A flexible bis(pyridylcarbamate) anion receptor: Binding of infinite double-stranded phosphate, [-sulfate-(H2O)2-]n, and hydrogen-bridged helical perchlorate chain

Yana Xia, Biao Wu*, Yanyan Liu, Zaiwen Yang, Xiaojuan Huang, Li He, Xiao Juan Yang

*此作品的通讯作者

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摘要

Anion complexation of a flexible bis(pyridylcarbamate) receptor, 3-pyridinyl-carbamic-acid-1,2-ethanediylester (L), is reported. Upon addition of a series of inorganic acids (H3PO4, H2SO 4, HClO4, HCl and HBr), the ligand L can be doubly protonated and bind the anions through hydrogen bonding interactions, affording the adducts 1-5. The binding modes of the protonated ligand ([LH 2]2+) with anions in 1-5 in the solid state are established by X-ray single crystal diffraction. Of particular interest is that the three oxoanion complexes (1-3) feature intriguing anionic polymer fashions, such as the novel double-stranded dihydrogen phosphate chain in 1, the infinite [-sulfate-(H2O)2-]n chain in 2, and hydrogen-bridged helical perchlorate chain in 3. For complexes 4 and 5, the packing diagram displays a layered structure with the halide anions located between the adjacent cationic arrays. Receptor L can selectively crystallize with the sulfate anion from the acid mixture H3PO4, H 2SO4, HClO4, HCl and HBr.

源语言英语
页(从-至)1849-1856
页数8
期刊CrystEngComm
11
9
DOI
出版状态已出版 - 2009
已对外发布

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Xia, Y., Wu, B., Liu, Y., Yang, Z., Huang, X., He, L., & Yang, X. J. (2009). A flexible bis(pyridylcarbamate) anion receptor: Binding of infinite double-stranded phosphate, [-sulfate-(H2O)2-]n, and hydrogen-bridged helical perchlorate chain. CrystEngComm, 11(9), 1849-1856. https://doi.org/10.1039/b904253a