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A very simple and efficient separation procedure for [60]fullerene from a fullerene mixture has been developed using the novel selective complexation of fullerenes with 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). From 3.3 kg of the fullerene mixture, 1.35 kg of pure [60]fullerene was obtained.
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Nagata et al. (2005) studied this question.
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