trans-Mn(hexafluoroacetylacetonato)2(acetone)2 | 1072901-89-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: trans-Mn(hexafluoroacetylacetonato)2(acetone)2
• 英文别名: Mn(hexafluoroacetylacetonate)2(acetone)2；Mn(hfac)2(Me2CO)2；trans-Mn(hfac)2(acetone)2
• CAS: 1072901-89-3
• 化学式: C₁₆H₁₄F₁₂MnO₆
• 分子量: 585.202
• InChiKey: ATVVEAVPMFGRQE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
  None
• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  [Mn(hfac)2]3 、 丙酮 以 丙酮 为溶剂， 生成 trans-Mn(hexafluoroacetylacetonato)2(acetone)2
  参考文献：
  名称：

  第一排二价过渡金属的氟化β-二酮：合成未溶剂化物质的新方法。

  摘要：

  已经提出了用于制备未溶剂化形式的金属β-二酮酸盐的原始低温固态路线。定量分离了四种新的第一排二价过渡金属β-二酮酸盐M（hfac）2（M = Mn（1），Fe（2），Co（3）和Ni（4）; hfac =六氟乙酰丙酮酸盐）屈服。化合物1-3是通过相应的M（hfac）3与金属粉末之间的配位反应获得的。Ni（hfac）2（4）是通过用Cu（hfac）2氧化金属镍而合成的。所有产品均已通过X射线粉末分析和单晶衍射技术进行了光谱表征。1-4的固态结构具有多核分子，其中配位不饱和金属中心通过路易斯酸碱与以螯合桥联方式起作用的二酮酸酯配体的氧原子相互作用而满足八面体环境。已经显示出标题过渡金属二酮酸酯在升华-沉积过程以及在非配位溶剂的溶液中保留其多核结构。在配位溶剂中，1-4分子迅速形成单核M（hfac）2L2（L =供体溶剂）复合物。

  DOI：

  10.1021/ic801320p

文献信息

• New Class of Single-Source Precursors for the Synthesis of Main Group−Transition Metal Oxides: Heterobimetallic Pb−Mn β-Diketonates
  作者：Haitao Zhang、Jen-Hsien Yang、Roman V. Shpanchenko、Artem M. Abakumov、Joke Hadermann、Rodolphe Clérac、Evgeny V. Dikarev

  DOI：10.1021/ic901107s

  日期：2009.9.7

  Heterometallic lead-manganese beta-diketonates have been isolated in pure form by several synthetic methods that include solid-state and solution techniques. Two compounds with different Pb/Mn ratios, PbMn2(hfac)(6) (1) and PbMn(hfaC)(4) (2) (hfac = hexafluoroacetylacetonate), pan be obtained in quantitative yield by using different starting materials. Single crystal X-ray investigation revealed that the solid-state structure of I contains trinuclear molecules in which lead metal center is sandwiched between two [Mn(hfaC)(3)] units, while 2 consists of infinite chains of alternating [Pb(hfac)(2)] and [Mn(hfac)(2)] fragments. The heterometallic structures are held together by strong Lewis acid-base interactions between metal atoms and diketonate ligands acting in chelating-bridging fashion. Spectroscopic investigation confirmed the retention of heterometallic structures in solutions of non-coordinating solvents as well as upon sublimation-deposition procedure. Thermal decomposition of heterometallic diketonates has been systematically investigated in a wide range of temperatures and annealing times. For the first time, it has been shown that thermal decomposition of heterometallic diketonates results in mixed-metal oxides, while both the structure of precursors and the thermolysis conditions have a significant influence on the nature of the resulting oxides. Five different Pb-Mn oxides have been detected by X-ray powder diffraction when studying the decomposition of 1 and 2 in the temperature range 500-800 degrees C. The phase that has been previously reported as "Pb0.43MnO2.18" was synthesized in the pure form by decomposition of 1, and crystallographically characterized. The orthorhombic unit cell parameters of this oxide, obtained by electron diffraction technique, have been subsequently refined using X-ray powder diffraction data. Besides that, a previously un.known lead-manganese oxide has been obtained at low temperature decomposition and short annealing times. The parameters of its monoclinically distorted unit cell have been determined. The EDX analysis revealed that this compound has a Pb/Mn ratio close to 1:4 and contains no appreciable amount of fluorine.