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在EtOH：H2O=2:1的溶剂中，以Eu（NO3）3·6H2O、C6H5COONa和Phen（邻菲哈啉）为原料，合成了四桥双核配合物［Eu2（Phen）2（C6H5COO）6］．晶体属三斜晶系，空间群P1，a=1．08156（7）nm，b=1．19331（7）nm，c=1.24401（8）nm，a=104.972（5）°，β=93．661（5）°γ=113.297（5）°，Z=1．R=0.0437．晶体中2个Eu原子处于晶体学等效位置，配位数为9，Eu-Eu间距离为0．4052nm．讨论了标题化合物的UV－Vis谱与其它Eu3+离子谱的异同．
(Eu2 (Phen) 2 (C6H5COO) 6 was synthesized from Eu (NO3) 3.6H2O, C6H5COONa and Phen (phenanthroline) in EtOH: H2O = 2: 1 ]. The crystal belongs to the triclinic system with space group P1, a = 1.08156 (7) nm, b = 1.19331 (7) nm, c = 1.24401 (8) nm, a = 104.972 .661 (5) ° γ = 113.297 (5) °, Z = 1. R = 0.0437. The two Eu atoms in the crystal are in the crystallographic equivalent position, the coordination number is 9 and the Eu-Eu distance is 0.4052 nm. The similarities and differences between the UV-Vis spectrum of the title compound and other Eu3 + ion spectra are discussed.