The 4d-4f dipole resonance of the Pr atom in an endohedral metallofullerene, Pr@C82

Hideki Katayanagi; Bhim P. Kafle; Junkei Kou; Takanori Mori; Koichiro Mitsuke; Yasuhiro Takabayashi; Eiji Kuwahara; Yoshihiro Kubozono

doi:10.1016/j.jqsrt.2007.11.005

The 4d-4f dipole resonance of the Pr atom in an endohedral metallofullerene, Pr@C₈₂

Hideki Katayanagi, Bhim P. Kafle, Junkei Kou, Takanori Mori, Koichiro Mitsuke, Yasuhiro Takabayashi, Eiji Kuwahara, Yoshihiro Kubozono

Research Institute for Interdisciplinary Science

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

The photoion yield spectra of an endohedral metallofullerene Pr@C₈₂ were measured in the photon energy range of 100-150 eV by using time-of-flight mass spectrometry. Parent ions Pr@C₈₂⁺, Pr@C₈₂²⁺ and Pr@C₈₂³⁺ were observed in the mass spectra. The photoion yield spectra of Pr@C₈₂²⁺ showed a broad peak at 120-140 eV that was assigned to the 4d-4f giant dipole resonance of the encapsulated Pr atoms. Absolute photoabsorption cross sections of Pr@C₈₂ were evaluated from the photoion yield spectra to be 37±12 Mb at 110 eV (off-resonance) and 52±13 Mb at 130 eV (on-resonance). These cross sections of Pr@C₈₂ were compared with the results of Ce@C₈₂, the only metallofullerene whose photoionization properties have ever been studied near the 4d edge of the encapsulated metal atom. The enhancement of photoabsorption due to the giant resonance was found to be similar in Pr@C₈₂ and Ce@C₈₂, but there are marked differences in the peak shapes, which can be explained as due to interference effects between the fullerene cage and the encapsulated metal atoms.

Original language	English
Pages (from-to)	1590-1598
Number of pages	9
Journal	Journal of Quantitative Spectroscopy and Radiative Transfer
Volume	109
Issue number	9
DOIs	https://doi.org/10.1016/j.jqsrt.2007.11.005
Publication status	Published - Jun 2008

Keywords

Mass spectrometry
Metallofullerenes
Photoabsorption
Photoionization
Synchrotron radiation

ASJC Scopus subject areas

Radiation
Atomic and Molecular Physics, and Optics
Spectroscopy

Access to Document

10.1016/j.jqsrt.2007.11.005

Cite this

The 4d-4f dipole resonance of the Pr atom in an endohedral metallofullerene, Pr@C₈₂. / Katayanagi, Hideki; Kafle, Bhim P.; Kou, Junkei; Mori, Takanori; Mitsuke, Koichiro; Takabayashi, Yasuhiro; Kuwahara, Eiji; Kubozono, Yoshihiro.

In: Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 109, No. 9, 06.2008, p. 1590-1598.

Research output: Contribution to journal › Article › peer-review

@article{cac67e2ec0914446995dbb15a4d7178d,

title = "The 4d-4f dipole resonance of the Pr atom in an endohedral metallofullerene, Pr@C82",

abstract = "The photoion yield spectra of an endohedral metallofullerene Pr@C82 were measured in the photon energy range of 100-150 eV by using time-of-flight mass spectrometry. Parent ions Pr@C82+, Pr@C822+ and Pr@C823+ were observed in the mass spectra. The photoion yield spectra of Pr@C822+ showed a broad peak at 120-140 eV that was assigned to the 4d-4f giant dipole resonance of the encapsulated Pr atoms. Absolute photoabsorption cross sections of Pr@C82 were evaluated from the photoion yield spectra to be 37±12 Mb at 110 eV (off-resonance) and 52±13 Mb at 130 eV (on-resonance). These cross sections of Pr@C82 were compared with the results of Ce@C82, the only metallofullerene whose photoionization properties have ever been studied near the 4d edge of the encapsulated metal atom. The enhancement of photoabsorption due to the giant resonance was found to be similar in Pr@C82 and Ce@C82, but there are marked differences in the peak shapes, which can be explained as due to interference effects between the fullerene cage and the encapsulated metal atoms.",

