Abstract: Photolysis of aminopolycarboxylates with C₆₀ has been shown to be an effective method for the preparation of isomerically pure fullerene derivatives. A series of fullerroaminopolycar-boxylate derivatives have been prepared by this method. For example, glycine esters react with C₆₀ to give C₆₀(ROOCCHNHCHCOOR), the mechanism of which is proposed to involve complicated bond breaking and formation processes. Aminoacid esters with secondary and tertiary amino groups can add to C₆₀ by simply losing two H atoms. Irradiation of tetramethyl ethylenediaminetetraacetate(EDTA) with C₆₀ yields the EDTA containing fullerene monoadduct C₆₀(MeOOCCH)₂NCH₂CH₂N(CH₂COOMe)₂. Compared to well-known 1, 3-dipole addition method of fulleropyrrolidine preparation, the photoreaction reported here avoids the use of aldehydes or ketones and is specially suited for the preparation of the fullerene containing complexones such as the EDTA C₆₀ derivative. Langmuir-Blodgett film formation and the photoelectric properties of these fulleropyrrolidine compounds are investigated. Due to the presence of hydrophilic groups the derivatives form stable and transferable monolayer. By using metal ion sonlution as the subphase, metal complexes of the fullerocarboxylic derivatives are prepared at the air/water interface. Photoelctrical behavior of the LB film fabricated on ITO are studied under various conditions. For most of the compounds electrons flow from the electrolyte through the LB film to the ITO. The quantum yield of the fullerene derivatives can reach 8%.

Key words: C₆₀, aminopolycarboxylicacid, photo current

摘要： 光照条件下C₆₀能与一系列氨基多羧酸反应生成单加成衍生物。利用这一方法合成了一系列C₆₀氨基多羧酸衍生物。如甘氨酸脂与C₆₀光照下反应生成C₆₀(ROOCCHNHCHCOOR)，该反应机理比较复杂，其他的亚氨基及次氨基羧酸脂的反应机理相对较简单。EDTA甲脂与C₆₀光照下反应生成C₆₀[(MeOOCCH)₂NCH₂CH₂N(CH₂COOMe)₂]，净的结果就是EDTA失去2个H原子。这些含强亲水基团的C₆₀多羧基衍生物都有很好的成膜性能，能够生成稳定且易转移的单分子膜。通过使用金属离子溶液作为亚相，可在空气/水界面制备相应金属离子的C₆₀衍生物配合物膜。LB膜的光电测定结果表明大部分C₆₀衍生物均具有阴极光电流，即电子从电解质流经LB膜再流向电极，最高光电转换量子产率为8%左右。

关键词: C₆₀, 氨基多羧酸, 光电流