Synthesis of Fe–C60 complex by ion irradiation

Review of Scientific Instruments

et al. 2013

In this paper, we discuss the results of our study of the synthesis of endohedral iron-fullerenes. A low energy Fe + ion beam was irradiated to C 60 thin film by using a deceleration system. Fe + -irradiated C 60 thin film was analyzed by high performance liquid chromatography and laser desorption/ ionization time-of-flight mass spectrometry. We investigated the performance of the deceleration system for using a Fe + beam with low energy. In addition, we attempted to isolate the synthesized material from a Fe + -irradiated C 60 thin film by high performance liquid chromatography.

“…We irradiated the Fe + beam within the ion energy range from 250 to 40 eV in our previous paper. 6 Therefore, we could confirm the previous data integrity is high from these results.…”

Section: Resultssupporting

confidence: 71%

Section: A Characterization Of the Deceleration Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis of endohedral iron-fullerenes by ion implantation

Minezaki

Ishihara

Review of Scientific Instruments

et al. 2013

“…Metal-fullerene complexes, which include Os [15,16], Zn [17], and Co [18] are also important in fullerene chemistry because of their potential applications in biological, magnetic, electronic, catalytic, and optical devices. One of the authors involved in the present study succeeded in synthesizing an Fe-C 60 complex by low energy Fe + ion irradiation on C 60 thin films [19,20]. Fe-C 60 complex, along with EMF Fe@C 60 , may be useful for application as a contrast agent in the MRI because the Fe atom is a low-cost and safe alternative to Gd.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Iron-Fullerene Complexes by Scattering of C<sub>60</sub> Ions on Ferrocenyl-Undecanethiol SAM Surfaces

Motohashi

Tachikawa

e-J. Surf. Sci. Nanotech.

et al. 2018

Self Cite

In this study, we performed a mass-spectrometric study of cluster ions scattered on glass surfaces covered with ferrocene molecules under the incidence of 4.8 keV-C q+ 60 (q = 1 and 2) ions. A couple of optical flats covered with 11-ferrocenyl-1-undecanethiol self-assembled monolayer surfaces (Fc-thiol-SAMs) faced each other with a shape called a tapered planar channel (TPC) and C60 ions entered the wider opening gap. The mass and charge of each ion exiting from the narrower gap of the TPC were successfully analyzed using time-of-flight mass spectrometry combined with the parallel plate charge separation method. When the TPC was tilted by 2 • with respect to the C60 ion beam axis, the mass distribution peak shifted to ∼730 u. Furthermore, we conducted an elemental analysis of the scattered particles deposited on a Si substrate by inductively coupled plasma mass spectrometry. A significant increase in the amount of iron atoms was confirmed for the deposited substrate, as compared with non-deposited substrates.

“…We succeeded in the production of endohedral N@C 60 and Fe@C 60 by an ion irradiation method. 1,2 The yields were quite low because only the surfaces of C 60 thin films were irradiated with ion beams. We have attempted gas-phase synthesis in the ECR plasma as an alternative.…”

Section: Introductionmentioning

confidence: 99%

Fullerene-rare gas mixed plasmas in an electron cyclotron resonance ion source

Asaji

Ohba

Review of Scientific Instruments

et al. 2013

A synthesis technology of endohedral fullerenes such as Fe@C60 has developed with an electron cyclotron resonance (ECR) ion source. The production of N@C60 was reported. However, the yield was quite low, since most fullerene molecules were broken in the ECR plasma. We have adopted gas-mixing techniques in order to cool the plasma and then reduce fullerene dissociation. Mass spectra of ion beams extracted from fullerene-He, Ar or Xe mixed plasmas were observed with a Faraday cup. From the results, the He gas mixing technique is effective against fullerene destruction.