A complex of buckminsterfullerene with sulfur, C60�2S8: synthesis and crystal structure

Buravov, L. I.; D’yachenko, O. A.; Коновалихин, С. В.; Kushch, N. D.; Lavrent'ev, I. P.; Spitsyna, N. G.; Шилов, Г. В.; Yagubskii, Eduard B.

doi:10.1007/bf00695818

Cited by 22 publications

(26 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7 Thus, the molecular structure cannot be determined and a crystalline solid within which C 60 molecules could be considered as ordered and motionless was looked for. From x-ray diffraction 8,9 and electron spin resonance 10 ͑ESR͒ measurements, the C 60 •2S 8 solvate seemed to comply to this objective. From x-ray diffraction measurements, C 60 •2S 8 is monoclinic ͑space group C2/c, aϭ20.90 Å, bϭ21.01 Å, c ϭ10.537 Å, ␤ϭ111.29°).…”

Section: Introductionmentioning

confidence: 93%

Molecular dynamics ofC60⋅2S8:A
Grell
¹
,
Masin
²
,
Céolin
³

et al. 2000
Phys. Rev. B

View full text Add to dashboard Cite

13 C NMR studies of polycrystalline C 60 •2S 8 are reported. At room temperature, the static 13 C NMR spectra are similar to the 13 C spectrum of polycrystalline C 60 , which suggests that C 60 molecules undergo fast reorientational motion within the solvate lattice as within pure crystalline C 60 . This observation seems to contradict previous x-ray results that were interpreted in terms of motionless C 60 molecules within the solvate lattice; however, it agrees with thermodynamic measurements according to which the enthalpy for the departure of sulfur from the solvate is nearly equal to that of pure sulfur sublimation. The evolution of the shielding tensor as a function of temperature is also reported: it exhibits a steep change near 150 K that corresponds to a slowing down of the C 60 rotational motion. Finally, according to the variation of the 13 C spin-lattice relaxation time T 1 vs temperature, the dynamics of C 60 molecules, which consists in jumps between symmetryequivalent orientations, can be considered as ruled by two activation energies, 15.3 and 24.8 kJ mol Ϫ1 .

show abstract

Section: Introductionmentioning

confidence: 93%

Molecular dynamics ofC60⋅2S8:A
Grell
¹
,
Masin
²
,
Céolin
³

et al. 2000
Phys. Rev. B

View full text Add to dashboard Cite

show abstract

“…Fullerene and sulfur compounds, such as C 60 S 16 , C 60 S 8 CS 2 , C 70 S 8 and C 70 S 48 , have been synthesized by several methods [1][2][3][4][5][6][7][8][9] Talyzin et al synthesized C 70 S 8 crystal by evaporating organic solvents in a sealed vessel. 7) Good quality C 60 S 16 and C 70 S 48 thin films were prepared by co-evaporation of fullerenes and sulfur in vacuo and by a reaction of amorphous fullerene films placed in a saturated sulfur toluene solution1).…”

Section: Introductionmentioning

confidence: 99%

Fullerene and Sulfur Compounds

et al. 2002

View full text Add to dashboard Cite

A new method to synthesize fullerene and sulfur compounds, C 60 S 16 and C 70 S 16 compounds of about 1 mm length, has been developed. The C 60 S 16 crystal is a C-centered monoclinic structure of a = 2.0874(1) nm, b = 2.1139(1) nm, c = 1.05690(6) nm and β = 111.9 degree. The C 70 S 16 compound has a primitive monoclinic structure of a = 1.5271(2) nm, b = 1.49971(7) nm, c = 2.18024(9) nm and β = 109.791(1) degree. The crystalline structure of these compounds is constructed by fullerene and S 8 -rings. A very small amount of charge-transfer between fullerenes and sulfur rings are expected by first-principle calculation.

show abstract

“…Sulphur was evenly distributed in the fibres and the element ratio of carbon to sulphur was 19:1. It is well known that S 8 is stably formed by sulphur and crystals composed of C 60 and S 8 grow under equilibrium conditions [28,29]. A TEM image and SAED pattern of a nanofibre are shown in figure 2(c).…”

Section: Resultsmentioning

confidence: 99%

“…It is supposed that the trapping of C 60 molecules by sulphur clusters and the outwards motion of the circumference of a droplet are necessary for the nucleation and growth of aligned nanofibres. Sulphur clusters may be acting as nucleation sites to form C 60 -sulphur clusters such as (C 60 ) n S 8 (n = 2 or 3 according to the elementary analysis) since S 8 attracts C 60 molecules [28,29] (see supplementary data 2 for the potential curves) and the temperature of the substrate needs to be higher than that of a droplet of the solution for the induction of outwards motion of the circumference of the droplet by the Marangoni effect.…”

Section: Resultsmentioning

confidence: 99%

Quick synthesis of highly aligned or randomly oriented nanofibrous structures composed of C ₆₀ molecules via self-assembly

Kurosu¹,

Fukuda²,

Maekawa³

2013

Adv. Nat. Sci: Nanosci. Nanotechnol.

View full text Add to dashboard Cite

Assemblies, which are composed of nanoparticles such as nanofibres, have been intensively studied in recent years. This has particularly been the case in the field of biomedicine, where the aim is to develop efficient methodologies for capturing and separating target biomolecules and cells and/or encouraging bio-chemical reactions, utilizing the extremely high surface area to volume ratio of assemblies. There is an urgent need for the development of a quick synthesis method of forming nanofibrous structures on the surface of biomedical microchips and devices for the investigation of the interactions between biomolecules/cells and the nanostructures. Here, we produce nanofibrous structures composed of C 60 molecules, which are aligned in one direction or randomly oriented, by dissolving C 60 molecules and sulphur in benzene and evaporating a droplet of the solution on a glass substrate under appropriate conditions. The synthesis time is as short as 30 s. Sulphur is extracted and nanofibres are crystallized by leaving them in supercritical carbon dioxide.

show abstract

A complex of buckminsterfullerene with sulfur, C60�2S8: synthesis and crystal structure

Cited by 22 publications

References 12 publications

Molecular dynamics ofC60⋅2S8:A
Grell
¹
,
Masin
²
,
Céolin
³

et al. 2000
Phys. Rev. B

Molecular dynamics ofC60⋅2S8:A
Grell
¹
,
Masin
²
,
Céolin
³

et al. 2000
Phys. Rev. B

Fullerene and Sulfur Compounds

Quick synthesis of highly aligned or randomly oriented nanofibrous structures composed of C ₆₀ molecules via self-assembly

Contact Info

Product

Resources

About

A complex of buckminsterfullerene with sulfur, C60�2S8: synthesis and crystal structure

Cited by 22 publications

References 12 publications

Molecular dynamics ofC60⋅2S8:AGrell1, Masin2, Céolin3 et al. 2000Phys. Rev. B

Molecular dynamics ofC60⋅2S8:AGrell1, Masin2, Céolin3 et al. 2000Phys. Rev. B

Fullerene and Sulfur Compounds

Quick synthesis of highly aligned or randomly oriented nanofibrous structures composed of C 60 molecules via self-assembly

Contact Info

Product

Resources

About

Molecular dynamics ofC60⋅2S8:A
Grell
¹
,
Masin
²
,
Céolin
³

et al. 2000
Phys. Rev. B

Molecular dynamics ofC60⋅2S8:A
Grell
¹
,
Masin
²
,
Céolin
³

et al. 2000
Phys. Rev. B

Quick synthesis of highly aligned or randomly oriented nanofibrous structures composed of C ₆₀ molecules via self-assembly