niobium monophosphide

• 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: niobium monophosphide
• 英文别名: Niobium;phosphane；niobium;phosphane
• 化学式: NbP
• 分子量: 123.88
• InChiKey: VVUJUHRYAGXPMI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.06
• 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：

  niobium monophosphide 以 neat (no solvent) 为溶剂， 生成 磷化氢
  参考文献：
  名称：

  The preparation and properties of some transition phosphides

  摘要：

  DOI：

  10.1016/0022-5088(62)90037-1
• 作为产物：
  描述：

  octachlorotetrakis(cyclohexylphosphine)diniobium(IV) 以 neat (no solvent) 为溶剂， 生成 niobium monophosphide
  参考文献：
  名称：

  Synthesis, Structure, and Chemical Vapor Deposition Studies of Molecular Precursors to NbP Films

  摘要：

  Treatment of niobium pentachloride with cyclohexylphosphine and phenylphosphine in dichloromethane afforded octachlorotetrakis(cyclohexylphosphine)diniobium(IV) (85%) and octachlorotetrakis(phenylphosphine)diniobium-(IV) (88%), respectively, as brown-red and dark red crystalline solids. In addition, the phosphonium compound [P(C6H11)H-3](2)[NbCl6] was isolated in 68% yield from the same preparation of octachlorotetrakis(cyclohexylphosphine)diniobium(TV). Studies are described which demonstrate that the primary phosphine serves as the hydrogen atom source for the formation of the phosphonium salts. Octachlorotetrakis(cyclohexylphosphine)diniobium(IV) can be prepared in 77% yield by addition of cyclohexylphosphine to NbCl4(THF)(2) in toluene. The X-ray crystal structure determinations for two dimeric niobium(IV) complexes are described. Octachlorotetrakis(cyclohexylphosphine)diniobium(IV) crystallizes in the triclinic space group P (1) over bar with a = 9.904(2) Angstrom, b = 10.243 (2) Angstrom, c = 10.642(1) Angstrom, alpha = 76.33(2)degrees, beta = 67.231(8)degrees, gamma = 73.76(2)degrees, V = 945.7(3) Angstrom(3) and Z = 1. Octachlorotetrakis(phenylphosphine)diniobium(IV) crystallizes in the orthorhombic space group Pbca with a = 8.873(2) Angstrom, b = 17.394(6) Angstrom, c = 21.778(3) Angstrom, V = 3361.1(9) Angstrom(3), and Z = 4. Octachlorotetrakis(cyclohexylphosphine)diniobium(IV) and octachlorotetrakis(phenylphosphine)diniobium(IV) were evaluated as molecular precursors to niobium(III) phosphide (NbP) films in a chemical vapor deposition reactor Octachlorotetrakis(phenylphosphine)diniobium(Iv) was not volatile and was therefore not a useful precursor. However, octachlorotetrakis(cyclohexylphosphine)diniobium(IV) afforded specular, silver-colored films of NbP with substrate temperatures between 400 and 600 degrees C. The analysis of the films is presented.

  DOI：

  10.1021/ic990198s
• 作为试剂：
  描述：

  三乙醇胺 在 niobium monophosphide 、 Eosin Y 作用下， 以 水 为溶剂， 反应 3.0h， 生成 氢气
  参考文献：
  名称：

  使用非磁性Weyl半金属催化剂，磁场对析氢活性的影响。

  摘要：

  通过操纵参与的电子来控制反应动力学的外部开关可能很有趣，因为它可以改变反应速率而不影响反应路径。磁场像开关一样，是非侵入性的，可调节的且干净的。它也可以改变材料中的电子。我们研究了施加磁场对Weyl半金属NbP族的氢析出活性的影响，因为它们在室温下具有极高的迁移率和较大的磁阻，并且具有良好的氢析出性能。我们发现，通过施加约3500 G的磁场，NbP的析氢活性最多可提高95％。Weyl半金属家族的其他成员（也就是TaP，NbAs和TaAs）也表现出增强的析氢活性。从而，

  DOI：

  10.1039/d0dt00050g

文献信息

• A Series of MAX Phases with MA‐Triangular‐Prism Bilayers and Elastic Properties
  作者：Hongxiang Chen、Dongliang Yang、Qinghua Zhang、Shifeng Jin、Liwei Guo、Jun Deng、Xiaodong Li、Xiaolong Chen

