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Acta Cryst. (2013). E69, m628
[ doi:10.1107/S1600536813029395 ]


G. Smith

Abstract: In the structure of the title complex, [Cs(C8H4Cl3O2)(H2O)]n, the caesium salt of the commercial herbicide fenac [(2,3,6-tri­chloro­phen­yl)acetic acid], the irregular eight-coordination about Cs+ comprises a bidentate O:Cl-chelate inter­action involving a carboxyl­ate-O atom and an ortho-related ring-substituted Cl atom, which is also bridging, a triple-bridging carboxyl­ate-O atom and a bridging water mol­ecule. A two-dimensional polymer is generated, lying parallel to (100), within which there are water-carboxyl­ate O-H...O hy­dro­gen-bonding inter­actions.

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