Insertion of Be Atoms in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>C</mml:mi></mml:mrow><mml:mrow><mml:mn>60</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>Fullerene Cages:<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>B</mml:mi><mml:mi>e</mml:mi><mml:mo>@</mml:mo><mml:mi>C</mml:mi></mml:mrow><mml:mrow><mml:mn>60</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

Ohtsuki, T.; Masumoto, K.; Ohno, Kaoru; Maruyma, Yutaka; Kawazoe, Yoshiyuki; Sueki, Keisuke; Kikuchi, Kôichi

doi:10.1103/physrevlett.77.3522

Cited by 116 publications

(112 citation statements)

References 11 publications

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“…(It should be noted that we have also measured the half-life of 7 Be in a sample of 7 Be@C60. The results have been presented in another paper 15,16) ). Finally, we obtained the half-life (T 1=2 ) for the sample of Be metal crystal ( 7 Be), which is 53:25 AE 0:04 days.…”

Section: Resultsmentioning

confidence: 83%

Lifetime Measurement of <SUP>7</SUP>Be in Beryllium Metal Crystal

Ohtsuki

Ohno

Morisato³

et al. 2007

Mater. Trans.

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The decay rate of an electron-capture nucleus is proportional to the electron density in the nucleus. In order to see how the decay rate can be changed artificially, we have measured the half-life of 7 Be in a beryllium (Be) metal crystal. We found that it is 53:25 AE 0:04 days, which is slightly longer than that in hosts such as graphite, lithium fluoride, and others that have previously been tested.

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Section: Resultsmentioning

confidence: 83%

Lifetime Measurement of <SUP>7</SUP>Be in Beryllium Metal Crystal

Ohtsuki

Ohno

Morisato³

et al. 2007

Mater. Trans.

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“…The residual activities in the solution from 41 Ar, 133g Xe, 135g Xe, or 85m Kr were attributed to the existence of *NG@C 60 compounds. HPLC could be adopted for the separation of the formed endohedral radiofullerenes of 7 Be@C 60 , 85m Kr@C 60 , and 135 Xe@C 60 [37,38] . A recent work [39] studied the n,γ-reaction of metallofullerenes of Tb, Sm and Sc 3 N@C 80 and found that possibly unfavorable geometry of target/projectile system can not explain low yield observed so far.…”

Section: Radiolabeling Of Carbon Nanomaterialsmentioning

confidence: 99%

Applications of radiotracer techniques for the pharmacology and toxicology studies of nanomaterials

2009

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“…Ab initio calculations on the stability of MC 60 (M = Sc, Y and K) and Si atom-doped endohedral C 60 have been reported in the literature (Misra et al 2012: Suzuki et al 1994Ibrahimand El-Haes 2005;Lu et al 2001). Furthermore, doping of radioactive elements, such as beryllium (Be) (Ohtsuki et al 1996) and gadolinium (Gd) (Kubozono et al 1996), has been found to be properly encaged inside a C 60 cluster, leading to substantial applications in nuclear wasting disposal such as nano-container radio activities. Indeed, the discovery of fullerenes has opened the gate for the production and investigation of much more suitable material building blocks, which could be used as drug deliverers in medical applications and/or possible superconductors in technological applications (Alzahrani2012).…”

Section: Introductionmentioning

confidence: 99%

Optimized interaction parameters for metal-doped endohedral fullerene

2017

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Interaction between various atoms doped inside C 60 can be modeled using interaction potentials and, thus, cohesive energy and other physical constants may be calculated. In case of metal-doped fullerene total energy may be written in terms of three different types of interactions, namely carbon-carbon interaction, metal-metal interaction and carbon-metal interaction. Brenner potential, Gupta potential, and Lennard-Jones potentials have been used to model these interactions respectively. Generally, parameters used in these model potentials are not readily available and need to be fine-tuned for different dopants. In this paper, we have deduced/optimized these interaction parameters for Cu, Ag, Al and Ga doped C 60 comparing with our Density Functional Theory (DFT) results and hence predicting the stability of various metal-doped fullerenes. Total energy calculations reveal that a maximum of nine copper atoms can be doped inside the fullerene cage and form stable complex without distorting the cage significantly. As we add more number of Cu atoms in the fullerene molecule, cage structure breaks down. In the same way, we have done calculations for Ag, Al and Ga atoms doped inside the fullerene molecule and found that the maximum of eight, nine, nine atoms can form stable complexes.

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Insertion of Be Atoms inC60Fullerene Cages:Be@C60

Cited by 116 publications

References 11 publications

Lifetime Measurement of <SUP>7</SUP>Be in Beryllium Metal Crystal

Lifetime Measurement of <SUP>7</SUP>Be in Beryllium Metal Crystal

Applications of radiotracer techniques for the pharmacology and toxicology studies of nanomaterials

Optimized interaction parameters for metal-doped endohedral fullerene

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