| The crystal structures of rare earth complexes with phen/bipy ligand were reviewed. The syntheses, crystal structures of nine new coordination complexes and one organic compound were reported. At the same time, they were characterized by IR spectroscopically, thermogravimetric analysis, X-ray powder diffraction and the luminescent properties. Finally, the anion recognition properties of two lanthanide complexes were investigated.Hydrothermal reactions of Ln(NO)3, 2,2':6',2''-Terpyridine(tpy) and 2,2`-dpdc afforded [Er (dpdc)2(tpy)]n(1),[Ln2(dpdc)4(tpy)2]n·H2O (Ln= Nd(2),Yb(3)]. In the centrasymmetric binuclear complex [Er(dpdc)2(tpy)2]n, each asymmetric unit contains two Er3+, four 2,2`-dpdc ,one chelate tpy molecule. The complexes 2-3 crystallize isostructurally in a monoclinic system and they consist of one Ln3+ ions, one chelate L and two 2,2`-dpdc. The Ln3+ are bridged by 2,2`-dpdc ligand to generate 1D chain.The five rare earth complexes [Ln2(dpdc)2(tpy)(M)2(H2O)]n. H2O [ Ln=La(4),Yb(5),Pr(6),Gd(7) and Sm(8); M=Acetic acid] were obtained by the solution reaction of lanthanide ion, tpy, 2,2`-dpdc and acetic acid. In these complexes, each Ln3+ is coordinated by seven oxygen atoms and three nitrogen atoms from tpy to form a distorted square antiprism geometry.The complex was synthesized by reaction of Tb3+, 2,2',-Bipyridine(bpy), L(L=3-Methyl-2-nitrobenzoic acid) in ethanol solution. In each centrasymmetric binuclear complex [Tb(bpy)3L]·2H2O(9), Tb atom is coordinated by seven oxygen atoms, from five M and two nitrogen atom from one bpy. The 9-coordinated Tb atoms exhibiting tri-copped trigonal prismatic geometry formed Tb2N4N12 dimer by edge shared. The fluorescence emission spectra show that the two aromatic ring ligands can increase the luminescence. In the complex, 2,2`-bpy has two different coordination modes. One mode is 2,2`-bpy chelate one Ln3+ with tow carboxyl oxygen atoms and the other mode is one carboxyl oxygen atoms connected the other Ln3+ with mono coordination.Two complexes Tb(phen)2(NO3)3 and Eu(phen)2(NO3)3 were synthesized. The recognition behavior of the complexes toward various anions was investigated. When fluoride anions were added into the solution of Tb(phen)2(NO3)3, the fluorescence was quenched. When HSO42- anions were added , fluorescence of complex were decreased gradually in fibrosis reversal. However, when the NO3-,Ac-,Cl-,Br- and I- anions were added , the fluorescence has no change.
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