Solid-state studies on C60 solvates grown from n-heptane

Céolin, R.; Агафонов, В.; Bachet, B.; Gonthier-Vassal, A.; Szwarc, H.; Toscani, Siro; Keller, Gregory S.; Fabre, Claude; Rassat, A.

doi:10.1016/0009-2614(95)00886-9

Cited by 27 publications

(20 citation statements)

References 13 publications

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“…For example, C 60 shows maximum solubility in benzene at about 313 K. Crystallization from benzene solution at temperatures below maximum results in formation of triclinic solid solvate with four benzene molecules C 60 Á 4C 6 H 6 which is unstable in air [35,36,45]. The preparation and characterization of solvated fullerenes have been widely studied [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45]. Many fullerene solvates have been observed and make this group of materials an important class of fullerenes.…”

Section: Solvated Fullerenesmentioning

confidence: 98%

“…Reported data for most of these solvates are summarized in Table 2. It can be seen that solvated fullerenes have been synthesized using a variety of solvents, including pentane [37], hexane [38], heptane [39], benzene [34][35][36], and CS 2 [40,41], 1,1,2-trichloroethane (CH 3 CCl 3 ) [27]. In general solvated fullerenes can be synthesized by evaporating fullerene solutions.…”

Section: Preparations Of Solvated Fullerenesmentioning

confidence: 99%

“…The fact that fullerenes can generate solvates when they crystallize from solvents is of particular interest [26][27][28][29]. Many studies have focused on the growth and characterization of solvated fullerenes [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45]. High-pressure studies on this kind of fullerene materials have been carried out by several groups [46][47][48][49][50][51][52][53][54][55][56][57].…”

Section: Introductionmentioning

confidence: 98%

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Solvated fullerenes, a new class of carbon materials suitable for high-pressure studies: A review

Wang

2015

Journal of Physics and Chemistry of Solids

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a b s t r a c tAs the list of known carbon compounds grows longer, solvated fullerenes have become a more important class of carbon materials. Their general properties and methods of synthesis have both attracted considerable attention. The study of the behavior of these compounds under high-pressure conditions has revealed several new phenomena that have never been observed in pure fullerene. This article is a review of all recent progress in this field.

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Section: Solvated Fullerenesmentioning

confidence: 98%

Section: Preparations Of Solvated Fullerenesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Solvated fullerenes, a new class of carbon materials suitable for high-pressure studies: A review

Wang

2015

Journal of Physics and Chemistry of Solids

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“…For example, C 60 crystals grown from benzene, 8,19 n-heptane, 20 CCl 4 , 21 and a benzene solution containing CH 2 I 2 22 have a hexagonal structure. 17 C 60 crystals grown from CS 2 23 or n-pentane 24 in an untwinned form show an orthorhombic lattice.…”

Section: Sem Micrographs Of Wear Tracks Of C 60 and C 70 Filmsmentioning

confidence: 99%

Tribological properties of fullerenes C₆₀ and C₇₀ microparticles

et al. 1996

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The frictional behaviors of fullerenes C 60 and C 70 were studied because they were speculated to be solid lubricants. For the sublimated pure C 60 films on Si(001), a high friction coefficient (0.55-0.8) was observed under different loads and pin materials. For the C 70 film, the friction coefficient showed a pin dependence, which changed from 0.5 with an Al 2 O 3 pin to about 0.9 with a 440 stainless steel pin. The relatively high friction coefficients of C 60 and C 70 films were due to the tendency of the C 60 and C 70 particles to clump and compress into high shear strength layers rather than due to the impurities in the fullerenes. The benzene-solvated C 60 ? 4C 6 H 6 and C 70 ? xC 6 H 6 showed a lowered friction coefficient (0.25 for C 60 ? 4C 6 H 6 and 0.3 for C 70 ? xC 6 H 6 ), which might result from the lowered shear strength of the hcp structure of C 60 ? 4C 6 H 6 and C 70 ? xC 6 H 6 molecular crystals in which the benzene molecules were intercalated.

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“…Crystallization from solutions usually produces C 60 solvated structures [9][10][11][12]. It has been found that C 60 nanorods fabricated from solutions of C 60 in m-xylene have a single-crystalline C 60 *1m-xylene solvated structure [7].…”

Section: Introductionmentioning

confidence: 99%