%0 Journal Article
%T Syntheses, Structures and Properties of 3d-4f Heterometallic Coordination Polymers Based on Tetradentate Metalloligand and Lanthanoid Ions
%A Xingnan Guo
%A Jun Qian
%A Qiang Zhou
%A Chi Zhang
%J Journal of Materials Science and Chemical Engineering
%P 163-179
%@ 2327-6053
%D 2018
%I Scientific Research Publishing
%R 10.4236/msce.2018.64016
%X Based on tetradentate metalloligand L<sup>Cu</sup> ([Cu(2,4-pydca)<sub>2</sub>], 2,4-pydca = pyridine-2,4-dicarboxylate) and lanthanides (Sm<sup>3+</sup>, Dy<sup>3+</sup>), two
3d-4fheterometalliccoordination polymers, namely,
{[Sm<sub>2</sub> (DMSO)<sub>4</sub> (CH<sub>3</sub>OH) <sub>2</sub>][L<sup>Cu</sup>]<sub>3</sub>¡¤7DMSO¡¤2CH<sub>3</sub>OH}<sub>n</sub> 1 and
{[Dy<sub>2</sub> (DMSO)<sub>3</sub> (CH<sub>3</sub>OH)][L<sup>Cu3</sup> (DMSO)]<span style=\"white-space:normal;\">¡¤</span>4DMSO<span style=\"white-space:normal;\">¡¤</span>CH<sub>3</sub>OH}<sub>n</sub> 2 (DMSO = dimethyl sulfoxide), have been synthesized and well characterized by elemental analysis, Fourier-transform infrared spectroscopy, thermogravimetric and single-crystal X-ray diffraction analysis. Single-crystal X-ray analysis reveals that both 1 and 2 crystallize in the triclinic crystal system with <i>P</i>-1 space group and possess the 3D framework structures, which are constructed from metalloligands L<sup>Cu</sup> connecting with {Sm<sub>2</sub>} and {Dy<sub>2</sub>} clusters, respectively. The 3D structure of 1 has a 6-connected single-nodal topology with the point symbol {4<sup>9</sup> ¡Á 6<sup>6</sup>}, while 2 features a different framework with the point symbol of {4<sup>12</sup> ¡Á 6<sup>3</sup>}. Thermogravimetric analysis exhibits that the skeleton of both 1 and 2 collapse after 350¡æ. Magnetic properties of 1 and 2 have also been investigated.
%K Coordination Polymers
%K {Sm&lt
%K sub&gt
%K 2&lt
%K /sub&gt
%K }/{Dy&lt
%K sub&gt
%K 2&lt
%K /sub&gt
%K } Clusters
%K Metalloligand
%K Crystal Structure
%K Magnetic Property
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=84237