lead oleate

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: lead oleate
• 英文别名: lead(2+);octadec-9-enoate
• 化学式: 2C₁₈H₃₃O₂*Pb
• 分子量: 770.118
• InChiKey: REFWIARLCGMEHK-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  4.39
• 重原子数：
  21.0
• 可旋转键数：
  15.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  40.13
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  lead oleate 在 二苯基膦 作用下， 以 not given 为溶剂， 生成 lead
  参考文献：
  名称：

  硫属元素铅纳米晶形成机理研究

  摘要：

  基于来自 31P NMR 光谱的证据，并使用 PbSe 作为模型，我们提出了两种同步机制，通过这些机制，在硫族化合物铅纳米晶体 (NCs) 的制备中形成“单体”。在一种机制中，硒以 Se2- 物质的形式传递，而在另一种机制中，Se0 与已经被有机膦还原的金属反应。后一种机制有助于解释 NC 制剂对有机膦纯度的敏感性，并允许对批量 NC 反应进行合理修改以提高产量。

  DOI：

  10.1021/ja062626g
• 作为产物：
  描述：

  油酸 、 lead(II) acetate trihydrate 反应 1.0h， 生成 lead oleate
  参考文献：
  名称：

  Solvothermal synthesis of PbTe/SnTe hybrid nanocrystals

  摘要：

  DOI：

  10.1016/j.cclet.2014.03.031
• 作为试剂：
  描述：

  甲胺氢溴酸盐 、 lead(II) bromide 在 lead oleate 、 正辛胺氢溴酸盐 作用下， 以 N,N-二甲基甲酰胺 、 甲苯 为溶剂， 生成 methylammonium lead bromide
  参考文献：
  名称：

  以 Pb(C17H33COO)2 为唯一铅源的强荧光 CH3NH3PbBr3 钙钛矿纳米晶体的可控合成†

  摘要：

  有机金属卤化物钙钛矿纳米晶体由于其尺寸可调的带隙能量和光致发光以及出色的电子和空穴迁移率，在光伏、发光二极管、低阈值激光器和光电探测器中具有巨大的应用潜力。然而，这种纳米晶体的合成通常受到溶液中结构稳定性差以及层状纳米晶体（纳米片）和球形纳米晶体（纳米颗粒）共存的困扰。在这里，我们展示了 CH 3 NH 3 PbBr 3纳米晶体的纯纳米颗粒形态可以通过使用油酸铅 (Pb(C 17 H 33 COO) 2) 作为唯一的铅源并使用短链和长链混合烷基铵进行控制。这些纳米晶体是单分散的（直径为 2.2 ± 0.4 nm）、高度荧光（量子产率接近 85%），并且在溶液中高度稳定（超过 30 天）。比较研究表明，CH 3 NH 3 PbBr 3纳米晶体的形状强烈依赖于铅源 PbBr 2和 Pb(C 17 H 33 COO) 2，并且随着短链和长链比例的变化而变化前体中的烷基铵。在 4 : 6 的最佳短链与长链烷基铵比例下，CH

  DOI：

  10.1039/c7ra11832e

文献信息

• Synthesis of PbSeTe Single Ternary Alloy and Core/Shell Heterostructured Nanocubes
  作者：Zewei Quan、Zhiping Luo、Welley Siu Loc、Jun Zhang、Yuxuan Wang、Kaikun Yang、Nathan Porter、Jun Lin、Howard Wang、Jiye Fang

  DOI：10.1021/ja207763p

  日期：2011.11.9

  We report a robust method for synthesis of monodisperse. PbSeTe single ternary alloy and core/shell heterostructured nanocubes, respectively. The key synthetic strategy to produce such different classes of nanocubes is to precisely control the time of reaction and successive growth. The crystallinity, shape/size distributions, structural characteristics, and compositions of as-prepared nanocubes, both, ternary alloy and core/shell, were carefully studied: A plausible growth mechanism for developing, each type of lead chalcogenide nanocubes is proposed. These delicately designed PbSeTe nanoscale architectures offer tunable compositions in PbSeTe ternary alloy and nano-interfaces in core/shell nanocubes, which are the critical factors in controlling thermal conductivity for applications in thermoelectrics.
• “Darker-than-Black” PbS Quantum Dots: Enhancing Optical Absorption of Colloidal Semiconductor Nanocrystals via Short Conjugated Ligands
  作者：Carlo Giansante、Ivan Infante、Eduardo Fabiano、Roberto Grisorio、Gian Paolo Suranna、Giuseppe Gigli

