Journal of Chemical Crystallography

, Volume 41, Issue 1, pp 77–81 | Cite as

Synthesis, Crystal Structure and Magnetic Property of a One-Dimensional Samarium(III) Coordination Polymer



A novel samarium(III) polymer, [Sm2(C6H5COO)6(CH3OH)3]·CH3OH (1) has been synthesized and characterized by single crystal X-ray diffraction and magnetic measurements. Polymer 1 crystallizes in monoclinic space group P2(1)/c, with a = 15.1247(6), b = 18.3351(7), c = 21.1266(6) Å, β = 126.830(2)°, V = 4689.4(3) Å3, and Z = 4. Single crystal X-ray analysis reveals a chain-like structure of 1 consisted of alternating eight- and nine-coordinate Sm(III) ions bridged by benzoate ligands in different coordination modes. A treatment of the variable-temperature magnetic susceptibility using an expression deduced from free-ion approximation and molecular field theory suggests the existence of a weak antiferromagnetic coupling between the samarium ions.

Graphical Abstract

A novel one-dimensional samarium polymer containing alternating eight- and nine-coordinate Sm(III) ions has been generated by incorporating benzoic acid in three different binding modes in its deprotonated state.


Samarium(III) coordination polymer Crystal structure Magnetic property 



We thank the Changchun Institute of Applied Chemistry (Start-up) and the National Natural Science Foundation of China (Grants 20871113 and 20921002) for their financial support.


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© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  1. 1.School of Chemistry and Environmental EngineeringChangchun University of Science and TechnologyChangchunChina
  2. 2.State Key Laboratory of Rare Earth Resource UtilizationChangchun Institute of Applied Chemistry, Chinese Academy of SciencesChangchunChina

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