Abstract
The reaction of lithium perchlorate salt and 18-crown-6 (18C-6) in the commercial tetrahydrofuran (THF) solvent leads to a novel important intermediate Li(18C-6)(H2O)2(ClO4)⋅0.5((18C-6)⋅THF) (1). The crystal structure shows it as a mononuclear lithium complex, and the asymmetric unit contains a Li(H2O)2(18C-6) moiety, one half of the 18C-6 guest molecule, one half of the disordered THF solvent molecule, and a perchlorate anion. Solid-state photoluminescence experiments show that complex 1 emits violet luminescence, and its possible emission mechanism is investigated in detail based on theoretical calculations.
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Funding
We gratefully acknowledge the financial support of the National Natural Science Foundation of China (21071156), the Natural Science Foundation of Chongqing (CSTC2015JCYJA50007), and the Project of International Science and Technology Cooperation Base Construction in Chongqing (CSTC2014GJHZ20002).
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Text © The Author(s), 2019, published in Zhurnal Strukturnoi Khimii, 2019, Vol. 60, No. 7, pp. 1165-1171.
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Jian, Y.F., Fu, B., Fu, S. et al. Synthesis, Crystal Structure, and Photoluminescence of a Lithium Perchlorate Complex with 18-Crown-6. J Struct Chem 60, 1119–1125 (2019). https://doi.org/10.1134/S0022476619070138
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DOI: https://doi.org/10.1134/S0022476619070138