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The Lanthanum picrate complex with 1,10 phenanthroline was synthesized, whose chemical formula can be written in [La(pic)3(phen)2]·CH3CN. The crystal X ray diffraction analysis shows that crystal belongs to monoclinic with space group P21/a and unit cell parameters:a=17.072(4),b=16.083(4),c=17.789(4),β=106.34(2)°,V=4687(4)3, Z=4,Dc=1.735g·cm3, μ=10.106cm 1,F(000)=2448,R=0.0589,Rw=0.0589. The coordination number of La3+is nine. Acetonitrile, a solvent molecule is not coordinated. Between three Pic ligands, that possesses 2 bidentate forms six member ring with La. The other is unidentate ligand. As usually, phen is bidentate ligand.
The Lanthanum picrate complex with 1,10 phenanthroline was synthesized, whose chemical formula can be written in [La (pic) 3 (phen) 2] .CH3CN. The crystal X ray diffraction analysis shows that crystal belongs to monoclinic with space group P21 / a and unit cell parameters: a = 17.072 4, b = 16.083 4, c = 17.789 4, β = 106.34 2, V = 4687 4, Z = 4, Dc = 1.735 g · cm3, μ = 10.106cm 1, F (000) = 2448, R = 0.0589, Rw = 0.0589. The coordination number of La3 + is nine. Acetonitrile, a solvent molecule is not coordinated. Between three Pic ligands, that possesses 2 bidentate forms six member ring with La. The other is unidentate ligand. As usually, phen is bidentate ligand.