Determination of the electron affinities of fluorinated fullerenes (C60F44,46, C70F52,54) by Fourier transform mass spectrometry

Robert Hettich; Changming Jin; Robert Compton

doi:10.1016/0168-1176(94)04059-1

Determination of the electron affinities of fluorinated fullerenes (C₆₀F_44,46, C₇₀F_52,54) by Fourier transform mass spectrometry

Robert Hettich
, Changming Jin
, Robert Compton

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

28 Scopus citations

Abstract

Negative ion charge exchange reactions in a Fourier transform mass spectrometer were used to "bracket" the electron affinities of the fluorinated fullerenes C₆₀F_x (x = 44,46) and C₇₀F_y (y = 52,54). By monitoring the occurrence of charge exchange reactions between negative ions and gas phase neutrals of fluorinated fullerenes and a variety of reagents, electron affinities were determined to be EA(C₆₀F_44,46) = 4.06±0.25 eV and EA(C₇₀F_52,54) = 4.06±0.25 eV. These results indicate that fluorination at this level increases the electron affinities of these fullerene derivatives by almost 1.5 eV. It was also determined that the electron affinity of C₇₀F_y (y = 52, 54) is slightly greater than that for C₆₀F_x (x = 44, 46), which may be related to the higher number of substituted fluorines and/or the fact that the EA(C₇₀) is also known to be greater than EA(C₆₀).

Original language	English
Pages (from-to)	263-274
Number of pages	12
Journal	International Journal of Mass Spectrometry and Ion Processes
Volume	138
Issue number	C
DOIs	https://doi.org/10.1016/0168-1176(94)04059-1
State	Published - Oct 13 1994

Funding

Acknowledgment for support of this research is given to the Oak Ridge National

Keywords

Electron affinities
Fluorinated fullerenes
Fourier transform mass spectrometry
Fullerenes

Access to Document

10.1016/0168-1176(94)04059-1

Cite this

@article{d6d70dac03564360b6e50fa176a05365,

title = "Determination of the electron affinities of fluorinated fullerenes (C60F44,46, C70F52,54) by Fourier transform mass spectrometry",

abstract = "Negative ion charge exchange reactions in a Fourier transform mass spectrometer were used to {"}bracket{"} the electron affinities of the fluorinated fullerenes C60Fx (x = 44,46) and C70Fy (y = 52,54). By monitoring the occurrence of charge exchange reactions between negative ions and gas phase neutrals of fluorinated fullerenes and a variety of reagents, electron affinities were determined to be EA(C60F44,46) = 4.06±0.25 eV and EA(C70F52,54) = 4.06±0.25 eV. These results indicate that fluorination at this level increases the electron affinities of these fullerene derivatives by almost 1.5 eV. It was also determined that the electron affinity of C70Fy (y = 52, 54) is slightly greater than that for C60Fx (x = 44, 46), which may be related to the higher number of substituted fluorines and/or the fact that the EA(C70) is also known to be greater than EA(C60).",

keywords = "Electron affinities, Fluorinated fullerenes, Fourier transform mass spectrometry, Fullerenes",

author = "Robert Hettich and Changming Jin and Robert Compton",

year = "1994",

month = oct,

day = "13",

doi = "10.1016/0168-1176(94)04059-1",

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journal = "International Journal of Mass Spectrometry and Ion Processes",

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TY - JOUR

T1 - Determination of the electron affinities of fluorinated fullerenes (C60F44,46, C70F52,54) by Fourier transform mass spectrometry

AU - Hettich, Robert

AU - Jin, Changming

AU - Compton, Robert

PY - 1994/10/13

Y1 - 1994/10/13

N2 - Negative ion charge exchange reactions in a Fourier transform mass spectrometer were used to "bracket" the electron affinities of the fluorinated fullerenes C60Fx (x = 44,46) and C70Fy (y = 52,54). By monitoring the occurrence of charge exchange reactions between negative ions and gas phase neutrals of fluorinated fullerenes and a variety of reagents, electron affinities were determined to be EA(C60F44,46) = 4.06±0.25 eV and EA(C70F52,54) = 4.06±0.25 eV. These results indicate that fluorination at this level increases the electron affinities of these fullerene derivatives by almost 1.5 eV. It was also determined that the electron affinity of C70Fy (y = 52, 54) is slightly greater than that for C60Fx (x = 44, 46), which may be related to the higher number of substituted fluorines and/or the fact that the EA(C70) is also known to be greater than EA(C60).

AB - Negative ion charge exchange reactions in a Fourier transform mass spectrometer were used to "bracket" the electron affinities of the fluorinated fullerenes C60Fx (x = 44,46) and C70Fy (y = 52,54). By monitoring the occurrence of charge exchange reactions between negative ions and gas phase neutrals of fluorinated fullerenes and a variety of reagents, electron affinities were determined to be EA(C60F44,46) = 4.06±0.25 eV and EA(C70F52,54) = 4.06±0.25 eV. These results indicate that fluorination at this level increases the electron affinities of these fullerene derivatives by almost 1.5 eV. It was also determined that the electron affinity of C70Fy (y = 52, 54) is slightly greater than that for C60Fx (x = 44, 46), which may be related to the higher number of substituted fluorines and/or the fact that the EA(C70) is also known to be greater than EA(C60).

KW - Electron affinities

KW - Fluorinated fullerenes

KW - Fourier transform mass spectrometry

KW - Fullerenes

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DO - 10.1016/0168-1176(94)04059-1

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JO - International Journal of Mass Spectrometry and Ion Processes

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