Open‐Cage Fullerene as Molecular Container for F−, Cl−, Br− and I−

• DOI: 10.1002/anie.202212090
• Publication Date: 2022-11-01T04:09:56Z
• Authors: Shijun Sun; Zhen Liu; Francesca Colombo; Rui Gao; Yuming Yu; Yi Qiu; Jie Su; Liangbing Gan
• Keywords: Moiety

A 19-membered open-cage fullerene derivative was prepared from C60 in 7 steps and 5.5 % yield through the peroxide-mediate pathway. There are four carbonyl groups, an ether oxygen a quinoxaline moiety on rim of orifice. chloride anion could be inserted into its cavity by heating with hydrochloric acid at 60 °C for 4 h. Encapsulation fluoride, bromide iodide anions also achieved slightly more forcing conditions, 90 14 Single crystal X-ray structures sodium salt encapsulated derivatives were obtained, which showed halide center two cations connecting cages coordination to atoms orifices. The encapsulation ratio is quantitative isolated products.