neodymium(III) carbonate hydrate

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 有机碳酸及其衍生物
• 英文名称: neodymium(III) carbonate hydrate
• 英文别名: neodymium2(carbonate)3(hydrate)n；hydrated neodymium carbonate；Neodymium(3+);carbonate;hydrate
• 化学式: 3CO₃*(x)H₂O*2Nd
• 分子量: 222.27
• InChiKey: YQJSENALOOETOP-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  -3.27
• 重原子数：
  6
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  64.2
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  neodymium(III) carbonate hydrate 以 neat (no solvent, solid phase) 为溶剂， 生成 neodymium (III) dioxide carbonate
  参考文献：
  名称：

  Thermochemical studies on RE2O2CO3 (RE=Gd, Nd) decomposition

  摘要：

  Thermochemistry in the decomposition of gadolinium di-oxycarbonate, Gd2O2CO3(s) and neodymium di-oxycarbonate, Nd2O2CO3(s) was studied over the temperature region of 774-952 K and 775-1105 K, respectively. The equilibrium properties of the decomposition reactions were obtained by tensimetric measurement of the CO2(g) pressure over the biphasic mixture of RE2O2CO3(s) and RE2O3(s) at different temperatures (RE = Gd, Nd) and also by thermogravimetric analysis of the decomposition temperature at different CO2 pressures. The temperature dependence of the equilibrium pressure of CO2 thus measured could be given byIn p(CO2)/Pa (+/- 0.13) = -22599.1/T + 35.21 (774 <= T (K) <= 952) for Gd2O2CO3 decomposition and In p(CO2)/Pa (0.19) = -23824.7/T + 33.14 (775 <= T (K) <= 1105) for Nd2O2CO3 decomposition.From the above vapor pressure expressions, the median enthalpy and entropy of the decomposition of the oxycarbonates were calculated by the second law analysis and their thermodynamic stabilities were derived. The results are discussed in the light of available thermochemical data of the compounds. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.jpcs.2005.02.005
• 作为产物：
  描述：

  neodymium(trichloroacetate)3 在 二氧化碳 作用下， 以 水 为溶剂， 生成 neodymium(III) carbonate hydrate
  参考文献：
  名称：

  羟基碳酸钕和碳酸钕水合物的分解研究

  摘要：

  已经对（NdOH）CO 3和Nd 2（CO 3）3 ·8H 2 O的分解进行了综合研究。高分辨率电子显微镜显示的分解的原子级细节与热重分析和高温X射线衍射分析的结果相关。发现分解的两个序列是

  DOI：

  10.1016/0022-4596(90)90189-5

文献信息

• The mononuclear and dinuclear dimethoxyethane adducts of lanthanide trichlorides [LnCl3(DME)2]n, n=1 or 2, fundamental starting materials in lanthanide chemistry: preparation and structures
  作者：Ulrich Baisch、Daniela Belli Dell`Amico、Fausto Calderazzo、Roberto Conti、Luca Labella、Fabio Marchetti、Elsje Alessandra Quadrelli

  DOI：10.1016/j.ica.2003.11.011

  日期：2004.3

  Abstract Some new dimethoxyethane (DME) adducts of lanthanide trichlorides of formula [LnCl3(DME)2]n, n=1 or 2; (n=2, Ln=La, Ce, Pr, Nd; n=1, Ln=Eu, Tb, Ho, Tm, Lu) have been prepared by treating Ln2O3, or LnCl3 · nH2O, or Ln2(CO3)3, in DME as medium, with thionyl chloride at room temperature, eventually in the presence of water in the case of Ln2O3 and Ln2(CO3)3. The complexes from lanthanum to praseodymium

