cerium-silicon | 12014-84-5

• 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: cerium-silicon
• 英文别名: Cerium--silane (1/1)；cerium;silane
• CAS: 12014-84-5
• 化学式: CeSi
• 分子量: 168.206
• InChiKey: CJEFJSGCSHHYSW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.45
• 重原子数：
  2.0
• 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：

  磷化氢 、 cerium-silicon 反应 240.0h， 生成
  参考文献：
  名称：

  第三次是魅力：磷方形层变形引起的LnSiP3（Ln = La和Ce）错综复杂的非中心对称多态性

  摘要：

  报告了Ln SiP 3（Ln = La和Ce）族化合物中的复杂多态关系。为了克服稀土金属和难熔硅与磷的反应性差异，开发了一种创新的合成方法。原子混合反应LN与P +硅允许超过导致LaSiP的三个新的多晶型物靶向隔离反应结果选择性控制3和CeSiP的两种多晶型3。原位X射线衍射研究表明，开发的方法绕开了热力学死角即二元SiP的形成。小心重新确定的晶体结构的排除CeSiP的先前报告的有序中心对称结构3和显示该主LN的SiP 3多晶型物在非中心对称结晶PNA 2 1和AEA 2空间群为特色的定期P正方形的不同失真产生顺-反1D磷链（Pna 2 1）或无序2D磷层（Aea）的净值;2）。通过拉曼光谱证实了Aea 2 LaSiP 3多晶型物中P层的无序二维性质。对于LaSiP 3观察到独特的向心P 2 1 / c多晶型，并且具有完全不同的晶体结构，缺少P层。在用于LaSiP增加的温度连续多晶型转变3（PNA

  DOI：

  10.1039/d1dt00845e
• 作为产物：
  描述：

  氢化铈 (CeH3) 、 硅烷 以 neat (no solvent, solid phase) 为溶剂， 生成 cerium-silicon
  参考文献：
  名称：

  近藤晶格系统 CeSix 中磁性-非磁性交叉区域的研究

  摘要：

  表明该样品非常接近该系列中磁性-非磁性转变的临界浓度。在 x 的样品的电阻率中可以看到高温异常

  DOI：

  10.1088/0953-8984/4/21/017

文献信息

• Photoluminescence properties of Y5Si3O12N:Ce3+ blue-emitting phosphors for white LED
  作者：Fa-Chun Lu、Shu-Qing Guo、Zhi-Ping Yang、Yan-Min Yang、Pan-Lai Li、Xu Li、Quan-Lin Liu

  DOI：10.1016/j.jallcom.2012.01.044

  日期：2012.4

  ions and two types of photoluminescence centers (Ce(1) 3+ and Ce(2) 3+ ) have been formed. The excitation and emission processes of Ce(1) 3+ and Ce(2) 3+ photoluminescence centers were identified and studied. The concentration- and temperature-dependent properties of these Y 5 Si 3 O 12 N:Ce 3+ phosphors were investigated. This study shows these blue Y 5 Si 3 O 12 N:Ce 3+ phosphors the potential applications

  摘要 已经合成了由 (Y 1− x Ce x ) 5 Si 3 O 12 N ( x = 0–0.1) 组成的蓝色氧氮硅酸盐荧光粉。对结构、光致发光特性以及结构与发光之间的关系进行了研究和讨论。获得了Y 5 Si 3 O 12 N的原子位置和晶格参数。Y 原子在结构中占据两个结晶位点（Y(1) 和 Y(2)）。Ce 3+ 离子被Y 3+ 离子取代，并且形成了两种类型的光致发光中心（Ce(1) 3+ 和Ce(2) 3+ ）。Ce(1) 3+ 和Ce(2) 3+ 光致发光中心的激发和发射过程被确定和研究。研究了这些 Y 5 Si 3 O 12 N:Ce 3+ 磷光体的浓度和温度相关特性。这项研究显示了这些蓝色 Y 5 Si 3 O 12 N：
• Investigation of the magnetic-non-magnetic crossover region in the Kondo lattice system CeSi_x
  作者：P Hill、F Willis、N Ali

  DOI：10.1088/0953-8984/4/21/017

  日期：1992.5.25

  susceptibility and magnetization for polycrystalline samples of the alloys CeSix (1.6 or=1.90 do not. This correlates well with previous studies of these samples. However, samples with x=1.70 and 1.75 show the presence of an anomalous second peak at a slightly higher temperature than the ferromagnetic ordering temperature. CeSix with x=1.90 shows interesting resistive behaviour with characteristics of

  表明该样品非常接近该系列中磁性-非磁性转变的临界浓度。在 x 的样品的电阻率中可以看到高温异常
• Unusual Silicon Connectivities in the Binary Compounds GdSi5, CeSi5, and Ce2Si7
  作者：Aron Wosylus、Katrin Meier、Yurii Prots、Walter Schnelle、Helge Rosner、Ulrich Schwarz、Yuri Grin

  DOI：10.1002/anie.201003490

  日期：2010.11.15

  Under high‐pressure high‐temperature conditions, the title compounds with 4, 5, 6, or 8 SiSi contacts are formed. The interatomic distances can be scaled to the number of homonuclear neighbors in the silicide framework. Analysis of the chemical bonding reveals multicenter bonds between metal and Si atoms (see figure for CeSi5: Si blue and green, Ce red) and a contribution of semi‐core states (the

