pH-controlled the formation of 4-sulfocalix[4]arene-based 1D and 2D coordination polymers |
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| Affiliation: | 1. Department of General and Coordination Chemistry, Maria Curie-Sklodowska University, Maria Curie-Sklodowska sq. 2, 20-031 Lublin, Poland;2. Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Kraków, Poland;3. Department of Crystallography, Maria Curie-Sklodowska University, Maria Curie-Sklodowska sq. 3, 20-031 Lublin, Poland;4. Faculty of Chemistry, University of Wroc?aw, F. Joliot Curie 14, 50-383 Wroc?aw, Poland |
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| Abstract: | Three manganese/4-sulfocalix4]arene complexes, namely, {H(C28H20O16S4)Mn(H2O)4Mn0.5(H2O)2]}n ·6nH2O (1), {NH4(C28H20O16S4)Mn(H2O)4Mn0.5(H2O)2]}n · 5nH2O (2), (C28H20O16S4)Mn2(H2O)8]n · 6nH2O (3), have been synthesized under different pH conditions. Complex 1, which exhibits a one-dimensional (1D) structure, is formed at H+] = 2.0 mol L?1. Reaction at pH 4 leads to another one-dimensional (1D) coordination polymer of 2. At pH 5, a two-dimensional (2D) coordination polymer of complex 3 is formed, showing clearly structural effects on pH response. |
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