Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 47, Pages 19401-19408Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja307341g
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Funding
- Ministry of Education, Culture, Sports, Science, and Technology of Japan [20108001, 20245006, 24350019, 20036008, 20038007]
- JST
- MINECO [PLE-2009-0039, PIB2010JP-00196]
- Deutsche Forschungsgemeinschaft
- FCI
- Office of Basic Energy Sciences of the U.S. Department of Energy
- MINECO of Spain [PIB2010JP-00196, CTQ2011-24652, Consolider-Ingenio 2010C-07-25200]
- CAM (MADRISOLAR Project) [P-PPQ-000225-0505]
- Grants-in-Aid for Scientific Research [20108001, 24750006, 20108002] Funding Source: KAKEN
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An endohedral metallofullerene, La-2@C-80, is covalently linked to the strong electron acceptor 11,11,12,12-tetracyano-9,10-antha-p- quinodimethane (TCAQ) by means of the Prato reaction, affording two different [5,6]-metallofulleropyrrolidines namely 1a and 2a, 1a and 2a were isolated and fully characterized by means of MALDI-TOF mass, UV-Vis-NIR absorption and NMR spectroscopies. In addition, cyclic voltammetry (CV) and differential pulse voltammetry (DPV) corroborated the unique redox character of 2a, that is the presence of the electron donating La-2@C-80 and the electron accepting TCAQ, Although a weak electronic coupling 'dictates the interactions between La-2@C-80 and TCAQ in the ground state, time resolved transient absorption experiments reveal that in the excited (i.e., pi-pi* centered at La-2@C-80) the unprecedented formation of the (La-2@C-80)(center dot+)-(TCAQ)(center dot-) radical ion pair state eevolves in nonpolar and polar media with a quantum efficiency of 33%.
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