barium diethanolate | 2914-19-4

• 物质功能分类: 有机原料 - 有机金属类化合物 - 有机铋、钴、镨、钆、镓、铱、铼、钇、铽等
• 分子结构分类: 有机化合物 - 有机氧化合物 - 有机氧化物
• 英文名称: barium diethanolate
• 英文别名: barium diethoxide；barium ethoxide；barium ethylate；Bariumethylat
• CAS: 2914-19-4
• 化学式: C₄H₁₀BaO₂
• 分子量: 227.452
• InChiKey: QTWBCLXKHIUYLD-UHFFFAOYSA-N

物化性质

• 暴露限值：
  ACGIH: STEL 1000 ppmOSHA: TWA 1000 ppm(1900 mg/m3)NIOSH: IDLH 3300 ppm; TWA 1000 ppm(1900 mg/m3)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.01
• 重原子数：
  4.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  23.06
• 氢给体数：
  0.0
• 氢受体数：
  1.0

安全信息

• 危险等级：
  3

反应信息

• 作为反应物：
  描述：

  双氧水 、 barium diethanolate 生成 barium peroxide * hydrogen peroxide
  参考文献：
  名称：

  Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Ba: MVol., 4.3.2, page 98 - 106

  摘要：

  DOI：
• 作为产物：
  描述：

  barium 在 C₂H₅OH 作用下， 生成 barium diethanolate
  参考文献：
  名称：

  Turevskaya, E. P.; Turova, N. Ya.; Yanovskaya, M. I., Russian Journal of Inorganic Chemistry, 1979, vol. 24, p. 1005 - 1008

  摘要：

  DOI：
• 作为试剂：
  描述：

  sulfobutanedioic acid bis(tridecanyl) ester 在 磷酸 、 barium diethanolate 作用下， 以 乙醇 为溶剂， 生成 barium salt of HTR
  参考文献：
  名称：

  MANUFACTURE OF A CHARGE DIRECTOR

  摘要：

  Herein is described a method for the manufacture of a charge director comprising a barium salt. The method comprises reacting barium alkoxide with an acid in a reaction medium comprising ethanol, and separating ethanol from the reaction mixture to recover the barium salt produced.

  公开号：

  US20180024456A1

文献信息

• Precursor and Solvent Effects in the Nonhydrolytic Synthesis of Complex Oxide Nanoparticles for Bioimaging Applications by the Ether Elimination (Bradley) Reaction
  作者：Robert Pazik、Renata Tekoriute、Sebastian Håkansson、Rafal Wiglusz、Wieslaw Strek、Gulaim A. Seisenbaeva、Yurii K. Gun'ko、Vadim G. Kessler

  DOI：10.1002/chem.200900836

  日期：2009.7.13

  Investigation of the solvent and alkoxide precursor effect on the nonhydrolytic sol–gel synthesis of oxide nanoparticles by means of an ether elimination (Bradley) reaction indicates that the best crystallinity of the resulting oxide particles is achieved on application of aprotic ketone solvents, such as acetophenone, and of smallest possible alkoxide groups. The size of the produced primary particles

  通过醚消除（Bradley）反应对溶​​剂和醇盐前体对氧化物纳米粒子的非水解溶胶-凝胶合成的影响的研究表明，通过使用非质子酮溶剂（如苯乙酮），可以使所得氧化物粒子达到最佳结晶度和最小的醇盐基团。由于其形成的内在机理，所产生的初级粒子的尺寸始终约为5 nm。所产生的具有天然高度不溶性矿物成分的颗粒具有生物相容性。钙钛矿型复合氧化物纳米粒子的光学特性可通过掺杂稀土阳离子轻松控制。例如Eu 3+。通过将引导生物分子锚定在磷酸或膦酸酯部分上，可以通过表面修饰将它们作为目标。对用乙基膦酸改性的Eu掺杂的BaTiO 3颗粒的分布进行测试，证明了它们通过主动的流体传输被植物吸收，最终导致它们在细胞膜中的浓度增加。
• Defect intergrowths in barium polytitanates
  作者：Peter K. Davies、Robert S. Roth

  DOI：10.1016/0022-4596(87)90258-1

  日期：1987.12

  investigated the mechanisms of defect formation in samples of the microwave dielectric material, Ba2Ti9O20. We found that materials prepared by a variety of different techniques all show considerable structural disorder. The most prevalent intergrowth involved formation of a new triclinic polytype with an ionic arrangement closely related to that in the accepted structure. Defects also resulted from considerable

  使用高分辨率透射电子显微镜，我们研究了微波介电材料Ba 2 Ti 9 O 20样品中缺陷形成的机理。。我们发现通过各种不同技术制备的材料均显示出相当大的结构紊乱。最普遍的共生涉及形成新的三斜晶型，其离子排列与公认结构中的离子排列紧密相关。缺陷也由相当多的微孪晶引起，并且主要在由钒酸盐助熔剂制备的样品中观察到。与化学计量共生相比，非化学计量缺陷的形成程度较小。在这种情况下，缺陷似乎是由于多余的空位结合到结构的密排层中而引起的。钡缺乏的表面相也通过类似的机理形成。
• DE196369
  申请人：——

  公开号：——

  公开（公告）日：——
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: B: B-Verb.8, 3.2.1, page 53 - 65
  作者：

  DOI：——

  日期：——
• Preparation of YBa2Cu3O7–x superconducting solutions and films from alkoxide-based precursors using sol–gel method and investigation of their chemical reaction mechanisms
  作者：Ibrahim Halil Mutlu、Hediye Acun、Erdal Celik、Hasan Turkmen

  DOI：10.1016/j.physc.2006.10.010

  日期：2007.1

  In the development of coated superconductors sol-gel technique has been widely used as an effective processing method, especially in making long-length wires and tapes. However, one drawback associated with the deposition of YBa2Cu3O7-x and Gd2O3 buffer layer on Ni tape is the adhesion characteristic at interfaces YBCO-Gd2O3 and Gd2O3-NiO and NiO-Ni substrate. In this paper, two strategies for adhesion enhancement of multilayered ceramic oxide coatings on Ni substrate were proposed: (1) formation of chemical bonds through surface condensation reactions, and development of ceramic networks through diffusion of alkoxide precursors. The current research has focused on the fabrication and adhesion of YBCO coatings on buffered Ni substrate using nine solutions prepared from Y, Ba and Cu alkoxides, solvent and chelating agent. Only two of YBCO solutions were successfully obtained while the rest of them were unsuccessful. Among these solutions we scrutinized chemical reaction mechanisms of a successful and an unsuccessful solution for comparison. How the. chemical bonds and solubility were affected by the acids, base and solvents used in the solutions was demonstrated. It was shown that pH of the solution, homogeneity of the solution and gelation, steric affect of the chemicals in sol-gel solutions are significant issues to obtain high quality superconducting YBCO thin films. In addition, X-ray diffraction (XRD) was used to analyze phase structure of YBCO and compare results of chemical reactions obtained by a chemdraw programme. Scanning electron microscope (SEM) studies was carried out to examine microstructures of YBCO films produced from alkoxide precursors, solvent, chelating agent and modifying liquid chemical materials such as triethanolamine or ammonium hydroxide. It was found to be YBCO, Gd2O3, NiO and Ni phases in YBCO/Gd2O3/Ni sample from XRD analysis. That the solution prepared by using triethanolamine provided the best film quality and adhesion was determined by chemical reactions and gelation behaviour in the solutions and SEM observations. (c) 2006 Elsevier B.V. All rights reserved.