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Synthesis and crystal structure of a new coordination polymer based on lanthanum and 1,4-phenylenediacetate ligands

Abstract : Reaction in gel between the sodium salt of 1,4-phenylenediacetic acid (Na 2 C 10 O 4 H 8 –Na 2 p -pda) and lanthanum chloride yields single crystals of the three-dimensional coordination polymer poly[[tetraaquatris(μ-1,4-phenylenediacetato)dilanthanum(III)] octahydrate], {[La 2 (C 10 H 8 O 4 ) 3 (H 2 O) 4 ]·8H 2 O} ∞ . The La III coordination polyhedron can be described as a slightly distorted monocapped square antiprism. One of the two p -pda 2− ligands is bound to four La III ions and the other to two La III ions. Each La III atom is coordinated by five ligands, thereby generating a metal–organic framework with potential porosity properties.
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Magatte Camara, Insa Badiane, Mamoudou Diallo, Carole Daiguebonne, Olivier Guillou. Synthesis and crystal structure of a new coordination polymer based on lanthanum and 1,4-phenylenediacetate ligands. Acta crystallographica. Section E, Crystallographic communications, International Union of Crystallography, 2019, 75 (3), pp.378-382. ⟨10.1107/S2056989019002378⟩. ⟨hal-02086461⟩

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