The title complex [Sm(o-MOBA)3(phen)·H2O]2·4H2O has been synthesized by the reaction of SmCl3·6H2O with o-methoxybenzoic acid and 1,10-phenanthroline in 1:3:1 molar ratio. The crystal structure was determined by X-ray single crystal diffraction. The crystal belongs to triclinic system, space group P(-1) with a=1.203 (10)nm, b=1.293(10) nm, c=1.306(11) nm, α=64.50(10)°,β=81.93(10)°, γ=74.81(10)°. The molecular structure shows that the Sm3+ ion coordinates to nine atoms. The carboxylate groups are bonded to the samarium ion in three modes: monodentate, bidentate chelating, tridentate chelating-bridging. CCDC: 603740.
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