From 3He@C60 to 3H@C60:: Hot-atom incorporation of tritium in C60

被引：10

作者：

Khong, A ^{[1
]}

Cross, RJ ^{[1
]}

Saunders, M ^{[1
]}

机构：

[1] Yale Univ, Dept Chem, New Haven, CT 06520 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2000年 / 104卷 / 17期

关键词：

D O I：

10.1021/jp994289m

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The introduction of tritium into the cavity of C-60 using hot-atom chemistry was studied. Neutron irradiation of He-3 in He-3@C-60 produced tritium ions and atoms which enter the C-60 H-3@C-60 was detected with a scintillation counter. The Bingel reaction was carried out on this material under conditions so that the monoadduct formed predominantly, and the products were probed for tritium activity. Analysis with He-3 NMR gave a peak with the characteristic He-3 shift for the malonate product. The product fractions gave only 33% of the original activity; most was recovered in the unreacted C-60 portion, No reaction was observed between C-60 and the stable radical di-tert-butylnitroxide; all tritium activity was recovered in the Coo peak. These results suggest similarities in properties between H-3@C-60 and pure C-60, implying that the tritium exists as a free atom inside the molecule.

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页码：3940 / 3943

页数：4

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