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合成了三（３－苯基－４－苯甲酰基异唑酮－５）－乙醇－水合铕的配合物。有关鉴定和元素分析结果表明：该配合物的分子式为［Ｅｕ（ＰＢＩ）３（Ｃ２Ｈ５ＯＨ）（Ｈ２Ｏ）］·Ｈ２Ｏ，其中３－苯基－４－苯甲酰基异唑酮－５简记为ＨＰＢＩ，是一种新型高酸度的β－双酮。用Ｘ射线单晶衍射法测定了［Ｅｕ（ＰＢＩ）３（Ｃ２Ｈ５ＯＨ）（Ｈ２Ｏ）］·Ｈ２Ｏ的晶体结构，结果表明，该晶体属单斜晶系，Ｐ２１／ａ空间群，晶胞参数：ａ＝１．５５８６（９）ｎｍ，ｂ＝２．１２９７（７）ｎｍ，ｃ＝１．６０４（１）ｎｍ，β＝１１７．９７（５）°，Ｖ＝４．７０３（９）ｎｍ３，Ｚ＝４．中心离子铕为八配位，其配位多面体为畸变的双帽三棱柱。配位的８个氧原子分别来自３个ＰＢＩ配体中的６个氧、１个溶剂化乙醇分子中的氧和１个水分子中的氧，Ｅｕ—Ｏ配位键平均键长０．２３９１（４）ｎｍ。晶体结构中还存在１个未配位的水分子。该水分子、配位水分子、乙醇分子与配体ＰＢＩ中的Ｎ原子之间均存在强的氢键作用。同一ＰＢＩ基团内配位氧之间的平均距离为０．２８０８ｎｍ。
A complex of tris (3-phenyl-4-benzoylisoxazolone-5) -ethanol-hydrated europium was synthesized. The results of identification and elemental analysis show that the complex has the formula of [Eu (PBI) 3 (C2H5OH) (H2O)] · H2O, in which 3-phenyl-4-benzoylisoxazolone-5 is abbreviated as HPBI , Is a new type of highly acid β-diketone. The crystal structure of [Eu (PBI) 3 (C2H5OH) (H2O)] · H2O was determined by X-ray single crystal diffraction. The results show that the crystal is monoclinic, P21 / a space group, = 1.5586 (9) nm, b = 2.1297 (7) nm, c = 1.604 (1) nm, β = 117.97 = 4. The central ionic europium is eight-coordinated, its coordination polyhedron is distorted double cap triangular prism. Eight oxygen atoms are coordinated respectively from 6 oxygen atoms of 3 PBI ligands, 1 oxygen atom in ethanol molecule and 1 oxygen in water molecule. The average bond length of Eu-O coordination bond is 0.2391 (4) nm. There is also an uncoordinated water molecule in the crystal structure. The water molecules, coordination water molecules, ethanol molecules and ligand PBI in the N atom between the strong hydrogen bonding. The average distance between the coordination oxygen in the same PBI group was 0.2808 nm.