strontium 2-methoxyethoxide

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: strontium 2-methoxyethoxide
• 英文别名: strontium methoxyethoxide；di(2-methoxyethoxy)-strontium
• 化学式: 2C₃H₇O₂*Sr
• 分子量: 237.795
• InChiKey: RMGJKXOQKVOJMI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.39
• 重原子数：
  6.0
• 可旋转键数：
  2.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  32.29
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  strontium 2-methoxyethoxide 、 titanium methoxyethoxide 在 水 作用下， 以 乙二醇甲醚 为溶剂， 生成 strontium titanate
  参考文献：
  名称：

  Conversion Process of Strontium?Titanium Bimetallic Methoxyethoxide Precursor into SrTiO₃via Hydrolysis/Calcination

  摘要：

  The conversion of a Sr–Ti bimetallic methoxyethoxide precursor into SrTiO3 via hydrolysis and/or calcination was investigated. Hydrolysis with various water/metal molar ratios (rH; rH= 0.5, 2, 4, 6, 8, 10) in tetrahydrofuran at reflux resulted in a decrease in the amount of the methoxyethoxyl groups, and the hydrolyzed products were soluble with rH≤ 2. At rH≥ 8, SrTiO3 was crystallized without calcination. Both the hydrolyzed and unhydrolyzed precursors (rH= 0, 0.5, 2) were calcined in dry air at 550°–800°C. SrTiO3 was crystallized on calcination at ≥550°C from amorphous materials with a considerable loss of carbon, which was present as both chars and carbonate ions.

  DOI：

  10.1111/j.1151-2916.2002.tb00434.x

文献信息

• Cyclopentadienyl/Alkoxo Ligand Exchange in Group 4 Metallocenes: A Convenient Route to Heterometallic Species
  作者：Piotr Sobota、Anna Dra̧g-Jarza̧bek、Łukasz John、Józef Utko、Lucjan B. Jerzykiewicz、Marek Duczmal

  DOI：10.1021/ic900498x

  日期：2009.7.20

  η2-L)8(η-L)2Cl4] (1), [Sr4Hf2(μ6-O)(μ3,η2-L)8(η-L)2(η-LH)4Cl4] (2), [Ca4Zr2(μ6-O)(μ-Cl)4(μ,η2-L)8Cl2] (3), [Sr4Ti2(μ6-O)(μ3,η2-L)8(η-L)2(η-LH)2Cl4] (4), [Ca4Zr2Cp2(μ4-Cl)(μ-Cl)3(μ3,η2-L)4(μ,η2-L)4Cl2] (5), [CaTiCl2(μ,η2-L′)3(η-L′H)3][L′] (6), [Ca2Ti(μ,η2-L′)6Cl2] (7), [Mn4Ti4(μ-Cl)2(μ3,η2-L)2(μ,η2-L)10Cl6] (8), and [Mn10Zr10(μ4-O)10(μ3-O)4(μ3,η2-L)2(μ,η2-L)16(μ,η-L)4(η-L)2Cl8] (9), were obtained in good yield

  报道了一种由廉价的有机金属前体合成非有机金属杂金属簇的简单有效策略。这种独特的合成的方法涉及消除从CP中的环戊二烯基环的2的MC1 2（M =钛，锆，铪），其在CPH的M'L存在2或M'L' 2（M'=钙，锶，锰;作为质子源的醇中的CH 3 OCH 2 CH 2 OH = LH或（CH 3）2 NCH 2 CH 2 OH = L'H）。在反应中呈现了一系列化合物，内[Ca 4的Ti 2（μ 6 -O）（μ 3，η 2 -L）8（η-L）2氯4 ]（1），[锶4的Hf 2（μ 6 -O）（μ 3，η 2 -L）8（η-L）2（η- LH）4氯4 ]（2），内[Ca 4的Zr 2（μ 6 -O）（μ-Cl）的4（μ，η 2 -L）8氯2 ]（3），[锶4的Ti 2（μ 6 -O）（μ 3，η 2-L）8（η-L）2（η-LH）2氯4 ]（4），内[Ca 4的Zr 2的Cp 2（μ 4 -Cl）（μ-Cl）的3（μ
• Heteronuclear Alkoxide Compounds Containing Copper and Alkaline Earth Metals
  作者：Woflgang Bidell、H. William Bosch、Dario Veghini、Hans-Ulrich Hund、Joachim Döring、Heinz Berke

  DOI：10.1002/hlca.19930760139

  日期：1993.2.10

  The tetrameric Cu(β-diketonate) alkoxide complex [Cu(thd)(OCH2CH2OCH3)]4 (thd = 2,2,6,6-tetramethyl-3,5-heptanedionate; 1a) reacts with the alkaline earth metal alkoxides [M(OCH2CH2OCH3)2] (M = Ca, 2a; M = Sr, 2b; M = Ba, 2c) to yield the heteronuclear compounds [Cu2M(thd)3(OCH2CH2OCH3)3] (M = Ca, 6a; M = Sr, 6b). These heterometallic complexes were also obtained in the reaction of 1a and the mixed

