Doryokuro Kakunenryo Kaihatsu Jigyodan

Hideyuki Funasaka

Takeshi Akasaka

Kazunori Yamamoto

Takeshi Takahashi

Tatsuhisa Kato

Kaoru Kobayashi

Shigeru Nagase

Yusei Maruyama

Toshiyasu Suzuki

A novel metal-encapsulated fullerene compound wherein a side chain is introduced in a metal-encapsulated fullerene is provided. A metal-encapsulated fullerene compound represented by the following structural formula (1) is synthesized by causing a disilirane derivative or digermirane derivative having the following structural formula (2) to react with a metal-encapsulation fullerene so as to add functional groups to the fullerene. ##STR1## Herein, M is an encapsulated metal atom, m is an integer from 1 to 3, n is an even number from 28 to 200, and R is a t-butyl group or an aromatic group having alkyl groups in the 2,6-positions, such as mesityl, 2,6-diethylphenyl or 2,6-dimethylphenyl groups.

Metal-encapsulated fullerene compound and a method of synthesizing such

There are provided a derivative of a metal-encapsulated fullerene having application as a functional material, superconducting material, electronics material or pharmaceutical material, and a method of synthesizing this derivative. The derivative of a metal-encapsulated fullerene having the following structure is synthesized by adding a substituted diazomethane to a metal-encapsulated fullerene and denitrifying in a solvent. ##STR1##

Metal-encapsulated fullerene derivative compound of and method for

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Hitachinaka, Japan

Hideyuki Funasaka