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titanium diselenide

中文名称
——
中文别名
——
英文名称
titanium diselenide
英文别名
——
titanium diselenide化学式
CAS
——
化学式
Se2Ti
mdl
——
分子量
205.8
InChiKey
XBNGKPXJEIISRD-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    -1.83
  • 重原子数:
    3.0
  • 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:
    参考文献:
    名称:
    Ehrlich, P., Zeitschrift fur anorganische Chemie, 1949, vol. 260, p. 1 - 18
    摘要:
    DOI:
  • 作为产物:
    描述:
    ethylselanylethane;titanium(4+);tetrachloride 以 neat (no solvent) 为溶剂, 生成 titanium diselenide
    参考文献:
    名称:
    四氯化钛与烷基硒化合物的加合物:二硒化钛薄膜的分子前体。
    摘要:
    在0°C的己烷中用二甲基二硒化物或二乙基二硒化物(1当量)处理四氯化钛(2当量),然后在-20°C结晶,得到(TiCl(4))(2)(Se(2)( CH(3))(2))(78%)和(TiCl(4))(2)(Se(2)(CH(2)CH(3))(2))(63%)分别为红色和橙色结晶固体。(TiCl(4))(2)(Se(2)(CH(2)CH(3))(2))在23°C的溶液和固态下均稳定,但(TiCl(4))( 2)(Se(2)(CH(3))(2))置​​于己烷溶液中分解为TiCl(4)(Se(CH(3))(2))(2),灰色硒和其他产物,固态或在250摄氏度升华。在环境温度下,在己烷中用2当量的二甲基硒化物或二乙基硒化物处理四氯化钛,得到光谱纯的砖红色固体TiCl(4)(Se(CH(3))(2))(2)(96%)或TiCl(4)(Se(CH(2)CH(3))(2))(2)(96%)分别。(TiC
    DOI:
    10.1021/ic970945q
  • 作为试剂:
    描述:
    乙醇titanium diselenide 氧气 作用下, 生成 溶剂黄146乙烯乙醛乙缩醛 、 methane
    参考文献:
    名称:
    Photocatalytic Reaction of Ethanol over Titanium Diselenide
    摘要:
    将 TiSe2 的乙醇悬浮液在 Ar、空气或 O2 气氛中于 298 K 下用紫外光照射。主要产物为乙醛、乙醛二乙缩醛(乙缩醛)、乙酸、水、氢气、乙烯、甲烷和二氧化碳。除氢气和乙烯外,空气或O2下的各产物收率均高于Ar下。铂在O2气氛下发挥其生成CH3COOH、缩醛、CO2、CH3CHO、CH4和H2O的作用,而在Ar气氛下则有助于生成CO2、CH4和H2。在 Ar 或 O2 气氛下没有观察到 Pt 对生成 C2H4 的影响。
    DOI:
    10.1246/bcsj.66.1038
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文献信息

  • Growth of Transition-Metal Dichalcogenides by Solvent Evaporation Technique
    作者:Dmitriy A. Chareev、Polina Evstigneeva、Dibya Phuyal、Gabriel J. Man、Håkan Rensmo、Alexander N. Vasiliev、Mahmoud Abdel-Hafiez
    DOI:10.1021/acs.cgd.0c00980
    日期:2020.10.7
    Due to their physical properties and potential applications in energy conversion and storage, transition-metal dichalcogenides (TMDs) have garnered substantial interest in recent years. Among this class of materials, TMDs based on molybdenum, tungsten, sulfur, and selenium are particularly attractive due to their semiconducting properties and the availability of bottom-up synthesis techniques. Here we report a method which yields high-quality crystals of transition-metal diselenide and ditelluride compounds (PtTe2, PdTe2, NiTe2, TaTe2, TiTe2, RuTe2, PtSe2, PdSe2, NbSe2, TiSe2, VSe2, ReSe2) from their solid solutions, via vapor deposition from a metal-saturated chalcogen melt. Additionally, we show the synthesis of rare-earth-metal polychalcogenides and NbS2 crystals using the aforementioned process. Most of the crystals obtained have a layered CdI2 structure. We have investigated the physical properties of selected crystals and compared them to state of the art findings reported in the literature. Remarkably, the charge density wave transition in 1T-TiSe2 and 2H-NbSe2 crystals is well-defined at TCDW ≈ 200 and 33 K, respectively. Angle-resolved photoelectron spectroscopy and electron diffraction are used to directly access the electronic and crystal structures of PtTe2 single crystals and yield state of the art measurements.
