Sulfate ion encapsulation in caged supramolecular structures assembled by second-sphere coordination |
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| Authors: | Wu Biao Liang Jianjun Yang Jin Jia Chuandong Yang Xiao-Juan Zhang Hongrui Tang Ning Janiak Christoph |
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| Institution: | State Key Laboratory for Oxo Synthesis & Selective Oxidation, Lanzhou Institute of Chemical Physics, CAS, Lonzhou 730000, China. wubiao@lzb.ac.cn |
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| Abstract: | A tripodal tris(3-pyridylurea) receptor (L) assembles with metal sulfate salts MSO(4) (M=Mn, Zn) to afford supramolecular cages SO(4) subset L(2)] that encapsulate the SO(4)(2-) ion via multiple hydrogen bonds in a three-dimensional structure held by second-sphere coordination; (1)H NMR and negative-ion mode ESI-MS spectra reveal significantly strong sulfate binding in solution. |
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