dysprosium (III) oxide nitrate | 15013-18-0

• 英文名称: dysprosium (III) oxide nitrate
• 英文别名: dysprosium(III) oxonitrate；dysprosium oxide nitrate
• CAS: 15013-18-0
• 化学式: DyO*NO₃
• 分子量: 240.504
• InChiKey: ZEUUUZBEWWLKAX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.36
• 重原子数：
  6.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  83.27
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  Dy(NO3)3*2hexamethylenetetramine*7H2O 以 neat (no solvent) 为溶剂， 生成 dysprosium (III) oxide nitrate
  参考文献：
  名称：

  The coupled TG-MS investigations of lanthanide(III) nitrate complexes with hexamethylenetetramine

  摘要：

  New transition metal compounds of the general formula Ln(NO3)(3).2[N-4(CH2)(6)].nH(2)O, where Ln = La, Nd, Sm, Gd, Tb, Dy, Er, Lu, and n = 7-12, were obtained. The compounds and the gases evolved in the course of their thermal decomposition were characterised by thermogravimetric analysis. The measurements were carried out in air and argon environment in order to compare the intermediate products, final products and the mechanism of the thermal decomposition. The combined TG-MS system was used to identify the main volatile products of thermal decomposition and fragmentation processes of the obtained compounds.

  DOI：

  10.1023/b:jtan.0000046116.43443.36

文献信息

• Synthese und Untersuchung der Lanthanoidoxidnitrate LnONO₃ (Ln = Pr, Nd und Sm-Yb) / Synthesis and Studies of Lanthanide Oxide Nitrates LnONO₃ (Ln = Pr, Nd, and Sm-Yb)
  作者：Simone Dill、Hans-Jürgen Meyer

  DOI：10.1515/znb-2006-0103

  日期：2006.1.1

  The lanthanide oxide nitrates LnONO₃ with Ln = Pr, Nd, and Sm-Yb were synthesised by thermal decomposition of hydrated lanthanide nitrates. The compounds were refined isotypically to YONO₃ in the tetragonal space group P4/nmm and the structure is closely related to the PbFCl-type. Because of the orientational disorder of NO₃ − in this structure refinement a possible superstructure is discussed.

  Together with the oxide ions, the metal ions form [Ln₂O₂]²⁺ layers, alternating with double (NO₃)− layers. Lattice parameters were determined by powder X-ray diffraction, and the structure of HoONO₃ was refined by Rietveld analysis. Some thermoanalytical data are given and magnetic properties were measured for LnONO₃ with Ln = Nd, Sm, Eu, and Gd.

  采用水合稀土硝酸盐的热分解法合成了LnONO₃，其中Ln = Pr，Nd和Sm-Yb。这些化合物在四方晶系空间群P4/nmm中与YONO₃同构，并且其结构与PbFCl型密切相关。由于该结构中NO₃−的方向无序，因此还讨论了可能的超结构。与氧离子一起，金属离子形成[Ln₂O₂]²⁺层，与双(NO₃)−层交替。通过粉末X射线衍射确定了晶格参数，并通过Rietveld分析对HoONO₃的结构进行了优化。给出了一些热分析数据，并测量了LnONO₃（其中Ln = Nd，Sm，Eu和Gd）的磁性。
• Static and dynamic magnetic properties and effect of surface chemistry on the morphology and crystallinity of DyCrO3 nanoplatelets
  作者：Preeti Gupta、Richa Bhargava、Raja Das、Pankaj Poddar

  DOI：10.1039/c3ra43088j

  日期：——

  In this contribution, the structural and magnetic properties of DyCrO3 nanoplatelets, synthesized by a hydrolytic sol–gel method, have been investigated. The crystalline phase of DyCrO3 was attained at the decomposition temperature of 800 °C for citric acid and oxalic acid, respectively and their structural analysis indicates a distorted orthorhombic perovskite structure of the DyCrO3 nanoplatelets. The dc-magnetization curve shows the Néel temperature of ∼144 and ∼146 K for DyCrO3 nanoplatelets synthesized using citric acid (DCO (C)) and oxalic acid (DCO (O)), respectively. In addition, DCO (O) shows weak anomalies at ∼22 and ∼6 K in the zero-field-cooled and field-cooled magnetization curves. Below the Néel temperature, DCO (C) and DCO (O) exhibit cross-over from positive to negative magnetization at ∼143 and ∼145 K, respectively. This was attributed to a Dy3+–Cr3+ interaction, which resulted in a weak ferromagnetic coupling (seen as a small opening in the M–H curves). The low temperature transition observed at ∼6 K can be assigned to the onset of Dy3+–Dy3+ antiferromagnetic interaction.

  本文研究了通过水解溶胶-凝胶法合成的 DyCrO3 纳米片的结构和磁性能。柠檬酸和草酸的分解温度分别为 800 ℃，DyCrO3 在此温度下达到结晶相，其结构分析表明 DyCrO3 纳米微粒具有畸变正交包晶结构。直流磁化曲线显示，使用柠檬酸（DCO (C)）和草酸（DCO (O)）合成的 DyCrO3 纳米微晶的奈尔温度分别为 ∼144 K 和 ∼146 K。此外，在零场冷却和场冷却磁化曲线中，DCO (O) 在 ∼22 K 和 ∼6 K 处显示出微弱的异常。在奈尔温度以下，DCO (C) 和 DCO (O) 分别在 ∼143 和 ∼145 K 时出现从正磁化到负磁化的交叉。这归因于 Dy3+-Cr3+ 的相互作用，导致了微弱的铁磁耦合（表现为 M-H 曲线上的一个小开口）。在 ∼6 K 时观察到的低温转变可归因于 Dy3+-Dy3+ 反铁磁相互作用的开始。
• Shchelokov, R. N.; Bolotova, G. T.; Perov, V. N., Russian Journal of Inorganic Chemistry, 1988, vol. 33, p. 486 - 491
  作者：Shchelokov, R. N.、Bolotova, G. T.、Perov, V. N.、Evstaf'eva, O. N.

  DOI：——

  日期：——