uranium stannide | 574752-65-1

• 英文名称: uranium stannide
• 英文别名: lambda~2~-Stannane--uranium (1/1)；λ2-stannane;uranium
• CAS: 574752-65-1
• 化学式: SnU
• 分子量: 356.739
• InChiKey: NBWPNTUHUHRJHL-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  铀 、 tin 以 melt 为溶剂， 生成 uranium stannide
  参考文献：
  名称：

  Gibbs energies of formation of the intermetallic compounds of U–Sn system

  摘要：

  Gibbs energies of formation of the intermetallic compounds, USn3, U3Sn7, USn2, and USn were determined by using high temperature molten salt galvanic cells: U(s)//UCl3 in LiCl-KCl (eutectic)//U-Sn alloy, where pure uranium was used as one of the electrodes and a two phase alloy of uranium and tin as the other. The two phase alloys used in cells I, II, III and IV as the electrodes were < USn3 > + {Sn}, < U3Sn7 + USn3 >, < USn2 + U3Sn7 > and < USn + USn2 >, respectively. The Gibbs energies of formation (Delta(f)G(0)) of USn3, U3Sn7, USn2 and USn with respect to alpha-U and liquid Sn, in the temperature range 682-905 K, were determined to be given byDelta(f)G(0)(USn3)(kJ mol(-1)) = -172.8 + 0.061T (K),Delta(f)G(0)(U3Sn7)(kJ mol(-1)) = -527.8 + 0.200T (K),Delta(f)G(0)(USn2)(kJ mol(-1)) = -174.9 + 0.073T (K),Delta(f)G(0)(USn)(kJ mol(-1)) = 176.9 + 0.064T (K)The Gibbs energy of formation for U3Sn7, USn2 and USn have been obtained for the first time. (C) 2012 Elsevier B. V. All rights reserved.

  DOI：

  10.1016/j.jallcom.2012.09.144

文献信息

• Magnetic properties of the binary uranium stannides
  作者：P. Boulet、H. Noël

  DOI：10.1016/s0038-1098(98)00179-3

  日期：1998.5

  The structural chemistry and magnetic properties of the binary uranium stannides have been reinvestigated. Together with the well defined tristannide USn3 (AuCu3 type), the formation of all the recently reported binary uranium stannides is confirmed: U3Sn7 (Ce3Sn7 type), USn2 (ZrGa2 type), USn (ThIn type) and U5Sn4 (Ti5Ga4 type) and magnetic studies of these latter compounds have been carried out for the first time. USn3 is a spin fluctuating system and all the other binaries order magnetically at low temperature. U3Sn7 and USn2 are antiferromagnets with T-N = 50 K and 75 K and USn and U5Sn4 exhibit ferromagnetic ordering below T-C = 55 K and 65 K respectively. An interesting feature is that in each of these last two compounds, one of the uranium sublattices is characterized by very short uranium-uranium distances of 3.11 Angstrom which lies far below the Hill limit. (C) 1998 Elsevier Science Ltd. All rights reserved.