期刊论文

Pan, Fangfang;Rissanen, Kari

英文

CHEMISTRY-A EUROPEAN JOURNAL

0947-6539

2019

25

31

7485-7488

10.1002/chem.201901734

We gratefully acknowledge financial support from the National Natural Science Foundation of China (NSFC, F.P.: grant no. 21602071), the Fundamental Research Funds for the Central Universities (F.P.: grant no. CCNU17QN006), Central China Normal University, China, and the University of Jyväskylä, Finland. This work was supported by the Program of Introducing Talents of Discipline to Universities of China (111 program, B17019).

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Co-crystallizing iodine with a simple dicationic salt (1,8-diammoniumoctane chloride) results in the clathration of the iodine (I2) molecules inside trigonal and hexagonal helical channels of the crystal lattice with 72 wt % overall I2 loading. The I2 inside the bigger trigonal channel forms a I−I⋅⋅⋅I−I⋅⋅⋅I−I halogen-bonded infinite helical chain, while the I2 in the smaller hexagonal channel is disordered. In both channels the I2 interaction with the channel wall happens through I−I⋅⋅⋅Cl− halogen bonds. The helical channels in th...