Received 4 December 2012
aChemical Engineering College, Inner Mongolia University of Technology, People's Republic of China,bBeijing National Laboratory for Molecular Sciences, The State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing, People's Republic of China, and cState Key Laboratory of Nuclear Physics and Technology, Institute of Heavy Ion Physics, School of Physics, Peking University, Beijing, People's Republic of China
Correspondence e-mail: firstname.lastname@example.org
The title SmIII-erythritol complex, [Sm(NO3)3(C2H6O)(C4H10O4)], is isotypic with its Nd, Eu, Y, Gd, Tb and Ho analogues. The SmIII cation exhibits a coordination number of ten and is chelated by a tridentate erythritol ligand and three bidentate nitrate anions. It is additionally coordinated by an O atom of an ethanol molecule, completing an irregular coordination sphere. The Sm-O bond lengths range from 2.416 (2) to 2.611 (2) Å. In the crystal, extensive O-HO hydrogen bonding involving all hydroxy groups and some of the nitrate O atoms links the molecules into a three-dimensional network.
For background to the coordination behaviour of sugars to metal cations, see: Gottschaldt & Schubert (2009). For the crystal structure of free erythritol, see: Bekoe & Powell (1959). For isotypic structures of the title compound, see: Yang et al. (2003, 2004, 2012); Hua et al. (2013).
Data collection: CrystalClear (Rigaku, 2007); cell refinement: CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: XP in SHELXTL; software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: WM2711 ).
This work was supported financially by the National Natural Science Foundation of China (grants Nos. 50973003 and 21001009) and the National High-Tech R&D Program of China (863 Program) of MOST (No. 2010 A A03A406). Special thanks to Drs Hao, Wang and Liang for their assistance with the data collection.
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