Characterization of the soluble all-carbon molecules C60 and C70

Henry Ajie; Marcos M. Alvarez; Samir J. Anz; Rainer D. Beck; François Diederich; K. Fostiropoulos; Donald R. Huffman; Wolfgang Krätschmer; Yves Rubin; Kenneth E. Schriver; Dilip Sensharma; Robert L. Whetten

doi:10.1021/j100387a004

Characterization of the soluble all-carbon molecules C₆₀ and C₇₀

Henry Ajie, Marcos M. Alvarez, Samir J. Anz, Rainer D. Beck, François Diederich, K. Fostiropoulos, Donald R. Huffman, Wolfgang Krätschmer, Yves Rubin, Kenneth E. Schriver, Dilip Sensharma, Robert L. Whetten

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Abstract

We report on the further physical and chemical characterization of the new forms of molecular carbon, C₆₀ and C₇₀. Our results demonstrate a high yield of production (14%) under optimized conditions and reveal only C₆₀ and C₇₀ in measurable quantity, in an 85:15 ratio. These two new molecular forms of carbon can be completely separated in analytical amounts by column chromatography on alumina. Comparison among mass spectra obtained by the electron impact, laser desorption, and fast atom bombardment (FAB) methods allows a clear assessment of the composition of the mixed and pure samples, and of the fragmentation and double ionization patterns of the molecules. In addition, spectroscopic analyses are reported for the crude mixture by ¹³C NMR and by IR spectroscopy in KBr pellet, and for pure C₆₀ and C₇₀ in solution by UV-vis spectroscopy.

Original language	English (US)
Pages (from-to)	8630-8633
Number of pages	4
Journal	Journal of physical chemistry
Volume	94
Issue number	24
DOIs	https://doi.org/10.1021/j100387a004
State	Published - 1990
Externally published	Yes

ASJC Scopus subject areas

General Engineering
Physical and Theoretical Chemistry

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title = "Characterization of the soluble all-carbon molecules C60 and C70",

abstract = "We report on the further physical and chemical characterization of the new forms of molecular carbon, C60 and C70. Our results demonstrate a high yield of production (14%) under optimized conditions and reveal only C60 and C70 in measurable quantity, in an 85:15 ratio. These two new molecular forms of carbon can be completely separated in analytical amounts by column chromatography on alumina. Comparison among mass spectra obtained by the electron impact, laser desorption, and fast atom bombardment (FAB) methods allows a clear assessment of the composition of the mixed and pure samples, and of the fragmentation and double ionization patterns of the molecules. In addition, spectroscopic analyses are reported for the crude mixture by 13C NMR and by IR spectroscopy in KBr pellet, and for pure C60 and C70 in solution by UV-vis spectroscopy.",

author = "Henry Ajie and Alvarez, {Marcos M.} and Anz, {Samir J.} and Beck, {Rainer D.} and Fran{\c c}ois Diederich and K. Fostiropoulos and Huffman, {Donald R.} and Wolfgang Kr{\"a}tschmer and Yves Rubin and Schriver, {Kenneth E.} and Dilip Sensharma and Whetten, {Robert L.}",

year = "1990",

doi = "10.1021/j100387a004",

language = "English (US)",

volume = "94",

pages = "8630--8633",

journal = "Journal of physical chemistry",

issn = "0022-3654",

publisher = "American Chemical Society",

number = "24",

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TY - JOUR

T1 - Characterization of the soluble all-carbon molecules C60 and C70

AU - Ajie, Henry

AU - Alvarez, Marcos M.

AU - Anz, Samir J.

AU - Beck, Rainer D.

AU - Diederich, François

AU - Fostiropoulos, K.

AU - Huffman, Donald R.

AU - Krätschmer, Wolfgang

AU - Rubin, Yves

AU - Schriver, Kenneth E.

AU - Sensharma, Dilip

AU - Whetten, Robert L.

PY - 1990

Y1 - 1990

N2 - We report on the further physical and chemical characterization of the new forms of molecular carbon, C60 and C70. Our results demonstrate a high yield of production (14%) under optimized conditions and reveal only C60 and C70 in measurable quantity, in an 85:15 ratio. These two new molecular forms of carbon can be completely separated in analytical amounts by column chromatography on alumina. Comparison among mass spectra obtained by the electron impact, laser desorption, and fast atom bombardment (FAB) methods allows a clear assessment of the composition of the mixed and pure samples, and of the fragmentation and double ionization patterns of the molecules. In addition, spectroscopic analyses are reported for the crude mixture by 13C NMR and by IR spectroscopy in KBr pellet, and for pure C60 and C70 in solution by UV-vis spectroscopy.

AB - We report on the further physical and chemical characterization of the new forms of molecular carbon, C60 and C70. Our results demonstrate a high yield of production (14%) under optimized conditions and reveal only C60 and C70 in measurable quantity, in an 85:15 ratio. These two new molecular forms of carbon can be completely separated in analytical amounts by column chromatography on alumina. Comparison among mass spectra obtained by the electron impact, laser desorption, and fast atom bombardment (FAB) methods allows a clear assessment of the composition of the mixed and pure samples, and of the fragmentation and double ionization patterns of the molecules. In addition, spectroscopic analyses are reported for the crude mixture by 13C NMR and by IR spectroscopy in KBr pellet, and for pure C60 and C70 in solution by UV-vis spectroscopy.

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JO - Journal of physical chemistry

JF - Journal of physical chemistry

IS - 24

ER -

Characterization of the soluble all-carbon molecules C₆₀ and C₇₀

Abstract

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