Author(s)

Xingnan Guo¹, Jun Qian^1*, Qiang Zhou¹, Chi Zhang^2*

¹School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, China.
²China-Australia Joint Research Center for Functional Molecular Materials, Jiangsu University, Zhenjiang, China.

Based on tetradentate metalloligand L^Cu ([Cu(2,4-pydca)₂], 2,4-pydca = pyridine-2,4-dicarboxylate) and lanthanides (Sm³⁺, Dy³⁺), two 3d-4fheterometalliccoordination polymers, namely, {[Sm₂ (DMSO)₄ (CH₃OH) ₂][L^Cu]₃·7DMSO·2CH₃OH}_n 1 and {[Dy₂ (DMSO)₃ (CH₃OH)][L^Cu3 (DMSO)]·4DMSO·CH₃OH}_n 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 P-1 space group and possess the 3D framework structures, which are constructed from metalloligands L^Cu connecting with {Sm₂} and {Dy₂} clusters, respectively. The 3D structure of 1 has a 6-connected single-nodal topology with the point symbol {4⁹ × 6⁶}, while 2 features a different framework with the point symbol of {4¹² × 6³}. Thermogravimetric analysis exhibits that the skeleton of both 1 and 2 collapse after 350℃. Magnetic properties of 1 and 2 have also been investigated.

Coordination Polymers, {Sm₂}/{Dy₂} Clusters, Metalloligand, Crystal Structure, Magnetic Property

Guo, X. , Qian, J. , Zhou, Q. and Zhang, C. (2018) Syntheses, Structures and Properties of 3d-4f Heterometallic Coordination Polymers Based on Tetradentate Metalloligand and Lanthanoid Ions. Journal of Materials Science and Chemical Engineering, 6, 163-179. doi: 10.4236/msce.2018.64016.