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Ln[(CH_3COO)_3·H_2O](Ln=Pr,Nd),Mr=335.0[339.3],单斜晶系,P2_1/C空间群,a=8.406(3)[8.407(2)])方括中的数据是Nd[(CH_3COO)_3·H_2O]的相应数据),b=7.966(3)[7.931(1)],c=15.001(6)(?)[15.012(4)],β=93.89(3)~0[93.88(2)],V=1002.2(6)(?)~3[998.6(4)],Z=4,Dc=2.23g·cm~(-3)[2.46],λ(MoKa)=0.71069(?),μ=48.6cm~(-1)[52.6],F(000)=648[652],使用|F_0|>3σ(|F_0|)的2963[2693]个独立衍射,经最小二乘法修正到偏离因子R=0.045[0.038]。中心离子Pr[Nd]同其周围的6个羧基中的8个氧及1个水相键合,形成九配位的络合物。2个金属离子之间通过2个氧桥及1个羧基桥相连,形成1个沿b方向延伸的链状结构,各链之间由氢键和范德瓦尔力相联系。
Ln [(CH 3 COO) 3 · H 2 O] (Ln = Pr, Nd), Mr = 335.0 [339.3], monoclinic, P2_1 / C space group, a = 8.406 (3) [8.407 (2)]) Is the corresponding data for Nd [(CH 3 COO) 3 · H 2 O]), b = 7.966 (3) [7.931 (1)], c = 15.001 (6) V = 1002.2 (6) (?) - 3 [998.6 (4)], Z = 4 and Dc = 2.23 g · cm -3 [2.46], λ (2673), (MoKa) = 0.71069 (μ), μ = 48.6 cm -1 [52.6], F (000) = 648 [652] and 2963 [2693] with | F 0 |> 3σ Diffraction, corrected by the least square method to the deviation factor R = 0.045 [0.038]. The central ion Pr [Nd] is bonded to eight oxygen and one water of the six carboxyl groups around it to form a nine-coordinated complex. The two metal ions are connected by two oxygen bridges and one carboxyl bridge to form a chain structure extending in the b direction. Each chain is linked by hydrogen bonds and van der Waals forces.