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catena-Poly[[aqua(N,N-dimethylformamide-κO)strontium(II)]-bis[μ-2-(4-carboxyphenoxy)propionato-κ3O,O′:O′]]

✍ Scribed by Kong, Li-Li ;Gao, Shan ;Huo, Li-Hua ;Ng, Seik Weng

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
609 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

In the crystal structure of the polymeric title compound, [Sr(C~10~H~9~O~5~)~2~(C~3~H~7~NO)(H~2~O)]~n~, the Sr^II^ atom is O,O′-chelated by the carboxylate end of two 2-(4-carboxyphenoxy)propionate monoanions, and is coordinated by a water molecule and a dimethylformamide (DMF) molecule. It also interacts with the carboxylate O atom of two adjacent monoanions; these bonds give rise to a zigzag chain along the a axis. Meanwhile, the carboxyl –CO~2~H end of the anion interacts with an acceptor site [O...O = 2.629 (4) Å]; this interaction and hydrogen bonding involving the water molecule [O...O = 3.191 (5) Å] give rise to a three-dimensional network. The eight coordinating O atoms comprise an irregular polyhedron around the metal atom. The Sr atom, the water O atom, and the N and O atoms of the DMF molecule lie on a special position of site symmetry m; the DMF molecule is disordered about the mirror plane.

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