  DOI：10.1021/ja510739q

  日期：2015.2.11

  Colloidal quantum dots (QDs) stand among the most attractive light-harvesting materials to be exploited for solution-processed optoelectronic applications. To this aim, quantitative replacement of the bulky electrically insulating ligands at the QD surface coming from the synthetic procedure is mandatory. Here we present a conceptually novel approach to design light-harvesting nanomaterials demonstrating that QD surface modification with suitable short conjugated organic molecules permits us to drastically enhance light absorption of QDs, while preserving good long-term colloidal stability. Indeed, rational design of the pendant and anchoring moieties, which constitute the replacing ligand framework leads to a broadband increase of the optical absorbance larger than 300% for colloidal PbS QDs also at high energies (>3.1 eV), which could not be predicted by using formalisms derived from effective medium theory. We attribute such a drastic absorbance increase to ground-state ligand/QD orbital mixing, as inferred by density functional theory calculations; in addition, our findings suggest that the optical band gap reduction commonly observed for PbS QD solids treated with thiol-terminating ligands can be prevalently ascribed to 3p orbitals localized on anchoring sulfur atoms, which mix with the highest occupied states of the QDs. More broadly, we provide evidence that organic ligands and inorganic cores are inherently electronically coupled materials thus yielding peculiar chemical species (the colloidal QDs themselves), which display arising (opto)electronic properties that cannot be merely described as the sum of those of the ligand and core components.
• Confined-but-Connected Quantum Solids via Controlled Ligand Displacement
  作者：William J. Baumgardner、Kevin Whitham、Tobias Hanrath

  DOI：10.1021/nl401298s

  日期：2013.7.10

  Confined-but-connected quantum dot solids (QDS) combine the advantages of tunable, quantum-confined energy levels with efficient charge transport through enhanced electronic interdot coupling. We report the fabrication of QDS by treating self-assembled films of colloidal PbSe quantum dots with polar nonsolvents. Treatment with dimethylformamide balances the rates of self-assembly and ligand displacement to yield confined-but-connected QDS structures with cubic ordering and quasi-epitaxial interdot connections through facets of neighboring dots. The QDS structure was analyzed by a combination of transmission electron microscopy and wide-angle and small-angle X-ray scattering. Excitonic absorption signatures in optical spectroscopy confirm that quantum confinement is preserved. Transport measurements show significantly enhanced conductivity in treated films
• Controlled synthesis of brightly fluorescent CH₃NH₃PbBr₃perovskite nanocrystals employing Pb(C₁₇H₃₃COO)₂as the sole lead source
  作者：Xiaoming Fu、Zhiwei Peng、Chi Zhang、Yong Xia、Jianbing Zhang、Wei Luo、L. Jay Guo、Honglang Li、YuHuang Wang、Daoli Zhang

  DOI：10.1039/c7ra11832e

  日期：——

  and long-chain alkyl ammoniums in the precursors. At an optimal short to long-chain alkyl ammonium ratio of 4 : 6, the growth of CH3NH3PbBr3 nanoplatelets can be selectively suppressed with Pb(C17H33COO)2 as the sole lead source, enhancing the overall photoluminescence quantum yield of the produced CH3NH3PbBr3 nanocrystals. This work reveals important new insights for controlled synthesis of perovskite

  有机金属卤化物钙钛矿纳米晶体由于其尺寸可调的带隙能量和光致发光以及出色的电子和空穴迁移率，在光伏、发光二极管、低阈值激光器和光电探测器中具有巨大的应用潜力。然而，这种纳米晶体的合成通常受到溶液中结构稳定性差以及层状纳米晶体（纳米片）和球形纳米晶体（纳米颗粒）共存的困扰。在这里，我们展示了 CH 3 NH 3 PbBr 3纳米晶体的纯纳米颗粒形态可以通过使用油酸铅 (Pb(C 17 H 33 COO) 2) 作为唯一的铅源并使用短链和长链混合烷基铵进行控制。这些纳米晶体是单分散的（直径为 2.2 ± 0.4 nm）、高度荧光（量子产率接近 85%），并且在溶液中高度稳定（超过 30 天）。比较研究表明，CH 3 NH 3 PbBr 3纳米晶体的形状强烈依赖于铅源 PbBr 2和 Pb(C 17 H 33 COO) 2，并且随着短链和长链比例的变化而变化前体中的烷基铵。在 4 : 6 的最佳短链与长链烷基铵比例下，CH
• Solvothermal synthesis of PbTe/SnTe hybrid nanocrystals
  作者：Wei Jiang、Zheng-Long Yang、Ding Weng、Jun-Wei Wang、Yun-Feng Lu、Min-Juan Zhang、Zhen-Zhong Yang

  DOI：10.1016/j.cclet.2014.03.031

  日期：2014.6