    由于其物理特性和在能量转换与储存方面的潜在应用,过渡属二属化物(TMDs)近年来引起了广泛关注。在这一类材料中,基于的TMDs因其半导体特性和自下而上合成技术的可获得性而特别具有吸引力。本文报告了一种方法,通过从属饱和属熔体中蒸发沉积,从其固溶体中得到高质量的过渡属二化物和二化物(PtTe2、PdTe2、NiTe2、TaTe2、TiTe2、RuTe2、PtSe2、PdSe2、NbSe2、TiSe2、VSe2、ReSe2)晶体。此外,我们还展示了利用上述工艺合成稀土属多属化物和NbS2晶体的方法。所获得的大多数晶体具有层状CdI2结构。我们研究了选定晶体的物理性质,并与文献中报道的最先进研究成果进行了比较。值得注意的是,在1T-TiSe2和2H- 晶体中,电荷密度波转变在TCDW分别约为200K和33K时很好地定义。角分辨光电子能谱和电子衍射被用于直接获取PtTe2单晶的电子和晶体结构,并提供了最先进的测量结果。
  • Thio- and seleno-ether complexes with Group 4 tetrahalides and tin tetrachloride: preparation and use in CVD for metal chalcogenide films
    作者:Stuart D. Reid、Andrew L. Hector、William Levason、Gillian Reid、Benjamin J. Waller、Michael Webster
    DOI:10.1039/b708809d
    日期:——
    perpendicular to the surface. The heavier Zr(IV) species do not lead to significant ZrE(2) deposition. On the other hand, LPCVD of [SnCl(4)o-C(6)H(4)(CH(2)SMe)(2)}] leads to deposition of SnS(2) at lower temperatures and SnS at higher temperatures, while [SnCl(4)o-C(6)H(4)(CH(2)SeMe)(2)}] gives rather uneven coatings of SnSe(2). The Et(2)Se derivative, [SnCl(4)(Et(2)Se)(2)] leads to uniform deposition
    TiCl(4)或ZrI(4)与柔软的中性oC(6)H(4)(CH(2)EMe)(2)(E = S或Se)在无CH(2)Cl(2)中的反应)(或甲苯)产生扭曲的八面体螯合物[MX(4)oC(6)H(4)(CH(2)EMe)(2)}]。使用Et(2)Se得到[MX(4)(Et(2)Se)(2)](M = Zr,X = Cl或I; M = Hf,X = I)。Sn(IV)类似物,[SnCl(4)oC(6)H(4)(CH(2)EMe)(2)}]和[SnCl(4)(Et(2)Se)(2)]获得类似。这些配合物已进行了光谱和分析的表征,并描述了反式-[SnCl(4)(Et(2)Se)(2)]和一些盐的晶体结构,这些盐是作为副产物从母体第4组配合物中衍生的。中性属醚配合物已被评估为通过LPCVD作为ME(2)/ ME薄膜的单源前体。[TiCl(4)oC(6)H(4)(CH(2)EMe)(2)
  • Quasimolecular complexes in the Cu<sub>x</sub>TiSe<sub>2−y</sub>S<sub>y</sub> intercalation compound
    作者:A. S. Shkvarin、A. I. Merentsov、A. A. Titov、Yu. M. Yarmoshenko、E. G. Shkvarina、I. Píš、S. Nappini、A. N. Titov
    DOI:10.1039/c8tc04115f
    日期:——
    transition metal dichalcogenides and displays a transition into the charge density wave (CDW) state upon cooling. The intercalation of copper into TiSe2 leads to a superconducting state transition. However, these electronic states are suppressed when both Cu and S are introduced into the TiSe2 crystal structure. The electronic structures of the copper intercalated CuxTiSe2−ySy (0 < y < 0.3) compounds have
