Paper
Dalton Transactions
SHELXL-201540 program. All non-hydrogen atoms were refined
anisotropically. Hydrogen atoms were fixed at calculated posi-
tions and refined using a riding mode. The crystal parameters,
data collection, and refinement results for complexes 1–3 are
summarized in Table 3. Selected bond distances and angles
are listed in Table S1.† More details of the crystallographic
studies, as well as atom displacement parameters, are pre-
sented in the attached material called the CIF file.
Heavy metal ion adsorption experiments. All the adsorption
experiments were carried out in an aqueous solution system
using 10 mg of 1–3 and 5 mL of Hg2+ standard solutions,
respectively. The Hg2+ solution was prepared by dissolving
mercury acetate in deionized water and diluting to the desired
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Conflicts of interest
19 H. Furukawa, N. Ko, Y. B. Go, N. Aratani, S. B. Choi,
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There are no conflicts to declare.
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Acknowledgements
We thank the National Natural Science Foundation of China
(no. 81573386 and 81803354), the National Key R&D Program
of China (no. 2018YFC0807400), the Fundamental Research
Funds for the Central Universities (no. 2016ZPT005), the
Natural Science Foundation of Jiangsu Province of China (no.
BK20180564) and the China Postdoctoral Science Foundation-
funded project (no. 2017M620232) for financial support.
25 A. Abbasi, T. Moradpour and K. Van Hecke, Inorg. Chim.
Acta, 2015, 430, 261–267.
26 J. He, K.-K. Yee, Z. Xu, M. Zeller, A. D. Hunter, S. S.-Y. Chui
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17808 | Dalton Trans., 2019, 48, 17800–17809
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