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标题化合物由La(NO3)3·nH2O,1,10-邻菲罗啉(phen)和乙酰丙酮等在无水乙醇和水的混合溶剂中合成并用IR谱和X射线结构分析进行表征。晶体学数据如下:C24 H21LaN8O14,Mr= 784.40, 三斜, P1, a= 7.124(1), b= 11.047(2), c= 19.393(4), α= 81.10(3), β= 87.79(3), γ= 74.36(3)°, V= 1452.0(5)3, Z= 2, Dc=1.794g/cm 3, F(000)= 780, μ(MoKα)= 1.557m m - 1。化合物由阳离子〔phenH〕+ 和配合阴离子〔La(NO3)4(H2O)(phen)〕- 及一个结晶水分子组成。配合阴离子中以La原子为中心,周围被2 个N原子(来自phen)和9 个O原子(来自NO3- 和H2O)所占据,构成较为罕见的11 配位。晶胞中两两阳离子〔phenH〕+ 及两两配体phen 平面之间均相互平行堆积,并有多种类型的氢键存在,这些都可以降低能量,有利于化合物在晶体中的堆积。
The title compound was synthesized from La (NO3) 3nH2O, 1,10-phenanthroline and acetylacetone in a mixed solvent of anhydrous ethanol and water and characterized by IR spectrum and X-ray structural analysis. The crystallographic data are as follows: C24H21LaN8O14, Mr = 784.40, triclinic, P1, a = 7.124 (1), b = 11.047 (2), c = 19.393 (3), β = 87.79 (3), γ = 74.36 (3) °, V = 1452.0 (5) 3, Z = 2, Dc = 1.794 g / cm 3, F (000) = 780, μ (MoKα) = 1.557 m m -1. The compound consists of a cation [phenH] + and a complexing anion [La (NO3) 4 (H2O) (phen)] - and a crystal water molecule. The anions in the anions are centered around the La atom and are surrounded by two N atoms (from phen) and nine O atoms (from NO3- and H2O), forming a relatively uncommon 11 coordination. In the unit cell, two or more cation [phenH] + and the two phenanthrene planes are parallel to each other and have many types of hydrogen bonds, which can reduce the energy and facilitate the accumulation of the compound in the crystal.