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Synthesis and crystal structure of a one-dimensional chain-like strontium(II) coordination polymer built of N-methyldi-ethano-lamine and isobutyrate ligands.

ABSTRACT: The one-dimensional coordination polymer (I) [Sr(ib)2(H2mda)] n (Hib = isobutyric acid, C4H8O2, and H2mda = N-methyldi-ethano-lamine, C5H13NO2), namely, catena-poly[[(N-methyldi-ethano-lamine-κ3 O,N,O')strontium(II)]-di-μ2-isobutyrato-κ3 O,O':O;κ3 O:O,O'], was prepared by the one-pot aerobic reaction of [Zr6O4(OH)4(ib)12(H2O)]·3Hib with Sr(NO3)2 and H2mda in the presence of MnCl2 and Et3N in aceto-nitrile. The use of MnCl2 is key to the isolation of I as high-quality colorless crystals in good yield. The mol-ecular solid-state structure of I was determined by single-crystal X-ray diffraction. Compound I crystallizes in the monoclinic space group P21/c and shows a one-dimensional polymeric chain structure. Each monomeric unit of this coordination polymer consists of a central SrII ion in the NO8 coordination environment of two deprotonated ib- ligands and one fully protonated H2mda ligand. The C and O atoms of the H2mda ligand were refined as disordered over two sets of sites with site occupancies of 0.619 (3) and 0.381 (3). Compound I shows thermal stability up to 130°C in air.

SUBMITTER: Seiss M 

PROVIDER: S-EPMC8382055 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature

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Synthesis and crystal structure of a one-dimensional chain-like strontium(II) coordination polymer built of <i>N</i>-methyldi-ethano-lamine and isobutyrate ligands.

Seiss Maximilian M   Schmitz Sebastian S   Börner Martin M   Monakhov Kirill Yu KY  

Acta crystallographica. Section E, Crystallographic communications 20210611 Pt 7

The one-dimensional coordination polymer (<b>I</b>) [Sr(ib)<sub>2</sub>(H<sub>2</sub>mda)] <sub><i>n</i></sub> (Hib = isobutyric acid, C<sub>4</sub>H<sub>8</sub>O<sub>2</sub>, and H<sub>2</sub>mda = <i>N</i>-methyldi-ethano-lamine, C<sub>5</sub>H<sub>13</sub>NO<sub>2</sub>), namely, <i>catena</i>-poly[[(<i>N</i>-methyldi-ethano-lamine-κ<sup>3</sup> <i>O</i>,<i>N</i>,<i>O</i>')strontium(II)]-di-μ<sub>2</sub>-isobutyrato-κ<sup>3</sup> <i>O</i>,<i>O</i>':<i>O</i>;κ<sup>3</sup> <i>O</i>:<i>O</i>,<i>  ...[more]

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