Magenetic field induced proton transfer of 18-crown-6-ether/fluoroboric acid/water system: Crystal structure and Hirshfeld surfaces

作者：Chen, Chen; He, Chang; Zhu, Ying-Yu; He, Xiao-Tong; Hong, Dan-Li; Luo, Yang-Hui^*; Sun, Bai-Wang^*

来源：Polyhedron, 2018, 153: 64-68.

DOI：10.1016/j.poly.2018.06.043

• 18-Crown-6
• Proton transfer
• Magnetic field
• Crystal structure
• Hirshfeld surfaces

A new complex of the title system ([2(H3O+)center dot 18-crown-6]center dot 2[BF4-]), which was induced by external magnetic field, has been prepared and characterized. When compared with other two members of the same system, the proton transfer induced by magnetic field from HBF4 to H2O has leads to the co-plane of six oxygen atoms in the crown and stronger H-F and O-F intermolecular interactions, which can be attributed to the closer contacts between 18-crown-6, oxonium ion H3O+ and counterion BF4-. In addition, a compression effect of crystals stacking has been observed. These results are of importance for the evaluation the effect of magnetic field on the host-guest systems.

• 出版日期2018-10-1
• 单位东南大学