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The La(III) complex with a new amide-type tripodal ligand, 2,2,2-nitrilotris{[(2-benzylaminoformyl)- phenoxy]ethyl}amine (L), was synthesized and characterized by X-ray crystallographic analysis. Crystal data: C48H55.50LaN7O18.75, Mr=1169.40, monoclinic, space group, P21/n, a=1.0644(3) nm, b=2.3889(5) nm, c=2.1917(5) nm, b=90.65, V=5.573(2) nm3, Z=1, Dc=1.394 gcm-3, R1=0.0487, wR [I>2s(I)]=0.1266. The results reveal that each La(III) ion binds to 9 oxygen atoms, three of which belong to carbonyl groups from three tripodal ligands and six to three bidentate nitrate groups and a two-dimensional sheet of 4.82 networks is assembled by metal-ligand coordination interaction. L, a heptadentate compound, merely acts as a tridentate bridging spacer due to its steric hindrance and links the La(III) ions as three-connected nodes.
The La (III) complex with a new amide-type tripodal ligand, 2,2,2-nitrilotris {[(2-benzylaminoformyl) - phenoxy] ethyl} amine (L), was synthesized and characterized by X-ray crystallographic analysis. A = 1.0644 (3) nm, b = 2.3889 (5) nm, c = 2.1917 (5) nm, b = 90.65, V = 5.573 (2) nm3, Z = 1, Dc = 1.394 gcm-3, R1 = 0.0487, wR [I> 2s (I)] = 0.1266 The results reveal that each La (III) ion binds to 9 oxygen atoms , three of which belong to carbonyl groups from three tripodal ligands and six to three bidentate nitrate groups and a two-dimensional sheet of 4.82 networks is assembled by metal-ligand coordination interaction. L, a heptadentate compound, only acts as a tridentate bridging spacer due to its steric hindrance and links the La (III) ions as three-connected nodes.