Received 15 July 2010
In the title mononuclear complex, [La(NO3)3(C22H26N2O4)]·CH3OH, the LaIII ion is coordinated by three bidentate nitrate counter-ions and one zwitterionic 6,6'-dimethoxy-2,2'-[(cyclohexane-1,2- diyl)bis(nitriliomethylidyne)]diphenolate ligand through two phenolate and two methoxy O atoms, while the protonated N atoms remain uncoordinated. H atoms located on the two N atoms are involved in intramolecular hydrogen bonds with the deprotonated phenol O atoms, indicating that proton migration occurs during the lanthanum complexation.
Data collection: RAPID-AUTO (Rigaku, 1998); cell refinement: RAPID-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: VM2037 ).
This work was supported financially by the National Natural Science Foundation of China (Nos. 20872030 and 20972043), Heilongjiang Province (Nos. 2009RFXXG201, GC09A402 and 2010 t d03) and Heilongjiang University.
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