Platinum--lambda~2~-stannane (1/2) | 12202-66-3

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 各种混合金属/非金属
• 英文名称: Platinum--lambda~2~-stannane (1/2)
• 英文别名: λ2-stannane;platinum
• CAS: 12202-66-3
• 化学式: PtSn₂
• 分子量: 432.5
• InChiKey: OETBPYQHOZKWRB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.83
• 重原子数：
  3.0
• 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：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  potassium hexachloropalatinate(IV) 、 Platinum--lambda~2~-stannane (1/2) 生成 platinum-tin
  参考文献：
  名称：

  Reacting the Unreactive:  A Toolbox of Low-Temperature Solution-Mediated Reactions for the Facile Interconversion of Nanocrystalline Intermetallic Compounds

  摘要：

  Metallurgical materials, including intermetallic compounds, are notoriously inert toward low-temperature reactivity. However, as nanocrystals, their reactivity is significantly enhanced. Here we show that intermetallic PtSn and AuCu nanocrystals can be converted, in solution at low temperatures, into derivative intermetallics. For example, PtSn can be converted into PtSn2 and Pt3Sn by reaction with SnCl2 and K2PtCl6, respectively. The reactions are also reversible, for example, the sequences PtSn --> PtSn2 --> PtSn and PtSn --> Pt3Sn --> PtSn are all readily achievable. The strategy also allows nanocrystalline AuCu to be successfully converted into AuCu3 via reaction with Cu(C2H3O2)2.H2O, suggesting that this approach may be general.

  DOI：

  10.1021/ja0627996
• 作为产物：
  描述：

  tin 、 铂 以 neat (no solvent) 为溶剂， 生成 Platinum--lambda~2~-stannane (1/2)
  参考文献：
  名称：

  用于燃料电池应用的有序金属间相的电催化活性

  摘要：

  已经研究了各种有序金属间相对各种潜在燃料的电催化活性，并将结果与​​纯多晶铂 (Pt(pc)) 电极的结果进行了比较。与 Pt 相比，在氧化起始电位和电流密度方面，大量有序金属间相表现出增强的电催化活性。PtBi、PtIn 和 PtPb 有序金属间相似乎是迄今为止测试的燃料电池应用中最有前途的电催化剂。特别是 PtPb，其起始电位比在甲醇氧化的情况下对 Pt 观察到的值低 100 mV，峰值电流密度大约高 40 倍。

  DOI：

  10.1021/ja038497a

文献信息

• The tin-rich part of the Au–Pt–Sn system
  作者：Alexandra Neumann Torgersen、Laila Offernes、A Kjekshus、A Olsen

  DOI：10.1016/s0925-8388(00)01241-x

  日期：2001.1

  The phase relations in the till-rich section (greater than or equal to 50 at.% Sn) of the system Au-Pt-Sn have been studied by powder X-lay diffraction, metallography, electron microprobe analysis and thermal analysis. The condensed phases occurring, tie-lines and tie-triangles are presented for an isothermal section of the tin-rich part of the phase diagram at 400 degreesC. There is a limited solid-solubility exchange between Au and Pt in most of the binary phases; however, for AuSn and Pt2Sn3 the ranges of homogeneity are appreciable. Up to 50% of the gold in AuSn can be replaced by platinum and up to ca. 20% of the platinum in Pt2Sn3 can be replaced by gold. A new ternary phase (attributed the formula AuPt2Sn3) has also been discovered, with a homogeneity range in the Au-Pt dimension between Au137Pt293Sn570 and Au196Pt241Sn563. AuPt2Sn4 is C-centred monoclinic with unit-cell dimensions a = 543.1(1), b = 537.3(1), c = 931.3(1) pm and beta = 101.17(1)degrees. (C) 2001 Elsevier Science B.V. All rights reserved.
• Ordered Intermetallic Pt–Sn Nanoparticles: Exploring Ordering Behavior across the Bulk Phase Diagram
  作者：Douglas Y. DeSario、Francis J. DiSalvo

