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

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Author list: Stahl K, Andersen JET, Christgau S

Publisher: International Union of Crystallography

Place: CHESTER

Publication year: 2006

Journal: Acta Crystallographica Section C: Structural Chemistry (2053-2296)

Journal acronym: ACTA CRYSTALLOGR C

Volume number: 62

Start page: M144

End page: M149

ISSN: 2053-2296

eISSN: 2053-2296

Languages: English-Great Britain (EN-GB)

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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(C-13- H17O2)(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)], [Sr-2(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.

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