phosphorous pentaselenide | 133323-68-9

• 分子结构分类: 无机化合物 - 均质非金属化合物 - 均质其他非金属化合物
• 英文名称: phosphorous pentaselenide
• 英文别名: 2,3,5,6,7-pentaselena-1,4-dophosphabicyclo{2.2.1}heptane；Diphosphorus pentaselenide；2,3,5,6,7-pentaselena-1,4-diphosphabicyclo[2.2.1]heptane
• CAS: 133323-68-9
• 化学式: P₂Se₅
• 分子量: 456.748
• InChiKey: YYDFCNRNAPFBJN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.18
• 重原子数：
  7
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  phosphorus(III) oxide 、 phosphorous pentaselenide 以 not given 为溶剂， 生成 Tetraphosphorus heptaoxide
  参考文献：
  名称：

  Clade, J.; Jansen, M.; Engels, B., Zeitschrift fur Anorganische und Allgemeine Chemie

  摘要：

  DOI：
• 作为产物：
  描述：

  5-iodo-2,3,6,7-tetraselena-1,4,5-triphosphabicyclo{2.2.1}heptane 以 二硫化碳 为溶剂， 生成 phosphorous pentaselenide 、 α-P4Se3I2
  参考文献：
  名称：

  贫磷硒化磷化合物的磷31和硒77核磁共振谱

  摘要：

  化合物P 3硒4 X（X = I，溴，氯，SC 2 H ^ 5，SC 5 ħ 11或SC 6 H ^ 5）已经进行了与相应的化合物的α-或磷贫类似物β-P 4 E 3 X 2（E = S或Se），其中PX单元已被Se取代。分析31 P和（部分）77的P的硒NMR谱3个硒4 X的化合物已经显示出P之间的耦合常数和化学位移的显着的对应3硒4 X和α-P 4S 3 X 2系列化合物。磷-31和77的硒NMR谱α-P 4硒3我2报道了比较。用Se进一步取代PX单元可得到最终的贫磷簇化合物P 2 Se 5，据报道该化合物由元素合成并得到完整NMR数据。因此，人们追求的更高的硒化磷是具有级联硒的贫磷分子，而不是具有环外硒的富硒结构。P 3 Se 4的旋光异构体的互变X卤化物（X = I，Br或Cl）在NMR时标上通过骨架重排已在几个温度下进行了研究，得出了动力学数据。

  DOI：

  10.1039/dt9910002643
• 作为试剂：
  描述：

  N-Carbobenzoxy-L-alanin-kohlensaeureaethylesteranhydrid 在 吡啶 、 phosphorous pentaselenide 、 氨 、 三氟乙酸酐 作用下， 以 四氢呋喃 、 乙醇 、 水 为溶剂， 反应 7.0h， 生成
  参考文献：
  名称：

  One-pot synthesis of orthogonally protected dipeptide selenazoles employing Nα-amino selenocarboxamides and α-bromomethyl ketones

  摘要：

  A simple and efficient protocol for the synthesis of selenazole containing dipeptidomimetics using N-alpha-amino selenocarboxamides and alpha-bromomethyl ketones is described. All the compounds made were isolated in good yields and fully characterized. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2014.10.085

文献信息

• Direct thermal neutron detection by the 2D semiconductor 6LiInP2Se6
  作者：Daniel G. Chica、Yihui He、Kyle M. McCall、Duck Young Chung、Rahmi O. Pak、Giancarlo Trimarchi、Zhifu Liu、Patrick M. De Lurgio、Bruce W. Wessels、Mercouri G. Kanatzidis

