Synthesis, structure and luminescence properties of lanthanide complex with a new tetrapodal ligand featuring salicylamide arms

A new tetrapodal ligand 1,1,1-tetrakis{[(2'-(2-furfurylaminoformyl))phenoxyl]methyl}methane (L) has been prepared and their coordination chemistry with Ln(III) ions has been investigated. The structure of ([Ln(4)L(3)(NO3)(12)] center dot H2O}(infinity) (Ln = Nd, Eu)] shows the binodal 4,3-connected three-dimensional interpenetration coordination polymers with topology of a (86)3(83)4 notation. [DyL(NO3)(3)(H2O)(2)] center dot 0.5CH(3)OH and [ErL(NO3)(3)(H2O) (CH3OH)] center dot CH3COCH3 is a 1:1 mononuclear complex with interesting supramolecular features. The structure of [NdL(H2O)(6)] center dot 3ClO(4) center dot 3H(2)O is a 2:1 mononuclear complex which further self-assembled through hydrogen bond to form a three-dimensional supramolecular structures. The result presented here indicates that both subtle variation of the terminal group and Counter anions can be applied in the modulation of the overall Molecular structures of lanthanide complex of salicylamide derivatives due to the Structure specialties of this type of ligand. The luminescence properties of the Eu-III complex are also studied in detail. (C) 2009 Elsevier Inc. All rights reserved.