Russia.
| | - Konstantin A Lyssenko
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991, Moscow, Russia.
| | - Ilya N Ioffe
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991, Moscow, Russia.
| | - Natalia S Lukonina
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991, Moscow, Russia.
| | - Alexey A Goryunkov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory, 1-3, 119991, Moscow, Russia.
| |
Collapse
|
|
2
|
Chemistry of difluoromethylenefullerenes. Russ Chem Bull 2023. [DOI: 10.1007/s11172-023-3712-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
|
|
3
|
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.
Collapse
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
| |
Collapse
|