  DOI：10.1038/s41586-019-1886-8

  日期：2020.1.16

  Highly efficient neutron detectors are critical in many sectors, including national security1,2, medicine3, crystallography4 and astronomy5. The main neutron detection technologies currently used involve 3He-gas-filled proportional counters6 and light scintillators7 for thermalized neutrons. Semiconductors could provide the next generation of neutron detectors because their advantages could make them competitive with or superior to existing detectors. In particular, solids with a high concentration of high-neutron-capture nuclides (such as 6Li, 10B) could be used to develop smaller detectors with high intrinsic efficiencies. However, no promising materials have been reported so far for the construction of direct-conversion semiconductor detectors. Here we report on the semiconductor LiInP2Se6 and demonstrate its potential as a candidate material for the direct detection of thermal neutrons at room temperature. This compound has a good thermal-neutron-capture cross-section, a suitable bandgap (2.06 electronvolts) and a favourable electronic band structure for efficient electron charge transport. We used α particles from an 241Am source as a proxy for the neutron-capture reaction and determined that the compact two-dimensional (2D) LiInP2Se6 detectors resolved the full-energy peak with an energy resolution of 13.9 per cent. Direct neutron detection from a moderated Pu–Be source was achieved using 6Li-enriched (95 per cent) LiInP2Se6 detectors with full-peak resolution. We anticipate that these results will spark interest in this field and enable the replacement of 3He counters by semiconductor-based neutron detectors. The semiconductor 6LiInP2Se6 is used for the direct detection of thermal neutrons at room temperature, demonstrating good energy resolution.

  高效的中子探测器在许多领域都至关重要，包括国家安全1,2、医学3、晶体学4 和天文学5。目前使用的主要中子探测技术包括 3He 气体填充比例计数器6 和用于热化中子的光闪烁体7。半导体可以提供下一代中子探测器，因为半导体的优势可以使其与现有探测器竞争或优于现有探测器。特别是，具有高浓度高中子捕获核素（如 6Li、10B）的固体可用于开发具有高固有效率的小型探测器。然而，迄今为止还没有关于建造直接转换半导体探测器的材料的报道。在此，我们报告了半导体 LiInP2Se6，并证明了它作为室温下直接探测热中子的候选材料的潜力。这种化合物具有良好的热中子捕获截面、合适的带隙（2.06 电子伏特）和有利于电子电荷高效传输的电子带结构。我们使用来自 241Am 源的δ粒子作为中子俘获反应的替代物，并确定紧凑型二维（2D）LiInP2Se6 探测器能够分辨全能量峰，能量分辨率为 13.9%。使用富含 6Li（95%）的 LiInP2Se6 探测器实现了对缓和钚铍源的直接中子探测，并达到了全能峰分辨率。我们预计，这些成果将激发人们对这一领域的兴趣，并使基于半导体的中子探测器能够取代 3He 计数器。半导体 6LiInP2Se6 用于在室温下直接探测热中子，显示出良好的能量分辨率。
• [M4(Se2)2(PSe4)4 ]8−: a novel, tetranuclear, cluster anion with a stellane-like core
  作者：Konstantinos Chondroudis、Mercouri G. Kanatzidis

  DOI：10.1039/a607549e

  日期：——

  The molecular cluster compounds [M 4 (Se 2 ) 2 (PSe 4 ) 4 ] 8- (M=Cd, Hg) form by the reaction of Cd and Hg with basic polychalcophosphate fluxes.

  分子簇化合物 [M 4 (Se 2 ) 2 (PSe 4 ) 4 ] 8- （M=镉、汞）是由镉和汞与碱性聚磷酸盐通量反应形成的。
• Group 10 and Group 12 One-Dimensional Selenodiphosphates:A2MP2Se6(A=K, Rb, Cs;M=Pd, Zn, Cd, Hg)
  作者：Konstantinos Chondroudis、Mercouri G. Kanatzidis

  DOI：10.1006/jssc.1998.7791

  日期：1998.7

  andR/Rw=5.6/7.1%. Compounds 1–7 contain the ethane-like [P2Se6]4−group. Compound 1 has a one-dimensional structure with Pd2+in square-planar coordination. Compounds 2–5 also have one-dimensional structures related to the TiI3structure type. TheM2+ions and the P–P pairs reside in Se octahedra that share opposite faces in the chain direction. Compounds 6 and 7 have a related one-dimensional structure but

