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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Hydrothermal synthesis of rare earth iodates from the corresponding periodates: II. Synthesis and structures of Ln(IO3)(3) (Ln = Pr, Nd, Sm, Eu, Gd, Tb, Ho, Er) and Ln(IO3)(3)center dot 2H(2)O (Ln = Eu, Gd, Dy, Er, Tm, Yb)
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Hydrothermal synthesis of rare earth iodates from the corresponding periodates: II. Synthesis and structures of Ln(IO3)(3) (Ln = Pr, Nd, Sm, Eu, Gd, Tb, Ho, Er) and Ln(IO3)(3)center dot 2H(2)O (Ln = Eu, Gd, Dy, Er, Tm, Yb)

机译:由相应的高碘酸盐水热合成稀土碘酸盐:II。 Ln(IO3)(3)(Ln = Pr,Nd,Sm,Eu,Gd,Tb,Ho,Er)和Ln(IO3)(3)中心点2H(2)O(Ln = Eu, Gd,Dy,Er,Tm,Yb)

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摘要

Single crystals of lanthanide iodates have been quickly grown by decomposition of the corresponding periodates under hydrothermal conditions. Single crystal X-ray diffraction showed that two structure types form with the elements from Pr-Yb, an anhydrous form for Pr, Nd, Sm, Eu, Gd, Tb, Ho, Er and a dihydrate for Eu, Gd, Dy, Er, Tm, Yb. A detailed structure study is presented for one representative of each of these types, along with structure type and lattice parameters for the other materials.Tb(IO3)(3): Space group P2(1)/c, Z = 4, lattice dimensions at 120 K: a = 7.102(1), b = 8.468(1), c = 13.355(2) Angstrom, beta = 99.67(1)degrees; R1 = 0.034.Yb(IO3)(3) . 2H(2)O: Space group P (1) over bar, Z = 2, lattice dimensions at 120 K: a = 7.013(1), b = 7.370(1), c = 10.458(2) Angstrom, alpha = 95.250(5), beta = 105.096(5), gamma = 109.910(10)degrees; R1 = 0.024.
机译:通过在水热条件下分解相应的高碘酸盐,碘化镧系元素单晶已迅速生长。 X射线单晶衍射表明,Pr-Yb元素具有两种结构类型,Pr,Nd,Sm,Eu,Gd,Tb,Ho,Er为无水形式,Eu,Gd,Dy,Er为二水合物。 ,Tm,Yb。针对每种类型的代表进行了详细的结构研究,以及其他材料的结构类型和晶格参数.Tb(IO3)(3):空间群P2(1)/ c,Z = 4,晶格尺寸在120 K时:a = 7.102(1),b = 8.468(1),c = 13.355(2)埃,β= 99.67(1)度; R1 = 0.034.Yb(IO3)(3)。 2H(2)O:条形上的空间组P(1),Z = 2,120 K时的晶格尺寸:a = 7.013(1),b = 7.370(1),c = 10.458(2)埃,alpha = 95.250 (5),β= 105.096(5),伽马= 109.910(10)度; R1 = 0.024。

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