The unusual electron spin resonance of fullerene C60 anion radical

Allemand, P. M.; Srdanov, G.; Koch, Andreas; Khemani, K. C.; Wudl, Fred; Rubin, Yves; Diederich, François; Alvarez, Marcos M.; Anz, Samir J.; Whetten, Robert L.

doi:10.1021/ja00007a078

Cited by 262 publications

(117 citation statements)

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“…The higher g-value line is assigned to the conjugated polymer cation (polaron) and the lower g-value line to the C 60 Ϫ anion. The assignment of the lower g-value line to C 60 Ϫ is unambiguous, for this low g value was measured earlier (Allemand et al, 1991); the higher g value is typical of conjugated polymers. The LESR signal vanishes above 200 K; this rules out permanent photochemical changes as the origin of the ESR signal and demonstrates the reversibility of the photoinduced electron transfer.…”

Section: Photoinduced Electron Transfersupporting

confidence: 73%

“…The idea of using this property in conjunction with a molecular electron acceptor to achieve long-lived charge separation is based on the stability of the photoinduced nonlinear excitations (such as polarons) on the conjugated polymer backbone. Buckminsterfullerene, C 60 , is an excellent electron acceptor capable of taking on as many as six electrons (Allemand et al, 1991). It forms charge-transfer salts with a variety of strong donors.…”

Section: Photoinduced Electron Transfermentioning

confidence: 99%

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Nobel Lecture: Semiconducting and metallic polymers: The fourth generation of polymeric materials

2001

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Section: Photoinduced Electron Transfersupporting

confidence: 73%

Section: Photoinduced Electron Transfermentioning

confidence: 99%

Nobel Lecture: Semiconducting and metallic polymers: The fourth generation of polymeric materials

2001

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“…7͑a͔͒ is in agreement with the value known from literature. 16 For ͓6,6͔PC 61 BM Ϫ• and ͓5,6͔PC 61 BM Ϫ• g values are 2.0000͑2͒ and 1.9995͑2͒, respectively ͓Fig. 7͑b͒ and 7͑c͔͒.…”

Section: B Photoexcitation Of Composite Filmsmentioning

confidence: 96%

Photoinduced electron transfer from π-conjugated polymers onto Buckminsterfullerene, fulleroids, and methanofullerenes

Janssen

Hummelen

Lee

et al. 1995

The Journal of Chemical Physics

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We present near-steady-state photoinduced absorption ͑PIA͒, photoluminescence, and light-induced electron spin resonance ͑LESR͒ studies on photoinduced electron transfer reactions from poly͑bis-2,5-epi-cholestanoxy-1,4-phenylene vinylene͒ ͑BeCHA-PPV͒ as a donor to Buckminsterfullerene ͑C 60 ͒ and a number of functionalized fullerenes as acceptors. We show that functionalized fullerenes with a solubilizing side chain linked to C 60 in a ͓5,6͔ ͑fulleroid͒ or ͓6,6͔ ͑methanofullerene͒ fashion, are efficient electron acceptors towards BeCHA-PPV, as evidenced from changes in the PIA, the efficient quenching of the photoluminescence, and the LESR spectra of BeCHA-PPV cation and fullerene anion radicals. The increased miscibility of the functionalized fullerenes with the conjugated polymer as compared to C 60 , can be important for the preparation of future electrooptic devices, based on the photoinduced charge separation.

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“…Wudl and collaborators prepared [Ph 4 P] 2 [C 60 ]Cl as a well characterized [60]fulleride(-1) double salt in 1991. 184 Since then, single crystals of a number of closely related compounds containing C 60 -and C 70 -have been obtained by electrocrystallization. [185][186][187][188][189][190] These are discussed in section VI with regard to their X-ray structures.…”

Section: B Electrosynthesis Of Fulleridesmentioning

confidence: 99%

“…This has not been observed as commonly as might be anticipated. 143 139 Early data on phosphonium salts, known to be magnetically dilute from X-ray data, unexpectedly showed excess spin 184 or non-Curie-Weiss behavior. 185,296 Later measurements on both C 60 -and C 70 -salts are, however, in accord with an S ) 1/2 system and Curie-Weiss behavior.…”

Section: Magnetic Susceptibility and Spin Statesmentioning

confidence: 99%

Discrete Fulleride Anions and Fullerenium Cations

2000

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His research interests include reactive cation and superacid chemistry with inert carborane counterions, ionic liquids, bioinorganic chemistry, spin-coupling phenomena, fullerene chemistry, and new carbon-or porphyrin-based materials. He is a Sloan Fellow, a Dreyfus Teacher−Scholar Awardee, and a Guggenheim Fellow. Robert Bolskar received his B.S. degree in Chemistry from Carroll College in Waukesha, WI, in 1992. He earned his Ph.D. degree at the University of Southern California in Los Angeles under the direction of Christopher Reed in 1997, investigating the synthetic redox chemistry of fullerene anions and cations. In 1998 he moved to the University of California, Riverside, as Managing Research Associate. He is currently Senior Chemist at TDA Research in Wheat Ridge, CO. His research interests include the chemistry and physics of fullerene compounds, supramolecular chemistry, strongly oxidizing systems, and electrophilic cations.

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The unusual electron spin resonance of fullerene C60 anion radical

Cited by 262 publications

References 1 publication

Nobel Lecture: Semiconducting and metallic polymers: The fourth generation of polymeric materials

Nobel Lecture: Semiconducting and metallic polymers: The fourth generation of polymeric materials

Photoinduced electron transfer from π-conjugated polymers onto Buckminsterfullerene, fulleroids, and methanofullerenes

Discrete Fulleride Anions and Fullerenium Cations

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