  的反应中号（中号=钯，锌，镉，汞），用熔融混合物阿2硒/ P 2硒5 / SE所产生的四元化合物阿2中号P 2硒6（甲= K，铷，铯; M＝ Pd，Zn，Cd，Hg）。A 2 M P 2 SE 6的晶体是空气和水稳定的。针对CS 2 PDP 2硒6（1）：单斜晶Ç 2 / C（15号）与一个= 12.9750（4），b = 8.3282（2）埃，c ^= 13.0568（1）Å，β = 102.940（2）°，Z = 4，R / R w = 6.7 / 7.5％。K 2 ZnP 2 SE 6（2），K 2 CdP 2 SE 6（3），Rb 2 CdP 2 SE 6（4）和Cs 2 CdP 2 SE 6（5）是等结构的。Rb 2 CdP 2 SE 6（4）：单斜晶P 2 1 / n（14号），a = 6.640（1）Å，b = 12.729（2）Å，c = 7.778（1）Å，β = 98.24（1）°，Z
• Palladium Chemistry in Molten Alkali Metal Polychalcophosphate Fluxes. Synthesis and Characterization of K₄Pd(PS₄)₂, Cs₄Pd(PSe₄)₂, Cs₁₀Pd(PSe₄)₄, KPdPS₄, K₂PdP₂S₆, and Cs₂PdP₂Se₆
  作者：Konstantinos Chondroudis、Mercouri G. Kanatzidis、Julien Sayettat、Stéphane Jobic、Raymond Brec

  DOI：10.1021/ic970593n

  日期：1997.12.1

  940(2) degrees, and Z = 4. Compounds I-III contain the discrete complexes [Pd(PQ(4))(2)](4)(-) (Q = S, Se). The mixed salt III contains additional noncoordinating [PSe(4)](3)(-) units. The structure of IV consists of Pd(II) in square planar sulfur coordination linked by edge-sharing [PS(4)](3)(-) tetrahedral groups to produce one-dimensional chains. The structures of V andVI feature the [P(2)Q(6)](4)(-)

  Pd与A（2）Q（x）（）/ P（2）Q（5）/ Q的熔融混合物的反应（A = K，Q = S，x = 3; A = Cs，Q = Se ，x = 1）产生了分子化合物K（4）Pd（PS（4））（2）（I），Cs（4）Pd（PSe（4））（2）（II）和Cs（10） Pd（PSe（4））（4）（III）和固态KPdPS（4）（IV），K（2）PdP（2）S（6）（V）和Cs（2）PdP（2 Se（6）（VI）。化合物I-III对空气和水敏感，而IV-VI对空气和水稳定。除了VI的黑色晶体外，所有晶体均为红色或暗红色。它们都呈棒状。化合物I在三斜空间群P＆onemacr中结晶。（第2个），其中a = 6.380（1）Å，b = 6.897（1）Å，c = 8.999（1）Å，alpha = 87.777（8）度，beta = 81.581（8）度，gamma = 84.429（ 9）度且Z
• New Lanthanide Selenophosphates. Influence of Flux Composition on the Distribution of [PSe₄]³^-/[P₂Se₆]⁴^- Units and the Stabilization of the Low-Dimensional Compounds A₃REP₂Se₈, and A₂(RE)P₂Se₇ (A = Rb, Cs; RE = Ce, Gd)
  作者：Konstantinos Chondroudis、Mercouri G. Kanatzidis

  DOI：10.1021/ic980025n

  日期：1998.7.1

  The reaction of Ce or Gd with a molten mixture of A(2)Se/P2Se5/Se (A = Rb, Cs) produced the quaternary compounds Rb3CeP2Se8 (I) and Cs3GdP2Se8 (II), as well as Rb2CeP2Se7 (III) and Rb2GdP2Se7 (IV). The orange crystals of I, II and the red crystals of III, IV are air- and water-sensitive. Compounds I, II crystallize in the monoclinic space group P2(1)/c, and for I, a = 9.6013(2) Angstrom, b = 18.0603(1) Angstrom, c = 10.0931(1) Angstrom, beta = 90.619(1)degrees, and Z = 4. Compounds III, IV crystallize in the monoclinic space group P2(1)/n, and for IV, a = 10.137(2) Angstrom, b = 7.212(1) Angstrom, c = 20.299(2) Angstrom, beta = 98.23(1)degrees, and Z = 4. Compounds I, II have a 1-D structure with [(RE)P2Se8](n)(3n-) chains separated by A(+) cations. The RE3+ lanthanide cation is in a bicapped trigonal prismatic coordination with four tridentate [PSe4](3-) ligands. Compounds III, IV possess a 2-D structure. Each layer consists of [RE(PSe4)](x) "chains" interstitched in two dimensions by hexadentate [P2Se6](4-) ligands. The trivalent RE cation is in a square antiprismatic coordination. The compounds were characterized with differential thermal analysis, far-IR, and solid-state UV/vis diffuse reflectance spectroscopy. Magnetic measurements indicate that the compounds obey the Curie law with mu(eff) values close to those of the free RE3+ ions.