Interaction of sodium fullerene derivatives with trimethylchlorosilane

Titova, S. N.; Домрачев, Г. А.; Gorina, E. A.; Kalakutskaya, L. V.; Ob”edkov, A. M.; Kaverin, B. S.; Ketkov, Sergey Yu.; Lopatin, M. A.; Маркин, А. В.; Смирнова, Н. Н.; Zhogova, K. B.

doi:10.1134/s1063783406050301

Cited by 4 publications

(8 citation statements)

References 12 publications

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“…It should be noted that the interaction of Na 4 C 60 (THF) x with Me 3 SiCl resulted in the formation of the highly soluble in toluene dimeric reaction product [(Me 3 Si) 3 C 60 ] 2 identified from IR-spectra [6]. The solubility of the complex in toluene points to its nonionic structure.…”

Section: Methodsmentioning

confidence: 98%

“…The sample of the fullerene complex [(Me 3 Si) 3 C 60 ] 2 was synthesized by the procedure described earlier [6]. It should be noted that the interaction of Na 4 C 60 (THF) x with Me 3 SiCl resulted in the formation of the highly soluble in toluene dimeric reaction product [(Me 3 Si) 3 C 60 ] 2 identified from IR-spectra [6].…”

Section: Methodsmentioning

confidence: 99%

“…It was shown by us earlier [6] that the interaction of sodium derivatives of fullerene Na n C 60 (THF) x (n = 4, 6, 8, 10) with trimethylchlorosilane (Me 3 SiCl) in toluene solution leads to the formation of dimeric compounds of fullerene [(Me 3 Si) (nÀ1) C 60 ] 2 (n = 4, 6, 8, 10) and monomeric (Me 3 Si) 12 C 60 . These compounds were firstly prepared and characterized with IR, NMR and mass spectrometry methods.…”

Section: Introductionmentioning

confidence: 98%

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Thermodynamics of dimer fullerene complex [(Me3Si)3C60]2 in the range from 0⩽T/K⩽480

Маркин

Смирнова

Быкова

et al. 2007

The Journal of Chemical Thermodynamics

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Section: Methodsmentioning

confidence: 98%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Thermodynamics of dimer fullerene complex [(Me3Si)3C60]2 in the range from 0⩽T/K⩽480

Маркин

Смирнова

Быкова

et al. 2007

The Journal of Chemical Thermodynamics

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“…However, as it follows from the experimental data, the investigated object is the mixture of products one of which is the non-reacted fullerite. With regard to this problem, the methods of fullerides synthesis in nonaqueous solutions described in references [12,[15][16][17][18] are less dependent on the rate of metal diffusion.…”

Section: Introductionmentioning

confidence: 99%

“…The purpose of this work is the investigation of the dynamic behavior of sodium atoms in Na C 60 fullerides (n = 2, 3) synthesized from precursor solutions in toluene [12,[15][16][17][18] by means of NMR and EPR methods.…”

Section: Introductionmentioning

confidence: 99%

Magnetic and structural anomalies of NanC60 (n = 2, 3)

et al. 2009

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Abstract:Sodium fullerides Na C 60 (n = 2, 3) have been synthesized by a liquid phase reaction and investigated with X-ray diffraction (XRD), nuclear magnetic resonance (NMR), electron paramagnetic resonance, and differential thermal analysis. XRD data indicate that the crystal structure of Na 2 C 60 at 300 K is face centered cubic (FCC). A phase transition from primitive cubic to FCC crystal structure has been observed in this work in Na 2 C 60 fulleride at 290 K. The transition is accompanied by the step-like change of paramagnetic susceptibility. The crystal structure of Na 3 C 60 is more complicated than, and different from, what has been reported in the literature. A nearly seven-fold increase of paramagnetic susceptibility with increasing temperature has been observed in the Na 3 C 60 fulleride at 240-260 K. In the same temperature range, a new line at about 255 ppm appears in the 23 Na NMR spectrum, indicating a significant increase of electron density near the Na nucleus. The observed effect can be explained by a metal-insulator transition caused by a structural transition.PACS (2008)

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Heat Capacity and Standard Thermodynamic Functions of a Fullerene Complex, ((CH₃)₃Si)₁₂C₆₀, over the Range fromT→ 0 K toT= 350 K

et al. 2009

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Low-temperature heat capacities of the crystalline fullerene complex ((CH 3 ) 3 Si) 12 C 60 have been measured by a precision adiabatic calorimeter over the temperature range from T ) (6.5 to 350) K for the first time. The experimental results have been used to calculate the standard (p o ) 0.1 MPa) thermodynamic functions: molar heat capacities, C p,m o , enthalpy, H o (T) -H o (0), entropy, S o (T), and Gibbs energy, G o (T) -H o (0), of ((CH 3 ) 3 Si) 12 C 60 (cr) over the range from T f 0 K to T ) 350 K. The low-temperature (T < 50 K) dependence of the heat capacity was analyzed on the basis of Debye's heat capacity theory of solids and its fractal variant. Following that analysis, the characteristic temperatures as well as the fractal dimension were determined, and some conclusions about the structure topology were made. The standard entropy of formation at T ) 298.15 K of ((CH 3 ) 3 Si) 12 C 60 (cr) was calculated. The standard thermodynamic properties of tested fullerene complex and previously studied C 60 fullerite/fullerene complex (t-Bu) 12 C 60 were compared.

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Interaction of sodium fullerene derivatives with trimethylchlorosilane

Cited by 4 publications

References 12 publications

Thermodynamics of dimer fullerene complex [(Me3Si)3C60]2 in the range from 0⩽T/K⩽480

Thermodynamics of dimer fullerene complex [(Me3Si)3C60]2 in the range from 0⩽T/K⩽480

Magnetic and structural anomalies of NanC60 (n = 2, 3)

Heat Capacity and Standard Thermodynamic Functions of a Fullerene Complex, ((CH₃)₃Si)₁₂C₆₀, over the Range fromT→ 0 K toT= 350 K

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Interaction of sodium fullerene derivatives with trimethylchlorosilane

Cited by 4 publications

References 12 publications

Thermodynamics of dimer fullerene complex [(Me3Si)3C60]2 in the range from 0⩽T/K⩽480

Thermodynamics of dimer fullerene complex [(Me3Si)3C60]2 in the range from 0⩽T/K⩽480

Magnetic and structural anomalies of NanC60 (n = 2, 3)

Heat Capacity and Standard Thermodynamic Functions of a Fullerene Complex, ((CH3)3Si)12C60, over the Range fromT→ 0 K toT= 350 K

Contact Info

Product

Resources

About

Heat Capacity and Standard Thermodynamic Functions of a Fullerene Complex, ((CH₃)₃Si)₁₂C₆₀, over the Range fromT→ 0 K toT= 350 K