Results 221 to 230 of about 5,231,656 (248)
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Journal of Luminescence, 1994
Abstract We have observed many relatively sharp lines in the luminescence of single crystals of C60, identifying three zero-phonon lines from singlet states. Reducing the intensity of the laser beam enhances a set of peaks between 11 400 and 12 000 cm-1 (1.41–1.49 eV), and we suggest that they originate from triplet states.
P. Bowmar +5 more
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Abstract We have observed many relatively sharp lines in the luminescence of single crystals of C60, identifying three zero-phonon lines from singlet states. Reducing the intensity of the laser beam enhances a set of peaks between 11 400 and 12 000 cm-1 (1.41–1.49 eV), and we suggest that they originate from triplet states.
P. Bowmar +5 more
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Studies of optical limiting with C 60 in KBr and C 60 thin film on optical glass
SPIE Proceedings, 1996The optical limiting behavior has been first observed for C 60 solution in toluene and in polymethyl methacrylate by Lee W. Tutt et al and A. Kost et al respectively. In order to make the possible use of the optical limiting in practice, we have studied the optical limiting of Q- switched Nd:YAG radiation at 532 nm using the C 60 in KBr as a solid ...
Zhongfu Jiang +4 more
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Pressure-induced deformation of the C 60 fullerene in Rb 6 C 60 and Cs 6 C 60
2008International ...
Poloni, R. +8 more
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Tetrahedron Letters, 2018
Abstract The chlorofullerene C60Cl6 was demonstrated as a versatile precursor for the synthesis of two isomerically pure fullerenols via tetrabutylammonium bromide promoted reactions with water. Performing the synthesis in wet chlorobenzene produced 1,4-C60(OH)2 as the only isolable product along with substantial amounts of non-functionalized C60 ...
Olga A. Kraevaya +3 more
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Abstract The chlorofullerene C60Cl6 was demonstrated as a versatile precursor for the synthesis of two isomerically pure fullerenols via tetrabutylammonium bromide promoted reactions with water. Performing the synthesis in wet chlorobenzene produced 1,4-C60(OH)2 as the only isolable product along with substantial amounts of non-functionalized C60 ...
Olga A. Kraevaya +3 more
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SPIE Proceedings, 2004
C 60 nanowhiskers fabricated by the liquid-liquid interfacial precipitation method were sintered at 800 °C under 5.5 GPa for 2 h. Structural, mechanical, and electrical properties of sintered C 60 nanowhiskers were compared with those of sintered pristine C 60 powder under the same conditions.
Jun-ichi Minato +3 more
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C 60 nanowhiskers fabricated by the liquid-liquid interfacial precipitation method were sintered at 800 °C under 5.5 GPa for 2 h. Structural, mechanical, and electrical properties of sintered C 60 nanowhiskers were compared with those of sintered pristine C 60 powder under the same conditions.
Jun-ichi Minato +3 more
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Tetrahedron Letters, 2001
Abstract Detailed analyses of 1D and 2D 19 F NMR experiments confirm the theoretically predicted structure of the major most thermodynamically stable C 3 isomer of C 60 F 36 , which is distinctly tetrahedral in shape.
Andrei A. Gakh, Albert A. Tuinman
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Abstract Detailed analyses of 1D and 2D 19 F NMR experiments confirm the theoretically predicted structure of the major most thermodynamically stable C 3 isomer of C 60 F 36 , which is distinctly tetrahedral in shape.
Andrei A. Gakh, Albert A. Tuinman
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Structure and electronic state of C−60
Chemical Physics Letters, 1992Abstract Energetically optimized structure of C − 60 has been obtained by the semi-empirical (MINDO/3) MO calculation. C − 60 has turned out to have a squashed and swollen icosahedral geometry with D 3d symmetry due to the Jahn—Teller distortion.
Kazuyoshi Tanaka +3 more
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Threshold photodetachment of cold C−60
Chemical Physics Letters, 1991Abstract Threshold photodetachment of cold C − 60 has been investigated with a tunable dye laser from 2.55 to 2.80 eV. The cold C − 60 was produced through laser vaporization of a purified C 60 target with a specially designed nozzle. The threshold behavior of the detachment cross section as a function of energy was found to be well described by
Lai-Sheng Wang +3 more
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A Raman study of polymerised C 60
Applied Physics A: Materials Science & Processing, 1997are reported. Although prepared according to different routes the Raman spectra of the two polymeric phases of C60 show a quantitative agreement with respect to mode positions and intensity. We conclude from this that both materials have the same structure at least in the short range order, i.e.
T. Wågberg +3 more
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