Ionization Energy of Fullerenes

Boltalina, Olga V.; Ioffe, Ilya N.; Sidorov, Lev N.; Seifert, and Gotthard; Vietze, K.

doi:10.1021/ja000734b

Cited by 103 publications

(69 citation statements)

References 33 publications

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“…The most important parameter in equation (A.2) is the electron affinity, which is known fairly well for the fullerenes [15]. It depends only weakly on the number of atoms and in the first analysis we have assumed the value to be E b = 3.15 eV for all the fullerenes, except for the magic numbers N = 60 and 70 where accurate values of E b = 2.67 and 2.68 eV have been measured [46].…”

Section: Appendix Amentioning

confidence: 99%

“…The weaker binding of an additional electron in these cases is connected to the high stability of the magic molecules. According to Figure 3 in reference [15], the electron affinity is also somewhat lower in the regions N = 36-40 and 62-68, and we have for these molecules used the value E b = 2.85 eV as an alternative (see also Ref. [47]).…”

Section: Appendix Amentioning

confidence: 99%

“…The emission is analogous to thermionic emission from a metal, and the rate constant is given by an expression similar to the Richardson-Dushman formula [11,14]. The electron affinities of the fullerenes are known fairly well [15] and the pre-exponential factor in the formula may be estimated via detailed balance from a e-mail: jua@ifa.au.dk measured attachment cross-sections. It is therefore possible to simulate the observed decay rate as a function of time and extract the strength of radiative cooling as a function of their temperature [11].…”

Section: Introductionmentioning

confidence: 99%

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Radiative cooling of fullerene anions in a storage ring

Andersen

Gottrup

Hansen

et al. 2001

The European Physical Journal D

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Abstract. Thermionic emission from hot fullerene anions, C − N , has been measured in an electrostatic storage ring for even N values from 36 to 96. The decay is quenched by radiative cooling and hence the observations give information on the intensity of thermal radiation from fullerenes. The experiments are analysed by comparison with a simulation which includes the quantisation of photon energy and the statistics of emission. Experiments with heating of the molecules with a laser beam confirm the interpretation of the observations in terms of radiative cooling and give an independent estimate of the cooling rate for C − 60 . The measured cooling rates agree in general within a factor of two with the prediction from a classical dielectric model of a thermal radiation intensity of ∼ 300 eV/s for C60 at 1 400 K, scaling approximately with the 6th power of the temperature and with the number of atoms in the molecule. PACS

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Section: Appendix Amentioning

confidence: 99%

Section: Appendix Amentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Radiative cooling of fullerene anions in a storage ring

Andersen

Gottrup

Hansen

et al. 2001

The European Physical Journal D

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“…In addition, these figures show that di↵erent types of nonlinearities are exhibited by the detachment energies of both the icosahedral and nonicosahedral species. Figure 2 further illustrates that such nonlinear behaviors are contrary to expectations (dotted lines) from purely classical theories [10,11] that have been applied [4] to explain the scaling of fullerene detachment energies and their limiting behavior as 1/r n approaches zero.…”

Section: Introductionmentioning

confidence: 66%

“…Because they are large molecules, though, containing many atoms and electrons, detailed, accurate quantum theoretical treatments are di cult and computationally intensive. Measurements of the electronic properties of the isolated molecules are similarly challenging [2][3][4]. On the other hand, the regular, quasispherical structures of these pure carbon systems [5], along with results from quantum scaling investigations on other systems [6][7][8][9], suggest that the fullerenes' quantum properties might vary or "scale" with their dimensions in very regular ways.…”

Section: Introductionmentioning

confidence: 99%

Smooth Scaling of Valence Electronic Properties in Fullerenes: From One Carbon Atom, to C60, to Graphene

Lewis¹,

Bunting²,

Zope³

et al. 2012

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Scaling of quantum capacitances and valence electron detachment energies is studied for icosahedral and nonicosahedral fullerenes. Scaling trends are considered from zero to infinite average radius, where a fullerene's local surface properties are similar to those of graphene. Detailed density functional theory calculations are performed to determine the geometries and detachment energies of icosahedral fullerenes, while values of these quantities are obtained for nonicosahedral species from previously published experimental results. Strongly linear, quasiclassical scaling versus average radii rn is seen for the quantum capacitances, but on two di↵erent scaling lines for icosahedral and nonicosahedral species, respectively. By contrast, nonclassical, nonlinear scaling versus 1/rn is seen for the electron detachment energies-i.e., the valence ionization potentials and electron a nities. This nonlinearity is not accounted for by classical theories that are used to explain trends in electronic properties of fullerenes and usually give accurate quantitative estimates. Instead, simple quantum equations are derived to account for nonlinearities in the metal-particle-like electron detachment energy scaling and to show that these are responsible for nonclassical, nonzero intercepts in the capacitance scaling lines of the fullerenes. Lastly, it is found that points representing the carbon atom and the graphene limit lie on scaling lines for icosahedral fullerenes, so their quantum capacitances and their detachment energies scale smoothly from one C atom, through C 60, to graphene.

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Fullerenes

Echegoyen¹,

Herranz²,

Echegoyen³

2006

Encyclopedia of Electrochemistry

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The sections in this article are Introduction Electrochemistry of C 60 and C 70 Reduction of C 60 Reduction of C 70 Oxidation of C 60 and C 70 Electrochemistry of the Higher Fullerenes, C 76 , C 78 , C 82 , and C 84 Reduction and Oxidation of C 76 Reduction and Oxidation of C 78 Reduction and Oxidation of C 82 Reduction and Oxidation of C 84 Electrochemistry of C 60 Derivatives Singly Bonded Functionalized Derivatives of C 60 Hydrofullerenes Alkylfullerenes Fluorofullerenes Other Singly Bonded Derivatives Cycloaddition Products C 60 Electron‐acceptor Cycloadducts C 60 ‐Electron Donor Cycloadducts Cyclopropanated Derivatives of C 60 C ‐bridged Cyclopropanated Derivatives: Methanofullerenes and Fulleroids Other Cyclopropanated Derivatives of C 60 C 60 ‐dimers Electrochemistry of C 70 Derivatives Electrochemistry of C 76 , C 78 , and C 84 Derivatives Electrosynthesis Electrosynthesis of C 60 and C 70 Derivatives Electrochemically Induced Retro‐cyclopropanation Reactions

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Ionization Energy of Fullerenes

Cited by 103 publications

References 33 publications

Radiative cooling of fullerene anions in a storage ring

Radiative cooling of fullerene anions in a storage ring

Smooth Scaling of Valence Electronic Properties in Fullerenes: From One Carbon Atom, to C60, to Graphene

Fullerenes

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