Skip to main content
Article thumbnail
Location of Repository

Redetermination at 180 K of a layered lanthanide–organic framework

By Patrícia Silva, José A. Fernandes and Filipe A. Almeida Paz


The asymmetric unit of the title compound, poly[(μ4-{[bis­(hydrogen phospho­natometh­yl)aza­nium­yl]meth­yl}phospho­nato)lanthanum(III)], [La(C3H9NO9P3)]n, comprises an La3+ center and a H3nmp3− anion (where H3nmp3− is a residue of partially deprotonated nitrilo­tris­(methyl­ene­phospho­nic acid), namely {[bis­(hydrogen phospho­natometh­yl)aza­nium­yl]meth­yl}­phos­pho­nate). This study concerns a structural redetermination using single-crystal X-ray diffraction data, collected at the low temperature of 180 K, of a recently investigated material whose structural details have been proposed from powder X-ray diffraction studies [Silva et al. (2011 ▶). J. Am. Chem. Soc. 133, 15120–15138]. The main difference between the two models rests on the position of the H atoms. While two H atoms were modeled as attached to the same phospho­nate group in the powder determination, in the current model, the same H atoms are instead distributed among two of these groups. The sample studied was an inversion twin

Topics: Metal-Organic Papers
Publisher: International Union of Crystallography
OAI identifier:
Provided by: PubMed Central
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.pubmedcentral.nih.g... (external link)
  • Suggested articles


    1. (2009). DIAMOND. Crystal Impact GbR,
    2. Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) xy zU iso*/Ueq
    3. (2011). metal-organic compounds Acta Cryst.

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.