题干

中科院化学所合成了一种茚双加成C60衍生物ICBA(见图),以其为受体与聚(3-己基噻吩) (P3HT)共混制备的聚合物太阳能电池能量转换效率达到5.44%。有关该技术的下列说法正确的是

A:合成ICBA用到的原料茚不能使酸性KMnO4溶液褪色

B:C60是碳元素的一种同位素

C:反应2属于加成反应

D:ICBA与C60互为同素异形体

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C

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