  DOI：10.1021/cm5007197

  日期：2014.4.22

  Because the bulk phase diagram of Pt-Sn contains five different compounds (Pt3Sn, PtSn, Pt2Sn3, PtSn2, and PtSn4) with very different congruent or incongruent melting points, we chose this system to investigate factors that influence the homogeneity and structure of intermetallic nanoparticles with different compositions prepared by the same solution phase co-reduction reaction. Pt and Sn chloride precursors were reduced by alkali metal borohydrides in tetrahydrofuran. Of the five compositions, only Pt Sn forms ordered intermetallic nanoparticles (average domain size of 4.3 nm) at room temperature. As-prepared Pt3Sn nanoparticles adopt an alloy FCC structure and ordered into the cubic Cu3Au structure at the unexpectedly low annealing temperature of 200 degrees C. Despite their low bulk incongruent melting temperatures, the tin-rich compositions (PtSnx, where x = 3/2, 2, or 4), by contrast, form highly disordered products at room temperature and require annealing at >= 200 degrees C for crystallization and ordering to be observed. Phases prepared from tin(II) chloride exhibit co-reduction behavior different from that of tin(IV) chloride, the latter requiring overall higher temperatures to produce similarly ordered particles. Spectroscopic studies indicate that this behavior may be due to the formation of Pt-Sn complexes in solution prior to the reduction when tin(II) is used as a precursor, but not for tin(IV), resulting in more consistent nucleation of the target stoichiometric phases. The process of crystallization by annealing is discussed.
• Larchev, V. I.; Popova, S. V., Inorganic Materials, <hi>1984</hi>, vol. 20, p. 693 - 695
  作者：Larchev, V. I.、Popova, S. V.

  DOI：——

  日期：——
• Electrocatalytic Activity of Ordered Intermetallic Phases for Fuel Cell Applications
  作者：Emerilis Casado-Rivera、David J. Volpe、Laif Alden、Cora Lind、Craig Downie、Terannie Vázquez-Alvarez、Antonio C. D. Angelo、Francis J. DiSalvo、Héctor D. Abruña

  DOI：10.1021/ja038497a

  日期：2004.3.1

  The electrocatalytic activities of a wide range of ordered intermetallic phases toward a variety of potential fuels have been studied, and results have been compared to those of a pure polycrystalline platinum (Pt(pc)) electrode. A significant number of the ordered intermetallic phases exhibited enhanced electrocatalytic activity when compared to that of Pt, in terms of both oxidation onset potential

  已经研究了各种有序金属间相对各种潜在燃料的电催化活性，并将结果与​​纯多晶铂 (Pt(pc)) 电极的结果进行了比较。与 Pt 相比，在氧化起始电位和电流密度方面，大量有序金属间相表现出增强的电催化活性。PtBi、PtIn 和 PtPb 有序金属间相似乎是迄今为止测试的燃料电池应用中最有前途的电催化剂。特别是 PtPb，其起始电位比在甲醇氧化的情况下对 Pt 观察到的值低 100 mV，峰值电流密度大约高 40 倍。
• Reacting the Unreactive:  A Toolbox of Low-Temperature Solution-Mediated Reactions for the Facile Interconversion of Nanocrystalline Intermetallic Compounds
  作者：Robert E. Cable、Raymond E. Schaak

  DOI：10.1021/ja0627996

  日期：2006.8.1

  Metallurgical materials, including intermetallic compounds, are notoriously inert toward low-temperature reactivity. However, as nanocrystals, their reactivity is significantly enhanced. Here we show that intermetallic PtSn and AuCu nanocrystals can be converted, in solution at low temperatures, into derivative intermetallics. For example, PtSn can be converted into PtSn2 and Pt3Sn by reaction with SnCl2 and K2PtCl6, respectively. The reactions are also reversible, for example, the sequences PtSn --> PtSn2 --> PtSn and PtSn --> Pt3Sn --> PtSn are all readily achievable. The strategy also allows nanocrystalline AuCu to be successfully converted into AuCu3 via reaction with Cu(C2H3O2)2.H2O, suggesting that this approach may be general.