    TiSe 2是层状过渡属二属化物的成员,冷却时显示出向电荷密度波(CDW)状态的过渡。插入TiSe 2中会导致超导状态转变。然而,当Cu和S都被引入到TiSe 2晶体结构中时,这些电子态被抑制。嵌入的Cu x TiSe 2- y S y(0 < y<0.3)的化合物已使用XPS,XAS和ResPES光谱技术和理论计算进行了研究。我们显示的证据表明,铜原子在层间空间中占据了硫配位的四面体位点。这伴随着涉及Ti 3d轨道和S 3d轨道的Cu-S化学键的形成。考虑到硫充当铜原子的陷阱并且不允许形成Cu–TiSe 2键,已经提出了由于硫取代而导致的Cu x TiSe 2- y S y中CDW和超导态的抑制机理。
  • The phase transition in the electronic structure of 1T-TiSe2
    作者:O. Anderson、G. Karschnick、R. Manzke、M. Skibowski
    DOI:10.1016/0038-1098(85)90981-0
    日期:1985.1
    Abstract The influence of the structural phase transition at Tc ⋍ 200 K on the electronic structure of 1T-TiSe2 is studied by means of high-resolution angle-resolved photoemission (ΔE = 70 meV; Δθ, Δπ = ±0.5°; ℏω = 21.2 eV) in the temperature regime 60 K ≦ T ≦ 300 K. At the Brillouin zone boundary at M(L) three peaks are found in the temperature dependent EDCs near EF whose intensity and binding energy
    摘要 通过高分辨率角分辨光电子发射(ΔE = 70 meV; Δθ, Δπ = ±0.5°; ℏω = 21.2)研究了Tc ⋍ 200 K处结构相变对1T-TiSe2电子结构的影响eV) 在 60 K ≤ T ≤ 300 K 的温度范围内。 在 M(L) 处的布里渊区边界处,在 EF 附近的温度相关 EDC 中发现三个峰,其强度和结合能连续变化,揭示了二阶型相电子性质的转变伴随着转变前的波动。在低温(T
  • Thermodynamic properties of titanium selenides with variable composition TiSe2-TiSe1.80
    作者:L. N. Zelenina、T. P. Chusova、A. N. Titov
    DOI:10.1007/s11172-011-0089-8
    日期:2011.3
    The thermodynamic investigation of the system TiSe2-TiSe1.80 was carried out by the static method of vapor pressure measurements using the quartz membrane-zero manometers in the temperature range from 713 to 1395 K. The analysis of the p Se-T-x dependences obtained showed that titanium diselenide formed a continuous solid solution. The enthalpies and entropies of dissociation processes of TiSe x were derived from the experimental data. The standard enthalpies of formation, the absolute entropies, and the free Gibbs energies of formation of selenides belonging to the homogeneity region of TiSe2 were estimated using literature data. The obtained set of thermodynamic characteristics may be used for the calculation of phase equilibria and for thermodynamic modeling in the system Ti-Se.
    利用石英膜零点压力计在 713 至 1395 K 温度范围内测量蒸气压力的静态方法,对 TiSe2-TiSe1.80 体系进行了热力学研究。根据实验数据得出了二硒化钛解离过程的焓和熵。利用文献数据估算了属于 TiSe2 均质区的化物形成的标准焓、绝对熵和自由吉布斯能。所获得的一组热力学特征可用于计算相平衡和建立 Ti-Se 系统的热力学模型。
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