Acta Crystallographica Section C

Crystal Structure Communications

Volume 62, Part 4 (April 2006)

metal-organic compounds

sk1898 scheme

Acta Cryst. (2006). C62, m144-m149 [ doi:10.1107/S0108270106005464 ]

Strontium diibuprofenate dihydrate, strontium malonate sesquihydrate, strontium diascorbate dihydrate and strontium 2-oxidobenzoate hydrate at 120 K

K. Stahl, J. E. T. Andersen and S. Christgau

Abstract: Four strontium(II) salts with organic acids have been studied. Poly[diaquadi- [mu] -ibuprofenato-strontium(II)] or poly[diaquabis[ [mu] -2-(4-isobutylphenyl)propionato]strontium(II)], [Sr(C₁₃H₁₇O₂)₂(H₂O)₂]_n, crystallizes with eight-coordinated Sr atoms. The coordination polyhedra are interconnected by edge-sharing to form chains. The Sr coordination chains are packed into layers, which are stacked by van der Waals interactions. Poly[ [mu] -aqua-diaquadi- [mu] -malonato-distrontium(II)], [Sr₂(C₃H₂O₄)₂(H₂O)₃]_n, crystallizes with nine-coordinated Sr atoms three-dimensionally interconnected into a framework structure. One of the two crystallographically independent water molecules is located on a twofold axial site. catena-Poly[[diaqua(ascorbato)strontium(II)]- [mu] -ascorbato], [Sr(C₆H₇O₆)₂(H₂O)₂]_n, crystallizes with isolated eight-coordinated Sr polyhedra. One of the ascorbate ligands bridges two Sr atoms, forming zigzag polyhedral ascorbate chains. These chains are tied together by a three-dimensional hydrogen-bonding network. Poly[aqua- [mu] -2-oxidobenzoato-strontium(II)], [Sr(C₇H₄O₃)(H₂O)]_n, crystallizes with eight-coordinated Sr atoms. The polyhedra are interconnected by face- and edge-sharing into layers. These layers are stacked by van der Waals forces between the protruding 2-oxidobenzoate ligands.

Formula: [Sr(C₁₃H₁₇O₂)₂(H₂O)₂]_n, [Sr₂(C₃H₂O₄)₂(H₂O)₃]_n, [Sr(C₆H₇O₆)₂(H₂O)₂]_n and [Sr(C₇H₄O₃)(H₂O)]_n


	Structure factor file (CIF format) (399.2 kbytes) [ doi:10.1107/S0108270106005464/sk1898Isup2.hkl ] Contains datablock I

	Structure factor file (CIF format) (84.2 kbytes) [ doi:10.1107/S0108270106005464/sk1898IIsup3.hkl ] Contains datablock II

	Structure factor file (CIF format) (231.6 kbytes) [ doi:10.1107/S0108270106005464/sk1898IIIsup4.hkl ] Contains datablock III

	Structure factor file (CIF format) (110.7 kbytes) [ doi:10.1107/S0108270106005464/sk1898IVsup5.hkl ] Contains datablock IV

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