Evidence for rare gas endohedral fullerene formation from γ recoil from HPLC studies

被引：26

作者：

Gadd, GE ^{[1
]}

Schmidt, P ^{[1
]}

Bowles, C ^{[1
]}

McOrist, G ^{[1
]}

Evans, PJ ^{[1
]}

Wood, J ^{[1
]}

Smith, L ^{[1
]}

Dixon, A ^{[1
]}

Easey, J ^{[1
]}

机构：

[1] Australian Nucl Sci & Technol Org, Menai, NSW 2234, Australia

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1998年 / 120卷 / 40期

关键词：

D O I：

10.1021/ja9806276

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this paper, we present the first direct evidence for the formation of endohedral fullerenes from prompt gamma emission of neutron irradiated Xe held interstitially in the C-60 lattice. Following neutron activation, solutions of the irradiated solid were analyzed by high-pressure liquid chromatography and gamma spectroscopy which showed Xe radioisotopes to be present in fractions that eluted at longer times relative to untreated C-60. The observation of Xe radioisotopes at these articular times was attributed to elution of compounds based on Xe@C-60. Additional support for this conclusion was obtained from isotopic ratios measured by gamma spectroscopy. The present results provide convincing evidence in support of the gamma recoil mechanism for trapping radionuclides in fullerene cages which had previously been inferred from indirect evidence.

引用

页码：10322 / 10325

页数：4

共 14 条

[1] ENDOHEDRAL INCORPORATION OF ARGON ATOMS INTO C-60 BY NEUTRON-IRRADIATION [J].

BRAUN, T ;

RAUSCH, H .

CHEMICAL PHYSICS LETTERS, 1995, 237 (5-6) :443-447

[2] The intercalation of Ar into C-60 films [J].

Gadd, GE ;

Evans, PJ ;

Moricca, S ;

James, M .

JOURNAL OF MATERIALS RESEARCH, 1997, 12 (01) :1-4

[3] Structural characterisation of the new fullerene rare gas compound Ar1C60 [J].

Gadd, GE ;

James, M ;

Moricca, S ;

Evans, PJ ;

Davis, RL .

FULLERENE SCIENCE AND TECHNOLOGY, 1996, 4 (05) :853-862

[4] Novel rare gas interstitial fullerenes of C60 with Ar, Kr and Xe [J].

Gadd, GE ;

Moricca, S ;

Kennedy, SJ ;

Elcombe, MM ;

Evans, PJ ;

Blackford, M ;

Cassidy, D ;

Howard, CJ ;

Prasad, P ;

Hanna, JV ;

Burchwood, A ;

Levy, D .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1997, 58 (11) :1823-1832

[5] Endohedral fullerene formation through prompt gamma recoil [J].

Gadd, GE ;

Evans, PJ ;

Hurwood, DJ ;

Morgan, PL ;

Moricca, S ;

Webb, N ;

Holmes, J ;

McOrist, G ;

Wall, T ;

Blackford, M ;

Cassidy, D ;

Elcombe, M ;

Noorman, JT ;

Johnson, P ;

Prasad, P .

CHEMICAL PHYSICS LETTERS, 1997, 270 (1-2) :108-114

[6] Endohedral formation from neutron activation of interstitial rare gas C-60 fullerides [J].

Gadd, GE ;

Evans, PJ ;

Hurwood, DJ ;

Moricca, S ;

McOrist, G ;

Wall, T ;

Elcombe, M ;

Prasad, P .

FULLERENE SCIENCE AND TECHNOLOGY, 1997, 5 (05) :871-902

[7] Neutron irradiation of Ar1C60 [J].

Gadd, GE ;

Evans, PJ ;

Hurwood, DJ ;

Wood, J ;

Moricca, S ;

Blackford, M ;

Elcombe, M ;

Kennedy, S ;

James, M .

CHEMICAL PHYSICS LETTERS, 1996, 261 (03) :221-227

[8] Extraction and HPLC purification of Li@C-60/70 [J].

Gromov, A ;

Kratschmer, W ;

Krawez, N ;

Tellgmann, R ;

Campbell, EEB .

CHEMICAL COMMUNICATIONS, 1997, (20) :2003-2004

[9]

Grushko YS, 1996, MOL CRYST LIQ CRYS C, V7, P115

[10] ENCAPSULATION OF RADIOACTIVE GD-159 AND TB-161 ATOMS IN FULLERENE CAGES [J].

KIKUCHI, K ;

KOBAYASHI, K ;

SUEKI, K ;

SUZUKI, S ;

NAKAHARA, H ;

ACHIBA, Y ;

TOMURA, K ;

KATADA, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (21) :9775-9776

← 1 2 →