Tetrakis(imidazolyl)borate-based coordination polymers: group II network solids,M[B(Im)4]2(H2O)2 (M = Mg,Ca, Sr) |
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Authors: | Hamilton Barton H Kelly Kathryn A Malasi Wilhelm Ziegler Christopher J |
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Affiliation: | Department of Chemistry, University of Akron, Akron, OH 44325-3601, USA. |
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Abstract: | We are using the coordinating anion tetrakis(imidazolyl)borate to construct new metal-organic framework structures. In this report, we present three alkaline earth metal network solids incorporating this anion. All three compounds have the same formula, M[B(Im)(4)](2)(H(2)O)(2) (M = Mg, Ca, Sr), and the same coordination environment about the metal. However, the three compounds have different network structures with different degrees of hydrogen bonding; the Mg material forms a two-dimensional network and the Ca and Sr compounds form one-dimensional chains. In addition, we present the structure of the protonated anion B(HIm)(Im)(3) as a model for the default structure of this anion and discuss how the conformation of tetrakis(imidazolyl)borate can affect the structure of network solids. |
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