Two- and three-dimensional hydrated coordination polymers of diaqua­lanthanum(3+) ions with 2-hydroxy­propane­dioate, oxalate and acetate anions as bridging ligands

Koner, R.; Goldberg, I.

doi:10.1107/S0108270109008798

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 2
The coordination environment of the La^III ion in (II)

, showing the atom-labelling scheme. Displacement ellipsoids are drawn at the 50% probability level at 110 (2) K and H atoms are shown as small spheres of arbitrary radii. The hydrogen bond to the noncoordinated water molecule is indicated by a dashed line. The La^III ions are located on a twofold rotation axis at ( $[5\over 8]$ , $[1\over 8]$ , z). The centre of the oxalate anion coincides with the 222 symmetry site at ( $[5\over 8]$ , $[1\over 8]$ , $[1\over 8]$ ). The noncoordinated O9 water molecule is located on a twofold rotation axis at ( $[3\over 8]$ , $[3\over 8]$ , z). [Symmetry codes: (i) $[{5\over 4}]$ − x, $[{1\over 4}]$ − y, z; (ii) 1 − x, −y, −z; (iii) x + $[{1\over 4}]$ , y + $[{1\over 4}]$ , −z.]

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 65| Part 4| March 2009| Pages m160-m164

doi:10.1107/S0108270109008798

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