Yttrium-containing endohedral metallofullerenes: Synthesis and extraction

被引：3

作者：

Churilov, G. N. ^{[1
,2
]}

Vnukova, N. G. ^{[1
,2
]}

Tomashevich, E. V. ^{[3
]}

Dudnik, A. I. ^{[1
]}

Glushchenko, G. A. ^{[1
]}

Dubinina, I. A. ^{[1
,2
]}

Gulyaeva, U. E. ^{[1
,2
]}

Mel'nikova, E. I. ^{[2
]}

机构：

[1] Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia

[2] Siberian Fed Univ, Krasnoyarsk 660041, Russia

[3] Fed Res Ctr KSC SB RAS, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia

来源：

PHYSICS OF THE SOLID STATE | 2017年 / 59卷 / 08期

关键词：

FULLERENES; PRESSURE; PLASMA;

D O I：

10.1134/S1063783417080054

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Yttrium-containing endohedral metallofullerenes are synthesized in an RF arc discharge in the helium flow with embedded Y2O3. It is shown that the formation of the metallofullerenes depends on the helium pressure in a chamber; however, this dependence cannot be explained using the model of formation of conventional fullerenes without a guest atom in a molecule. The results of extraction of Y@C-82 by pyridine and carbon disulfide are reported. The pressure corresponding to the maximum yttrium-containing endohedral metallofullerene content is shown to be 60 kPa; under this pressure, extraction by carbon disulfide allows obtaining 27.1 wt % of the endohedral metallofullerene, while extraction by pyridine yields its amount of 17.3 wt %.

引用

页码：1662 / 1665

页数：4

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