  在高压高温条件下，形成具有4、5、6或8个SiSi触点的标题化合物。原子间距离可以按比例调整为硅化物框架中同核邻居的数量。化学键的分析揭示了金属和Si原子之间的多中心键（参见CeSi 5的图：Si蓝色和绿色，Ce红）以及Ce的半芯态（倒数第二个壳）对化学键的贡献。
• The Ce-Ni-Si system as a representative of the rare earth-Ni-Si family: Isothermal section and new rare-earth nickel silicides
  作者：A.V. Morozkin、A.V. Knotko、A.V. Garshev、V.O. Yapaskurt、R. Nirmala、S. Quezado、S.K. Malik

  DOI：10.1016/j.jssc.2016.09.001

  日期：2016.11

  The Ce-Ni-Si system has been investigated at 870/1070 K by X-ray and microprobe analyses. The existence of the known compounds, i.e.: Ce2Ni15.8Si1.2 (Th2Ni17-type), Ce2Ni15-14Si2-3 (Th2Zn17-type), CeNi(8.6)Si(2.)4 (BaCd11-type), CeNi8.8Si4.2 (LaCo9Si4-type), CeNi6Si6 (CeNi6Si6-type), CeNi5Si1-0.3 (TbCu7-type), CeNi4Si (YNi4Si-type), CeNi2Si2 (CeGa2Al2-type), Ce2Ni3Si5 (U2Co3Si5-type), Ce3Ni6Si2 (Ce3Ni6Si2-type), Ce3Ni4Si4 (U3Ni4Si4-type), CeNiSi2 (CeNiSi2-type), similar to CeNi1.3Si0.7 (unknown type structure), Ce6Ni7Si4 (Pr6Ni7Si4-type), CeNiSi (LaPtSi-type), CeNi0.8-0.3Si1.2-1.7 (AlB2-type), similar to Ce2Ni2Si (unknown type structure), similar to Ce4.5Ni3.5Si2 (unknown type structure), Ce15Ni7Si10 (Pr15Ni7Si10-type), Ce5Ni1.85Si3 (Ce5Ni1.85Si3-type), Ce6Ni1.4Si3.4 (Ce6Ni1.67Si3-type), Ce7Ni2Si5 (Ce7Ni2Si5-type) and Ce3NiSi3 (Y3NiSi3-type) has been confirmed in this section.Moreover, the type structure has been determined for similar to Ce2Ni2Si (Mo2NiB2-type Ce2Ni2.5Si0.5) and similar to Ce4.5Ni3.5Si2 (W3CoB3-type Ce3Ni3-2.7Si1-1.3) and new ternary phases Ce2Ni6.25Si0.75 (Gd2Co7-type), CeNi7-7.6Si6.54 (GdNi7Si6-type) and similar to Ce27Ni42Si31 (unknown type structure) have been identified in this system.Quasi-binary phases, solid solutions, were detected at 870/1070 K for CeNi5, CeNi3 and CeSi2; while no appreciable solubility was observed for the other binary compounds of the Ce-Ni-Si system.As a prolongation of Rare Earth-Ni-Si system's isostructural rows, LaNi7Si6 and YNi6.6Si6.1 (GdNi7Si6-type), ScNi6Si6 (YCo6Ge6-type), NdNi6Si6 (YNi6Si6-type), Tb, Ho}(2)Ni15Si2 (Th2Zn17-type), Nd2Ni2.3Si0.7 and Sm2Ni2.2Si0.8 (Mo2NiB2-type), Nd3Ni2.55Si1.45 (W3CoB3-type) and Tb, Dy}(7)Ni50Si19 (Y7Ni49Si20-type) compounds were synthesized and investigated.Magnetic properties of the CeNi6Si6, CeNi7Si6, CeNi3.5Si4.2, Ce6Ni7Si4, CeNi5Si, Ce2Ni2.5Si0.5, Nd2Ni2.3Si0.7 and Dy7Ni50Si19 compounds have also been investigated and are presented here. (C) 2016 Elsevier Inc. All rights reserved.
• Crystal structure and photoluminescence of (La1−xCex)5Si3O12N
  作者：F.C. Lu、X.P. Song、Q.L. Liu

  DOI：10.1016/j.jallcom.2010.10.148

  日期：2011.2

  Oxonitridosilicate phosphors with compositions of (La1-xCex)(5)Si3O12N (x = 0-0.1) have been synthesized. The XRD analyses show that all the compounds are single polycrystalline La5Si3O12N phase. La atoms occupy two crystallographic sites in the structure. Two groups of photoluminescence spectra have been observed and can be ascribed to the excitation and emission of the two types of Ce3+ photoluminescence centers (Ce(1)(3+) and Ce(2)(3+)) in the crystallographic sites of La(1) and La(2). The energy transfer between the two types of photoluminescence centers has been discussed. Schematic energy levels of Ce3+ ions at the two crystallographic sites are given. Luminescence concentration quenching occurs when Ce content is more than 3 mol%. The quenching temperature is evaluated to be about 406 K for the 3 mol% Ce content sample. This study shows these phosphors potential candidates for application in three-phosphor-converted white LEDs. (C) 2010 Elsevier B.V. All rights reserved.