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A 3d 4f complex [La(DMF) 6(H 2O) 3]·2H 2O (DMF=N,N dimethylformamide) was prepared and characterized by single crystal structure analysis. Single crystal X ray diffraction analysis reveals that the present complex contains 3- and [La(DMF) 6(H 2O) 3] 3+ ionic pairs. The La(Ⅲ) ion is nine coordinate, and is coordinated by seven oxygen atoms of three water molecules and six DMF molecules. Each terminal CN ligand of the 3- entity is hydrogen bonded to oxygen atoms of the coordinated and lattice water molecules producing a three dimensional network. Crystal data for [La(DMF) 5(H 2O) 3]·2H 2O (C 24 H 52 CrLaN 12 O 11 =875.69): orthorhombic, space group Cmca, with lattice parameters of a =1.9346(2) nm, b =2.8902(2) nm, c =1.4825(2) nm, V =8.289(2) nm 3, Z =8, S =1.074, ρ calc =1.403 g·cm -3 , R 1=0.046, wR 2=0 117 based on 244 parameters for 5083 observed ( I >2 σ ( I )) reflections.
A 3d 4f complex [La (DMF) 6 (H 2 O) 3] · 2H 2O (DMF = N, N dimethylformamide) was prepared and characterized by single crystal structure analysis. Single crystal X ray diffraction analysis reveals that the present complex contains 3 - La (DMF) 6 (H 2 O) 3] 3+ ionic pairs. The La (Ⅲ) ion is nine coordinate, and is coordinated by seven oxygen atoms of three water molecules and six DMF molecules. Each terminal CN ligand of Crystal data for [La (DMF) 5 (H 2 O) 3] · 2H 2O (C 24 H 52 CrLaN 12 O 11 = 875.69): orthorhombic space group Cmca with lattice parameters of a = 1.9346 (2) nm, b = 2.8902 (2) nm, c = 1.4825 , S = 1.074, p calc = 1.403 g · cm -3, R 1 = 0.046, wR 2 = 0 117 based on 244 parameters for 5083 observed (I> 2 σ (I)) reflections.