cerium carbonate

• 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: cerium carbonate
• 英文别名: ceric carbonate
• 化学式: 2CO₃*Ce
• 分子量: 260.138
• InChiKey: AJTIGCBEBURXEC-UHFFFAOYSA-L

计算性质

• 辛醇/水分配系数(LogP)：
  -2.45
• 重原子数：
  5.0
• 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：
  63.19
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  cerium carbonate 、 氯 在 甲烷 作用下， 以 solid 为溶剂， 生成 三氯化铈
  参考文献：
  名称：

  A systemic study of stepwise chlorination-chemical vapor transport characteristics of pure rare earth oxides from Sc2O3 to Lu2O3 mediated by alkaline chlorides as complex former

  摘要：

  A systematic study has been carried out for the. stepwise chlorination-chemical vapor transport (SC-CVT) characteristics of pure rare earth oxides from Sc2O3 to Lu2O3 mediated by the vapor complexes KLnCl(4) and NaLnCl(4) (Ln=Sc, Y and La-Lu) used NaCl and KCl as complex former, respectively. The results showed that the SC-CVT characteristics are similarly for NaCl and KCl as complex former, the main deposition temperature of the rare earth chlorides LnCl(3) is in the increasing order SCCl3 < YCl3 < LaCl3, and then with a systematically decreasing trend from the early lanthanide chlorides to the end one. The results also showed that the total transported amount of the produced chlorides is YCl3 > SCCl3, and they are much higher than that of most lanthanoid chlorides. For lanthanoids, the total transported amount of chloride increases systematically from the early lanthanoid chlorides to the end one except for EuCl3 and GdCl3 mediated by KCl and NaCl as complex former, respectively, which showed the divergence effect of Gd in the total transport efficiency. But there are some differences in SC-CVT characteristics of pure rare earth oxide mediated by KCl and NaCl as complex former, that is the main deposition temperature region for the same rare earth element was lower for KCl than that for NaCl as complex former except for LaCl3, CeCl3, YbCl3 and LuCl3, while the total transport amount of rare earth chloride for KCl as complex former is higher than that for NaCl except for LaCl3 and EuCl3. More over, the discussion was carried out for Sc and Y on the one hand and the lanthanides contain 4f electron as another hand based on the 4f electron hybridization assumption. Further more, the transport characteristics of rare earth oxides with alkaline chlorides as complex former in this study were compared to that with AlCl3 as complex former. (C) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jallcom.2006.09.121
• 作为产物：
  描述：

  以 neat (no solvent) 为溶剂， 生成 cerium carbonate
  参考文献：
  名称：

  Synthesis, Characterization, and Electrochemical Studies of Ternary Complexes of Lanthanum(III) and Cerium(III) with Some Naphthylideneamino Acids and Imidazoles

  摘要：

  A new series of ternary lanthanium(III) and cerium(III) complexes containing Schiff bases derived from some amino acids, viz: glycine; alanine; phenylalanine; valine and leucine with 2-hydroxy-1-naphthaldehyde as primary ligands, and 1-methylimidazole & 1,2-dimethylimidazole as secondary ligands were synthesized. The complexes were characterized on the bases of microanalyses, electrical conductance, IR & H-1 NMR spectra, thermal analysis and cyclic voltammetric data. All complexes were found to be non-electrolytes with the general formula of [ML(NO3 )Im center dot nH(2)O] (where M = La(III) or Ce(III), L = naphthylideneamino acids, Im = 1-methylimidazole or 1,2-dimethylimidazole and n = 1 or 2). The redox properties of some of the ternary complexes of La(III) and Ce(III) were examined using cyclic voltammetry in 0.1 mol dm(-3) TBAP/DMSO solutions. The reduction potentials of the investigated complexes showed a dependence upon the nature of the amino acid of the ligand. The stability of the complexes is discussed on the basis of the thermal and electrochemical data.

  DOI：

  10.1080/15533170500359711

文献信息

• Benzylic oxidation of aromatics with cerium(IV) triflate; synthetic scope and mechanistic insight
  作者：Kenneth K. Laali、Mark Herbert、Brad Cushnyr、Anand Bhatt、David Terrano

  DOI：10.1039/b008843i

  日期：——

  The synthetic utility of cerium(IV) triflate Ce(OTf)4 as a reagent for benzylic oxidation has been tested for a variety of aromatic compounds. Insight is provided into various factors that govern these oxidations and their progress. It has been shown that the mode of preparation of Ce(OTf)4 and the % H2O present in the sample have a marked influence on oxidation ability. A variety of mono- and dialkylbenzenes

  三氟铈 酸铈（IV）Ce（OTf ）4用作苄基氧化试剂的合成实用程序已针对多种芳族化合物进行了测试。提供了对控制这些氧化及其进展的各种因素的见解。已经表明，样品中存在的Ce（OTf ）4的制备方式 和％H 2 O对氧化能力有显着影响。已经研究了各种单和二烷基苯，卤代烷基苯，双环和三环系统以及烷氧基苯。该方法为室温下由芳族化合物合成芳族酮和醛提供了一种易于执行的一锅法反应，并有可能被更广泛地应用。
• Ali, Gamila Y.; Rabia, Mostafa K. M.; Al-Mohanna, Maha, A. F., Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry, 2004, vol. 34, p. 45 - 66
  作者：Ali, Gamila Y.、Rabia, Mostafa K. M.、Al-Mohanna, Maha, A. F.

  DOI：——

  日期：——
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Sc: MVol.D5, 1.1.10, page 80 - 82
  作者：

  DOI：——

  日期：——
• Role of oxygen in Ln2−xCexCuO4 superconductors
  作者：Y.T. Zhu、A. Manthiram

  DOI：10.1016/0921-4534(94)90262-3

  日期：1994.5

  The presence of more basic La3+ in the electron-doped LaNd1-xCexCuO4 Superconductors enhances the dissolution of the samples during iodometric analysis, which allows a precise determination to be made of the oxygen contents and their correlation to observed properties. The as-prepared LaNd1-xCexCuO4+delta samples all have 0 < delta less-than-or-equal-to 0.02 excess oxygen in the octahedral interstitial sites, which needs to be removed to achieve superconductivity. It becomes increasingly difficult to create oxygen vacancies as the Ce content in LaNd1-xCexCuO4 increases due to a decreasing internal stress resulting from an improved bond-length matching. An equilibrium in the oxygen occupancy between the octahedral interstitial and the tetrahedral sites necessitates the creation of 0 < delta < 0.03 oxygen vacancies in the tetrahedral sites of LaNd1-xCexCuO4-delta before all the interstitial oxygen atoms could be removed. This results in the absence of superconductivity at or above the nominal oxygen content 4.00.
• Troyannchuk, I.O.; Ges', A. P.; Bogush, A. K., Inorganic Materials, <hi>1990</hi>, vol. 26, p. 1534 - 1536
  作者：Troyannchuk, I.O.、Ges', A. P.、Bogush, A. K.、Balyko, L. V.、Vishnevkii, A. L.、Stribuk, E. K.

  DOI：——

  日期：——