calcium tristannide

• 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: calcium tristannide
• 英文别名: Ca tristannide
• 化学式: CaSn₃
• 分子量: 396.208
• InChiKey: ZIVUHDHYEVSNEL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.66
• 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：
  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：

  calcium tristannide 以 neat (no solvent) 为溶剂， 生成 tin
  参考文献：
  名称：

  Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Sn: MVol.D, 9.1.8, page 121 - 122

  摘要：

  DOI：
• 作为产物：
  描述：

  tin 、 calcium 以 melt 为溶剂， 生成 calcium tristannide
  参考文献：
  名称：

  Phase diagram of the Ca–Sn system

  摘要：

  The phase diagram of the Ca-Sn system has been investigated in the whole composition range using differential thermal analysis, metallographic analysis, single-crystal and powder X-ray diffraction. Seven intermediate phases have been found. Four of them have been confirmed: CaSn3 (AuCu3-type), CaSn (CrB-type), Ca31Sn20 (Pu31Rh20-type) and Ca2Sn (Co2Si-type); while Ca7Sn6 (Ca7Sn6-type), Ca36Sn23 (Yb36Sn23-type) and Ca5Sn3 (Cr5B3-type) have been identified and characterized for the first time. Four eutectic points occur in this system: at about 5 at.% Sn and 780 degreesC, 48 at.% Sn and 995 degreesC, 68 at.% Sn and 610 degreesC, and at less than 1 at.% Ca and 225 degreesC. (C) 2000 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s0925-8388(00)01150-6

文献信息

• SrZn2Sn2 and Ca2Zn3Sn6 — two new Ae–Zn–Sn polar intermetallic compounds (Ae: alkaline earth metal)
  作者：Saskia Stegmaier、Thomas F. Fässler

  DOI：10.1016/j.jssc.2012.04.027

  日期：2012.8

  SrZn2Sn2 and Ca2Zn3Sn6, two closely related new polar intermetallic compounds, were obtained by high temperature reactions of the elements. Their crystal structures were determined with single crystal XRD methods, and their electronic structures were analyzed by means of DFT calculations. The Zn–Sn structure part of SrZn2Sn2 comprises (anti-)PbO-like ZnSn4/4} and SnZn4/4} layers. Ca2Zn3Sn6 shows

  通过元素的高温反应，得到了两种密切相关的新型极性金属互化物SrZn 2 Sn 2和Ca 2 Zn 3 Sn 6。用单晶XRD方法测定了它们的晶体结构，并通过DFT计算分析了它们的电子结构。SrZn 2 Sn 2的Zn-Sn结构部分包括（反）PbO状ZnSn 4/4 }和SnZn 4/4 }层。Ca 2 Zn 3 Sn 6表现出相似的ZnSn 4/4 }层和Sn 4由共价键合的被锌原子覆盖的锡支架构成的Zn}平板。对于这两个阶段，两种类型的层通过Zn-Sn键交替堆叠和互连。SrZn 2 Sn 2采用SrPd 2 Bi 2结构类型，并且Ca 2 Zn 3 Sn 6与R 2 Zn 3 Ge 6化合物（R = La，Ce，Pr，Nd）同型。能带结构计算表明SrZn 2 Sn 2和Ca 2 Zn 3 Sn 6均是金属的。对具有电子定位功能（ELF）的化学键的分析显示，两个标题相的层之间都存在
• Systematics in intermetallic compounds containing intermediate-valent ytterbium
  作者：J.C.P. Klaasse、F.R. de Boer、P.F. de Châtel

  DOI：10.1016/0378-4363(81)90078-4

  日期：1981.7
• Nontrivial paired states in novel topological superconductors
  作者：S.M.A. Radmanesh、S.A. Seyyed Ebrahimi、A. Diaconu、J.Y. Liu

  DOI：10.1016/j.jallcom.2020.156498

  日期：2020.12

  We report on the superconductive paired states in TbPdBi, beta-type FeSe and CaSn3 single crystals through temperature dependence of magnetic penetration depth analysis down to 0.040 K. For half-Heusler TbPdBi, in ultra-low temperature region we traced the T-3 power-law behavior of penetration depth indicating the nodeless topological superconductivity with anisotropic gap structure which was confirmed with the analysis of superfluid density. That highlights the role of thermally activated quasi-particles in the pairing mechanism of TBPdBi for which the variation of Delta lambda(T) wanders off the renown quadratic behavior of penetration depth. In FeSe the contribution of London depth was described with a power law (n approximate to 2.4) and the superfluid density fitted well with two-band d + d model in which the values of both gaps are substantially smaller than the gap size expected by the isotropic BCS model, due to the nodeless anisotropic gap symmetry. In CaSn3, temperature variation of magnetic penetration depth exhibited linear behavior which is ascribed to the topologically nontrivial electronic states. Also, fitting the results of superfluid density exhibited features of multiband pairing allowing the nodal gap in the electronic states which is in good agreement with the expectation of London penetration depth. The complex superconducting order parameter is suggestive of two-dimensional spin singlet or mixing singlet-triplet pairing states behind the signatures of superconductivity in CaSn3. The mechanisms of pairing symmetry uncovered by the temperature dependence of penetration depth study of TbPdBi, FeSe and CaSn3 meet the requirements for topological superconductivity. (C) 2020 Elsevier B.V. All rights reserved.
• Hume-Rothery, W., Journal of the Institute of Metals, 1926, vol. 35, p. 295 - 361
  作者：Hume-Rothery, W.

  DOI：——

  日期：——