  摘要一些新型的[LnCl3（DME）2] n，n = 1或2的三氯化镧的二甲氧基乙烷（DME）加合物；（n = 2，Ln = La，Ce，Pr，Nd； n = 1，Ln = Eu，Tb，Ho，Tm，Lu）已通过处理Ln2O3或LnCl3·nH2O或Ln2（CO3）3制备，在DME中作为介质，在室温下与亚硫酰氯一起使用，对于Ln2O3和Ln2（ ）3，最终在水存在下使用。从镧到ase的复合物是氯桥联的二聚体。在钕的情况下，新的结果补充了文献数据，表明单核和双核物种都存在：因此钕可被视为该系列中从双核到单核结构的转向元素。在Eu-Lu序列中仅分离出单核复合物。
• Tuning Intrinsic and Extrinsic Proton Conduction in Metal–Organic Frameworks by the Lanthanide Contraction
  作者：Norman E. Wong、Padmini Ramaswamy、Andrew S. Lee、Benjamin S. Gelfand、Kamila J. Bladek、Jared M. Taylor、Denis M. Spasyuk、George K. H. Shimizu

  DOI：10.1021/jacs.7b07987

  日期：2017.10.18

  Seven isomorphous lanthanide metal-organic frameworks in the PCMOF-5 family, [Ln(H5L)(H2O)n](H2O) (L = 1,2,4,5-tetrakis(phosphonomethyl)benzene, Ln = La, Ce, Pr, Nd, Sm, Eu, Gd) have been synthesized and characterized. This family contains 1-D water-filled channels lined with free hydrogen phosphonate groups and gives a very low activation energy pathway for proton transfer. The lanthanide contraction

  PCMOF-5 家族中的七种同晶镧系金属有机骨架，[Ln(H5L)(H2O)n]( )（L = 1,2,4,5-四（膦酰基甲基）苯，Ln = La，Ce， Pr、Nd、Sm、Eu、Gd）已被合成和表征。该系列包含内衬游离膦酸氢基团的一维充水通道，并为质子转移提供非常低的活化能途径。镧系元素收缩用于系统地改变晶胞尺寸并调整质子传导途径。晶体系列的 LeBail 拟合表明，沿通道的晶体学 a 轴可以以小于 0.02 Å 的增量变化，从而相应地缩短质子转移途径。La 和 Pr 复合物的质子电导率大约比该系列的其他成员高一个数量级（10-3 S cm-1 对 10-4 S cm-1）。该系列的高导电和低导电成员的单晶结构（La、Pr 代表高，Ce 代表低）证实结构相似性超出了晶胞参数，扩展到游离酸基团和包括水分子的位置。扫描电子显微镜显示，由于镧系元素变化引起的晶格应变效应，Ln 系列不同成员
• Preparation of Some Lanthanoid Picrates and the Behavior of Their Water of Hydration
  作者：Kazuharu Nakagawa、Kayoko Amita、Hifumi Mizuno、Yoshihisa Inoue、Tadao Hakushi

  DOI：10.1246/bcsj.60.2037

  日期：1987.6

  Lanthanoid(III) picrates (Ln=La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, and Yb) were prepared from picric acid and the corresponding lanthanoid carbonates in good yields. Combustion analyses, ICP emission analyses, and UV spectrophotometry have shown that the light lanthanoid picrates, i.e. Ln=La–Gd, are all undecahydrates, while the heavy ones, Dy and Yb, are octahydrates. An examination by TG-DTA has revealed that these hydrates, being fairly stable in air at ambient temperature, are quite labile to give partially or completely dehydrated samples upon drying under vacuum, in a desiccator, and/or at elevated temperatures just above 30°C.