  四聚体Cu（β-二酮酸酯）醇盐配合物[Cu（thd）（OCH 2 CH 2 OCH 3）] 4（thd = 2,2,6,6-四甲基-3,5-庚二酮酸酯; 1a）与碱反应稀土金属醇盐[M（OCH 2 CH 2 OCH 3）2 ]（M = Ca，2a ; M = Sr，2b ; M = Ba，2c）生成杂核化合物[Cu 2 M（thd）3（OCH 2 CH 2 OCH 3）3 ]（M = Ca，6a ; M = Sr，6b）。这些异金属配合物也是在1a与β-二酮酸-醇盐[M x（thd）y（OCH 2 CH 2 OCH 3）2x-y ]（M = Ca，x = 7，ÿ = 6，3 M = SR，; X = 5，ÿ = 3，4分别地）。相比之下，1a与类似的[Ba（thd）（OCH 2 CH 2 OCH 3）]（5a）反应生成a [Ba 2 Cu 2（thd）4（OCH 3）4（HOCH 2 CH
• Synthesis and Application of [Mo₈O₁₆Cl₂(OCH₃)₆(HOCH₃)₄] to Magnetoresistant Oxides
  作者：Hee K. Chae、Jung Young Kim、Chulsoon Hwang、Bo Wha Lee

  DOI：10.1246/cl.2002.650

  日期：2002.7

  An octanuclear oxomolybdenum(V) cluster compound [Mo8O16Cl2(OCH3)6(HOCH3)4] was prepared from the reaction of oxomolybdenum(V) chloride and the potassium salt of triethanolamine in methanol. The complex was used to prepare Sr2FeMoO6, which shows a very high negative magnetoresistance of 33% with a magnetic field of 0.8 T at 12 K.

  由氧代钼(V)氯化物和三乙醇胺钾盐在甲醇中反应制备八核氧代钼(V)簇化合物[Mo8O16Cl2(OCH3)6(HOCH3)4]。该配合物用于制备 Sr2FeMoO6，在 12 K 时的磁场为 0.8 T 时显示出 33% 的非常高的负磁阻。
• Metallization induced band bending of SrTiO3(100) and Ba0.7Sr0.3TiO3
  作者：M. Copel、P. R. Duncombe、D. A. Neumayer、T. M. Shaw、R. M. Tromp

  DOI：10.1063/1.119148

  日期：1997.6.16

  We have investigated the interaction of Pt with single-crystal SrTiO3(001) and polycrystalline Ba0.7Sr0.3TiO3 thin films using photoemission spectroscopies. Significant band bending is caused by interface formation, determining the Schottky barrier height. We have depth profiled the band bending for Ba0.7Sr0.3TiO3 thin films, giving a direct measurement of the depletion depth and built-in potential

  我们使用光电发射光谱研究了 Pt 与单晶 SrTiO3(001) 和多晶 Ba0.7Sr0.3TiO3 薄膜的相互作用。显着的能带弯曲是由界面形成引起的，决定了肖特基势垒高度。我们对 Ba0.7Sr0.3TiO3 薄膜的能带弯曲进行了深度分析，直接测量耗尽深度和内置电位。
• Role of stoichiometry and structure in colossal magnetoresistive<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">La</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mi>−</mml:mi><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Sr</mml:mi></mml:mrow><mml:mrow><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Mn</mml:mi></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mi>−</mml:mi><mml:mi>y</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Ru</mml:mi></mml:mrow><mml:mrow><mml:mi>y</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">O</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn><mml:mo>+</mml:mo><mml:mi>δ</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>
  作者：Kannan M. Krishnan、H. L. Ju

  DOI：10.1103/physrevb.60.14793

  日期：——

  We have systematically investigated the effect of stoichiometry: [divalent doping (x), controlled oxygen content (delta) by vacuum annealing at elevated temperatures, and substitution (y) of Ru] and structure (substrate induced strain and its relaxation on annealing) on the magnetic/transport properties of the colossal magnetoresistive La1-xSrxMn1-yRuyO3+delta bulk and thin films prepared by both sol-gel and pulsed laser deposition techniques. The following results have been found: (1) Oxygen-reduced La0.7Sr0.3MnOz show a larger resistivity and lower T-c than the corresponding bulk materials. Moreover, their resistivity acid MR behavior can be precisely controlled by vacuum annealing and, in fact, they duplicate all the salient features observed in divalent-doped manganites. (2) The metal-insulator transitions Of thin films grown on lattice-matched substrates is observed to be a function of thickness due to the accommodation of epitaxial strain and the associated Mn-O-Mn bond-distortions. (3) Ru doped La0.7Sr0.3Mn1-yRuyO3, 0 less than or equal to y less than or equal to 0.2 samples show a surprisingly small decrease in T-c. This is attributed to the exceptional ability of Ru, unlike other substitutions in Mn sites, to stabilize magnetic ordering at elevated temperatures. (4) Oxygen K-edge (core level excitation of oxygen 1s electrons into empty p-like states) electron-energy-loss spectra of divalent-doped La1-xSrxMnO3 (0