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Synthesis and structure of two polymeric barium-oxydiacetates: [Ba(oda) · H2O]n and [Ba(Hoda)2]n (H2oda: oxydiacetic acid) |
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| Authors: | Ricardo Baggio Gabriela Leyva Griselda Polla |
| Institution: | a Departamento de Física, Comisión Nacional de Energ?́a Atómica, Avda del Libertador 8250, 1429 Buenos Aires, Argentina b Departamento de F?́sica, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Avda. Blanco Encalada 2008, Casilla 487-3, Santiago, Chile c Departamento de Qu?́mica Inorgánica, Anal?́tica y Qu?́mica F?́sica, INQUIMAE, Facultad de Ciencias Exactasy Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II 1428, Buenos Aires, Argentina |
| Abstract: | The reaction of barium carbonate or hydroxide with oxydiacetic acid leads to the self-assembly of two barium oxydiacetate polymers in good yield: Ba(oda) · H2O]n (1) and Ba(Hoda)2]n (2). The products have been characterized by elemental analysis, IR, TGA and single crystal X-ray diffraction studies. The central barium atom in each mononuclear fragment is nine-coordinate in 1 and 10-coordinate in 2. These fragments are bridged by carboxylato groups in anti-anti conformation and through H-bonds bonding interactions forming complex 3D networks. |
| Keywords: | Barium complexes Carboxylates Crystal Structures Hydrogen bonds |
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