niobium tetratelluride | 12034-85-4

• 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 tetratelluride
• CAS: 12034-85-4
• 化学式: NbTe₄
• 分子量: 603.306
• InChiKey: BYRVVLCEPFRGFG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.67
• 重原子数：
  5.0
• 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：

  potassium cyanide 、 niobium tetratelluride 、 重氧水 以 neat (no solvent) 为溶剂， 以0%的产率得到
  参考文献：
  名称：

  摘要：

  The new cubane cluster complex K-6[Ta-4(mu (4)-O)(mu (3)-Te)(4)(CN)(12)] . KOH . 4H(2)O was prepared from a mixture of TaTe4 and KCN by the high-temperature synthesis followed by crystallization from aqueous solutions. The compound was characterized by cyclic voltammetry, X-ray diffraction analysis, and IR, Raman, and electronic spectroscopy. A comparative study of the clusters [M-4(mu (4)-O)(mu (3)-Te)(CN)(12)](6-) (M = Nb or Ta) containing the mu (4)-O ligands was carried out. These clusters are the first molecular chalcogenide cubane complexes of Group V metals.

  DOI：

  10.1023/a:1011332227265
• 作为产物：
  描述：

  铌 、 碲化氢 以 neat (no solvent) 为溶剂， 生成 niobium tetratelluride
  参考文献：
  名称：

  XAFS studies of local atomic structure of niobium tellurides

  摘要：

  We present XAFS (K-edge) studies of the local atomic structure around the Nb and Te ions in niobium tellurides (NbTe2,, Nb3Te4 and NbTe4) in comparison with ZrTe2. Using a multi-shell best-fit analysis procedure, we have reconstructed local environments of the Nb and Te ions and compared them with the existing structural models. We found that at the Nb K-edge the XAFS data of NbTe4 are extremely sensitive to metal clustering and to the subsequent departure from the average crystallographic positions. Moreover at Te K-edge the XAFS data allowed us to distinguish the different type of Te-Te bonds, for instance: the dimer (Te-Te: 2.9 Angstrom) and the squares (Te-Te: 3.3 Angstrom) in NbTe4, the interlayer and intralayer (Te-Te: 2.9-4.0 Angstrom) in NbTe2, through their Debye-Waller characteristics. In addition, a comparative analysis of Debye-Waller factors obtained in the different coordination shells (Te-Te, Te-Nb, Nb-Te and Nb-Nb) shows an evidence of correlation in the vibrational motion. (C) 1997 Elsevier Science S.A.

  DOI：

  10.1016/s0925-8388(97)00333-2

文献信息

• Synthesis, structure, and physical properties of the new layered ternary telluride TaPtTe5
  作者：Arthur Mar、James A. Ibers

  DOI：10.1016/0022-4596(91)90343-g

  日期：1991.6

  The new ternary telluride TaPtTe5 has been prepared. It is a metallic, layered material whose structure has been determined by single-crystal X-ray diffraction methods. TaPtTe5 is isostructural with NbNiTe5 and TaNiTe5. It crystallizes in space group D172h-Cmcm of the orthorhombic system with four formula units in a cell of dimensions a = 3.729(4), b = 13.231(11), c = 15.452(10) Å. The layers consist

  已经制备了新的三元碲化物TaPtTe 5。它是一种金属层状材料，其结构已通过单晶X射线衍射法确定。TaPtTe 5与NbNiTe 5和TaNiTe 5是同构的。它在尺寸为a = 3.729（4），b = 13.231（11），c = 15.452（10）的单元格中具有四个公式单位的正交晶系的空间群D 17 2 h - Cmcm中结晶。这些层包括由Te原子配位的二阶三角形棱柱形Ta原子和八面体Pt原子。TaPtTe 5沿金属表面显示出良好的金属导电性一个轴（σ 298 = 9.7×10 4 Ω -1厘米-1），并且是泡利顺磁（χ= 2.1×10 -4鸸鹋摩尔-1）。将TaPtTe 5的电和磁性能与NbNiTe 5和TaNiTe 5以及相关的化合物NbPdTe 5进行了比较。NbPdTe 5包含与本系列化合物相同的层，但堆叠方式不同；它是一种相对较差的金属导体。
• Synthesis and structure of a tetranuclear niobium telluride cuboidal cluster with a central μ4-O ligand
  作者：Vladimir P. Fedin、Irina V. Kalinina、Alexander V. Virovets、Nina V. Podberezskaya、Ivan S. Neretin、Yuri L. Slovokhotov

  DOI：10.1039/a805956j

  日期：——

  High-temperature reaction of NbTe4 with KCN at 450 °C and further crystallization from aqueous solution produces an oxygen-centered tetranuclear niobium cubane-type complex, isolated here as K6[Nb4OTe4(CN)12]·K2CO3·KOH· 8H2O, and characterized by X-ray crystallography.

  在450°C下，NbTe4与KCN发生高温反应，并从水溶液中进一步结晶，生成以氧为中心的四核铌立方烷型复合物，此处分离为K6[Nb4OTe4(CN)12]·K2CO3·KOH·8H2O，并通过X射线晶体学进行表征。
• Ba₃TM₂Se₉ (TM = Nb, Ta): Synthesis and Characterization of New Polyselenides
  作者：Ming-Yan Chung、Chi-Shen Lee

  DOI：10.1021/ic4013763

  日期：2014.1.6

  New ternary polyselenides Ba3TM2Se9 (TM = Nb, Ta) were synthesized through a solid-state reaction, and their structures were characterized using single-crystal X-ray diffraction. These compounds crystallized into a new structural type with a monoclinic space group P2(1)/c. The structures were constructed from distorted, close-packed layers of (3)(infinity)[BaSe3](3.33-) that incorporated TM atoms at octahedral sites and contained [(TM5+)(2)(Se2-)(7)(Se-2(2-))] units. Diffuse reflectance spectra and electronic resistivity measurements indicated semiconducting properties and optical band gaps of 1.3 eV for Ba3Nb2Se9 and 1.6 eV for Ba3Ta2Se9. Raman spectra were used to investigate the interatomic interactions. Calculations of the electronic structure verified the semiconducting behavior and bonding interaction of short Se-Se contacts.
• Selte, K.; Kjekshus, A., Acta Chemica Scandinavica (1947), 1964, vol. 18, p. 690 - 696
  作者：Selte, K.、Kjekshus, A.

  DOI：——

  日期：——
• Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Nb: MVol.B1, 135, page 297 - 298
  作者：

  DOI：——

  日期：——