  DOI：10.1002/anie.201814128

  日期：2019.3.26

  among MAX phases. Isostructural 321 phases V3As2C, Nb3P2C, and Ta3P2C are also found to exist. First‐principles calculations reveal the outstanding elastic stiffness in 321 phases. Among all 321 phases, Nb3P2C is predicted to have the highest elastic properties. These 321 phases, represented by a chemical formula Mn+1AnX, were added as new members to the MAX family and their other properties deserve

  我们报告了一种新型的MAX相（M =过渡金属，A =主族元素，X = C / N），Nb 3 As 2 C，命名为321相。它与以前的所有M n +1 AX n相不同，它包括在其晶胞中交替堆叠一个MX层和两个MA层，而在通常的MAX相中仅允许一个MA层。新的321相具有高达225（3）GPa的Nb 3 As 2 C体积模量，这是通过高压同步加速器X射线衍射确定的，这是MAX相中最高的值之一。同构321相V 3 As 2 C，Nb 3 P 2 C和Ta 3P 2 C也发现存在。第一性原理计算揭示了321相的出色弹性刚度。在所有321相中，Nb 3 P 2 C预计具有最高的弹性。用化学式M n +1 A n X表示的这321个相作为MAX系列的新成员加入，它们的其他性质值得进一步研究。
• Evolution of the Fermi surface of Weyl semimetals in the transition metal pnictide family
  作者：Z. K. Liu、L. X. Yang、Y. Sun、T. Zhang、H. Peng、H. F. Yang、C. Chen、Y. Zhang、Y. F. Guo、D. Prabhakaran、M. Schmidt、Z. Hussain、S.-K. Mo、C. Felser、B. Yan、Y. L. Chen

  DOI：10.1038/nmat4457

  日期：2016.1

  Band structures with Fermi arcs characteristic of Weyl semimetals are observed on NbP and TaP. By studying NbP, TaP and TaAs, the evolution of the Fermi surface with the spin–orbit coupling is reported. Topological Weyl semimetals (TWSs) represent a novel state of topological quantum matter1,2,3,4 which not only possesses Weyl fermions (massless chiral particles that can be viewed as magnetic monopoles in momentum space) in the bulk and unique Fermi arcs generated by topological surface states, but also exhibits appealing physical properties such as extremely large magnetoresistance and ultra-high carrier mobility5,6,7,8. Here, by performing angle-resolved photoemission spectroscopy (ARPES) on NbP and TaP, we directly observed their band structures with characteristic Fermi arcs of TWSs. Furthermore, by systematically investigating NbP, TaP and TaAs from the same transition metal monopnictide family, we discovered their Fermiology evolution with spin–orbit coupling (SOC) strength. Our experimental findings not only reveal the mechanism to realize and fine-tune the electronic structures of TWSs, but also provide a rich material base for exploring many exotic physical phenomena (for example, chiral magnetic effects, negative magnetoresistance, and the quantum anomalous Hall effect) and novel future applications3,4,9,10,11.

  在NbP和TaP上观察到了具有费米弧特征的韦尔半金属的带结构。通过研究NbP、TaP和TaAs，报告了费米面与自旋-轨道耦合的演变。拓扑韦尔半金属（TWS）是一种拓扑量子物质的新状态1,2,3,4，它不仅具有韦尔费米子（无质量的奇点粒子，在动量空间中可以看作是磁单极子）和由拓扑表面态产生的独特的费米弧，而且还表现出极具吸引力的物理性质，如极大的磁阻和超高的载流子迁移率5,6,7,8。在这里，通过对NbP和TaP进行角分辨光电子能谱（ARPES），我们直接观察到了它们具有TWS特征费米弧的带结构。此外，通过对同一过渡金属单氮化物家族的NbP、TaP和TaAs进行系统研究，我们发现了它们与自旋-轨道耦合（SOC）强度的费米学演化。我们的实验结果不仅揭示了实现和微调TWS电子结构的机制，而且还为探索许多奇特的物理现象（例如，奇点磁性效应、负磁阻和量子反常霍尔效应）和未来新的应用提供了丰富的材料基础3,4,9,10,11。
• Ternary Early-Transition-Metal Palladium Pnictides Zr₃Pd₄P₃, Hf₃Pd₄P₃, HfPdSb, and Nb₅Pd₄P₄
  作者：Meitian Wang、Robert McDonald、Arthur Mar