keywords = "Mass spectrometry, Metallofullerenes, Photoabsorption, Photoionization, Synchrotron radiation",

author = "Hideki Katayanagi and Kafle, {Bhim P.} and Junkei Kou and Takanori Mori and Koichiro Mitsuke and Yasuhiro Takabayashi and Eiji Kuwahara and Yoshihiro Kubozono",

year = "2008",

month = jun,

doi = "10.1016/j.jqsrt.2007.11.005",

language = "English",

volume = "109",

pages = "1590--1598",

journal = "Journal of Quantitative Spectroscopy and Radiative Transfer",

issn = "0022-4073",

publisher = "Elsevier Limited",

number = "9",

}

TY - JOUR

T1 - The 4d-4f dipole resonance of the Pr atom in an endohedral metallofullerene, Pr@C82

AU - Katayanagi, Hideki

AU - Kafle, Bhim P.

AU - Kou, Junkei

AU - Mori, Takanori

AU - Mitsuke, Koichiro

AU - Takabayashi, Yasuhiro

AU - Kuwahara, Eiji

AU - Kubozono, Yoshihiro

PY - 2008/6

Y1 - 2008/6

N2 - The photoion yield spectra of an endohedral metallofullerene Pr@C82 were measured in the photon energy range of 100-150 eV by using time-of-flight mass spectrometry. Parent ions Pr@C82+, Pr@C822+ and Pr@C823+ were observed in the mass spectra. The photoion yield spectra of Pr@C822+ showed a broad peak at 120-140 eV that was assigned to the 4d-4f giant dipole resonance of the encapsulated Pr atoms. Absolute photoabsorption cross sections of Pr@C82 were evaluated from the photoion yield spectra to be 37±12 Mb at 110 eV (off-resonance) and 52±13 Mb at 130 eV (on-resonance). These cross sections of Pr@C82 were compared with the results of Ce@C82, the only metallofullerene whose photoionization properties have ever been studied near the 4d edge of the encapsulated metal atom. The enhancement of photoabsorption due to the giant resonance was found to be similar in Pr@C82 and Ce@C82, but there are marked differences in the peak shapes, which can be explained as due to interference effects between the fullerene cage and the encapsulated metal atoms.

AB - The photoion yield spectra of an endohedral metallofullerene Pr@C82 were measured in the photon energy range of 100-150 eV by using time-of-flight mass spectrometry. Parent ions Pr@C82+, Pr@C822+ and Pr@C823+ were observed in the mass spectra. The photoion yield spectra of Pr@C822+ showed a broad peak at 120-140 eV that was assigned to the 4d-4f giant dipole resonance of the encapsulated Pr atoms. Absolute photoabsorption cross sections of Pr@C82 were evaluated from the photoion yield spectra to be 37±12 Mb at 110 eV (off-resonance) and 52±13 Mb at 130 eV (on-resonance). These cross sections of Pr@C82 were compared with the results of Ce@C82, the only metallofullerene whose photoionization properties have ever been studied near the 4d edge of the encapsulated metal atom. The enhancement of photoabsorption due to the giant resonance was found to be similar in Pr@C82 and Ce@C82, but there are marked differences in the peak shapes, which can be explained as due to interference effects between the fullerene cage and the encapsulated metal atoms.

KW - Mass spectrometry

KW - Metallofullerenes

KW - Photoabsorption

KW - Photoionization

KW - Synchrotron radiation

UR - http://www.scopus.com/inward/record.url?scp=43149122925&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=43149122925&partnerID=8YFLogxK

U2 - 10.1016/j.jqsrt.2007.11.005

DO - 10.1016/j.jqsrt.2007.11.005

M3 - Article

AN - SCOPUS:43149122925

VL - 109

SP - 1590

EP - 1598

JO - Journal of Quantitative Spectroscopy and Radiative Transfer

JF - Journal of Quantitative Spectroscopy and Radiative Transfer

SN - 0022-4073

IS - 9

ER -