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Acta Crystallogr Sect E Struct Rep Online. 2011 Jul 01;67:m836. doi: 10.1107/S1600536811020058. Epub 2011 Jun 04.

Poly[dimethyl-ammonium [aquadi-μ(2)-oxalato-samarate(III)] trihydrate].

Acta crystallographica. Section E, Structure reports online

Yao-Kang Lv, Li-Hua Gan, Ming-Xian Liu, Wei Xiong


  1. Department of Chemistry, Tongji University, Shanghai 200092, People's Republic of China.

PMID: 21836843 PMCID: PMC3152119 DOI: 10.1107/S1600536811020058


In the title complex, {(C(2)H(8)N)[Sm(C(2)O(4))(2)(H(2)O)]·3H(2)O}(n), the Sm(III) atom is chelated by four oxalate ligands and one water mol-ecule forming a distorted tricapped trigonal-prismatic geometry. Each oxalate ligand chelates to two Sm(III) atoms, generating a three-dimensional anionic network with cavities in which the ammonium cations and lattice water mol-ecules reside. Various O-H⋯O, N-H⋯O and C-H⋯O hydrogen-bonding inter-actions further stablize the crystal structure.


  1. Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22 - PubMed
  2. Acta Crystallogr Sect E Struct Rep Online. 2010 Jul 07;66(Pt 8):m901-2 - PubMed
  3. Acta Crystallogr Sect E Struct Rep Online. 2010 Oct 23;66(Pt 11):m1440 - PubMed

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