  DOI：10.1021/ic0006551

  日期：2000.10.1

  parameters of a = 16.387(2), b = 3.8258(5), and c = 9.979(1) A for Zr3Pd4P3 and a = 16.340(2), b = 3.7867(3), and c = 9.954(1) A for Hf3Pd4P3. The antimonide HfPdSb was identified by powder X-ray diffraction (orthorhombic, Pnma, Z = 4, a = 6.754(1) A, b = 4.204(1) A, and c = 7.701(2) A) and confirmed to be isostructural to ZrPdSb, which adopts the TiNiSi-type structure. The phosphide Nb5Pd4P4 adopts the

  几种早期过渡金属的三价钯锡化物是通过元素金属和二价锡化物ZrP，HfP，HfSb2或NbP的电弧熔融制备的，其结构已通过X射线衍射法确定。磷化物M3Pd4P3（M = Zr，Hf）采用一种新的结构类型（Pearson符号oP40），在Z = 4的正交晶体空间群Pnma中结晶，单位晶胞参数为a = 16.387（2），b = 3.8258（5） ，对于Zr3Pd4P3，c = 9.979（1）A；对于Hf3​​Pd4P3，a = 16.340（2）； b = 3.7867（3）； c = 9.954（1）A。通过粉末X射线衍射（斜方晶系，Pnma，Z = 4，a = 6.754（1）A，b = 4.204（1）A和c = 7.701（2）A）鉴定出锑化物HfPdSb，并证实是同构结构ZrPdSb，采用TiNiSi型结构。磷化物Nb5Pd4P4采用Nb5Cu4Si4型结构，在四边形空间群I4 /
• Superconductivity of niobium phosphorous sulphide, NbPS, prepared at high pressure
  作者：Ichimin Shirotani、Hiyoshi Kadoya、Chihiro Sekine、Sakae Todo、Takehiko Yagi、Yasuhiro Nakazawa、Kazushi Kanoda

  DOI：10.1088/0953-8984/11/32/314

  日期：1999.8.16

  Electrical resistivity and dc susceptibility of NbPS prepared at high pressure have been studied at low temperatures. The compound showed a superconducting transition at around 12 K. The resistance of NbPS was measured as a function of an applied magnetic field at constant temperature. The upper critical field obtained from this data was 17 tesla (T) at 0 K. This is the highest value reported in phosphide

  已在低温下研究了在高压下制备的 NbPS 的电阻率和直流磁化率。该化合物在 12 K 左右显示出超导转变。 NbPS 的电阻是在恒定温度下作为外加磁场的函数进行测量的。从该数据获得的上临界场在 0 K 时为 17 特斯拉 (T)。这是在磷化物超导体中报告的最高值。发现该化合物的相干长度为 44.0 A。 NbPS 的绝热比热测量是在 2 到 20 K 的温度范围内进行的。通过最小二乘法分析，热容符合表达式 C = T + T3，产生的值 = 6.5 mJ mol-1 K-2 和 = 0.6 mJ mol-1 K-4。发现 NbPS 的德拜温度 (D) 为 330 K。费米能级的态密度计算为 0。
• Stability and Vaporization Behaviour of Group IV–VI Transition Metal Monophosphides
  作者：K. A. GINGERICH

  DOI：10.1038/200877a0

  日期：1963.11

  purpose, a Knudsen effusion–mass spectrometer assembly similar to that described by Chupka and Inghram1 was used. Included in the investigation were the monophosphides of titanium, zirconium, hafnium, niobium, tantalum, molybdenum and tungsten.

  研究了 IV-VI 族过渡金属单磷化物的蒸发特性，以了解它们的热力学稳定性以及磷和相应过渡金属之间可能存在的二元气态分子。为此，使用了类似于 Chupka 和 Inghram1 描述的 Knudsen 渗出质谱仪组件。调查中包括钛、锆、铪、铌、钽、钼和钨的单磷化物。