Synthesis and Structural Characterization of Molecular Dy(III) and Er(III) Tetra-Carbonates

Single crystal structures of lanthanide carbonate and hydroxy-carbonate compounds have been previously reported in the literature, with the majority of these compounds being extended one- to three-dimensional compounds. Very few lanthanide compounds have been isolated that contain molecular moieties...

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Published in:Inorganic chemistry 2010-07, Vol.49 (14), p.6558-6564
Main Authors: Goff, George S, Cisneros, Michael R, Kluk, Chandra, Williamson, Kevin, Scott, Brian, Reilly, Sean, Runde, Wolfgang
Format: Article
Language:English
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Summary:Single crystal structures of lanthanide carbonate and hydroxy-carbonate compounds have been previously reported in the literature, with the majority of these compounds being extended one- to three-dimensional compounds. Very few lanthanide compounds have been isolated that contain molecular moieties, and none have been reported for either erbium or dysprosium. Single crystals of the tetra-carbonate complexes, [C(NH2)3]5[Er(CO3)4]·11H2O (I) and [C(NH2)3]4[Dy(CO3)4(H2O)](H3O)·13H2O (II), were isolated from concentrated guanidinium carbonate solutions and characterized by single crystal X-ray diffraction studies. Compounds I and II are the first reported molecular carbonate structures for Er and Dy to be characterized via single crystal X-ray diffraction studies. Crystallographic data for I: monoclinic, space group P21/n, a = 8.8160(6) Å, b = 21.0121(14) Å, c = 19.6496(14) Å, Z = 4. Data for II: tetragonal, space group P4/n, a = b = 15.3199(11) Å, c = 7.5129(11) Å, Z = 2.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic1004598