1D配合物［Tb(3,5-pdc)(3,5-Hpdc)(H 2 O)(phen)］ n 的合成、晶体结构及发光性质

A terbium complex [Tb(3,5-pdc)(3,5-Hpdc)(H2O)(phen) ]n(3,5-H2 pdc = 3,5-pyridinedicarboxylic acid,phen = 1,10-phenanthroline) was synthesized by reacting terbium nitrate with 3,5-H2 pdc and phen at hydrothermal condition. X-ray diffraction analysis of single crystal shows that the complex is crystallized in monoclinic system,C2/c space group. The cell parameters are as follows: a = 2. 734 9(3) nm,b = 1. 099 48(12) nm,c = 2. 200 0(3) nm,β = 132. 147 3(12) °,α = γ = 90°,Z = 8,V = 4. 904 8(10) nm3. One-dimensional chain structure is constructed by alternated connection between Tb3+ ions and 3,5-pyridinedicarboxylates for the complex. A threedimensional coordination polymer is formed by the π … π stacking interaction between the phen ligands. The complex exhibits intense characteristic luminescence of Tb3+ ion under 352 nm excitation.