  镧系元素（III）苦味酸盐（Ln=La、Ce、Pr、Nd、Sm、Eu、Gd、Dy和Yb）由苦味酸和相应的镧系元素碳酸盐制备而成，收率较高。燃烧分析、ICP发射分析和紫外分光光度法表明，轻镧系元素苦味酸盐（即Ln=La-Gd）均为十水合物，而重镧系元素（Dy和Yb）为八水合物。TG-DTA检查表明，这些水合物在环境温度下在空气中相当稳定，但在真空干燥器中干燥和/或在30°C以上的高温下，它们会变得不稳定，部分或完全脱水。
• Carbonate extraction-based refining of uranium. Separation of U(VI), Ce(IV), and Ln(III) from aqueous carbonate solutions with methyltrioctylammonium carbonate
  作者：A. V. Boyarintsev、L. M. Abashev、S. I. Stepanov、V. I. Zhilov、A. M. Chekmarev、A. Yu. Tsivadze

  DOI：10.1134/s0012500817040024

  日期：2017.4

  The extraction of U(VI), Ce(IV), La(III), Nd(III), Sm(III), and Y(III) from an aqueous solution of Na2CO3 (0.25 mol/L) resulting from oxidative dissolution of U(IV) in the presence of H2O2 into a solution of methyltrioctylammonium carbonate (0.25 mol/L) in toluene. It was found that βU(VI)/Ln(III) values vary from ~8 to 3290 as the O : W ratio changes from 2 : 1 to 10 : 1, while βU(VI)/Ce(IV) varies

  从 Na2CO3 (0.25 mol/L) 的水溶液中萃取 U(VI)、Ce(IV)、La(III)、Nd(III)、Sm(III) 和 Y(III)在 H2O2 存在下将 U(IV) 加入甲基三辛基碳酸铵 (0.25 mol/L) 的甲苯溶液中。发现 βU(VI)/Ln(III) 值从 ~8 到 3290 不等，因为 O:W 比率从 2:1 变化到 10:1，而 βU(VI)/Ce(IV) 从 ~1.5 变化至 10，这允许在相同条件下在 8 至 10 级逆流萃取级联中从 Ce(IV) 中萃取分离 U(VI)，并在 2 至 3 级级联中从 Ln(III) 萃取分离.
• Diverse Coordination Chemistry of the Whole Series Rare-Earth L-Lactates: Synthetic Features, Crystal Structure, and Application in Chemical Solution Deposition of Ln2O3 Thin Films
  作者：Ruslan Gashigullin、Mikhail Kendin、Irina Martynova、Dmitry Tsymbarenko

  DOI：10.3390/molecules28155896

  日期：——

  existence of four novel structural types (1-Ln–4-Ln) is revealed. Compounds of the 1-Ln type (Ln = La, Ce, Pr) exhibit a chain polymeric structure, whereas 2-Ln–4-Ln compounds are molecular crystals consisting of dimeric (2-Ln; Ln = La, Ce–Nd) or monomeric (3-Ln–Ln = Sm–Lu, Y; 4-Ln–Ln = Sm–Gd, Y) species. The crystal structures of 1-Ln–4-Ln compounds are discussed in terms of their coordination geometry and

  稀土（RE、Ln）羧酸盐作为稀土氧化物纳米材料的前体被广泛研究；然而，迄今为止尚未报道 RE L-乳酸盐（HLact = 2-羟基丙酸）的系统研究。在目前的工作中，对 RE L-乳酸进行了深入的结构研究。合成了通式 LnLact3∙nH2O（Ln = La、Ce-Nd、Sm-Lu、Y；n = 2-3）的 RE 乳酸盐配合物家族，并通过 CHN、TGA、FTIR 以及粉末进行表征揭示了四种新型结构类型（1-Ln–4-Ln）的存在。1-Ln 型化合物（Ln = La、Ce、Pr）呈现链状聚合结构，而 2-Ln–4-Ln 化合物是由二聚体组成的分子晶体（2-Ln；Ln = La、Ce–Nd）或单体（3-Ln–Ln = Sm–Lu，Y；4-Ln–Ln = Sm–Gd，Y）物种。1-Ln–4-Ln 化合物的晶体结构从配位几何和超分子排列方面进行了讨论。钇和乳酸镧与二乙烯三胺的溶液用于化学沉积 Y2O3