europium tris-diethyldithiocarbamate bipyridine | 172044-48-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: europium tris-diethyldithiocarbamate bipyridine
• 英文别名: Eu(N,N-diethyldithiocarbamate)3(2,2'-bipyridyl)；Eu(Et2dtc)3(bipy)；[Eu(2,2'-bipyridine)(Et2NCSS)3]；[Eu(bipy)(Ddtc)3]；[Eu(2,2'-bipyridine)(N,N-diethyldithiocarbamate)3]；[Eu(bipy)(Et2dtc)3]；N,N-diethylcarbamodithioate;europium(3+);2-pyridin-2-ylpyridine
• CAS: 172044-48-3
• 化学式: C₂₅H₃₈EuN₅S₆
• 分子量: 752.966
• InChiKey: WJDMZCRMAUVGRB-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  europium tris-diethyldithiocarbamate bipyridine 在 hydrogen 作用下， 以 neat (no solvent) 为溶剂， 生成 europium oxysulfide
  参考文献：
  名称：

  一种新的连续两步分子前体路线制备稀土氧硫化物Ln 2 O 2 S

  摘要：

  设计了一个连续的两步式分子前体途径，用于制备稀土氧硫化物Ln 2 O 2 S（Ln = Y，La，Pr，Nd，Sm-Lu）。该新路线涉及第一步氧化步骤，该氧化步骤导致了稀土氧硫酸盐Ln 2 O 2 SO 4，随后通过切换至H 2 -Ar气氛而还原为稀土氧硫化物Ln 2 O 2 S。整个过程的温度大大低于通常的固态合成（T≤650°C），避免使用危险的硫基气体，为合成整个Ln 2 O 2 S系列提供了便捷的途径。分子前体由杂二硫代氨基甲酸酯复合物组成[ Ln（Et 2 dtc）3（phen）]和[ Ln（Et 2 dtc）3（bipy）]（Et 2 dtc = N，N-二乙基二硫代氨基甲酸酯; phen = 1,10-菲咯啉; bipy = 2,2'-联吡啶）并通过a新的高产高纯度合成路线。分子前体的性质决定了最低合成温度，因此影响了最终Ln 2 O的纯度2 S结晶相。

  DOI：

  10.1016/j.jssc.2012.03.017
• 作为产物：
  描述：

  2,2'-联吡啶 、 europium(III) perchlorate hydrate 、 二乙基二硫代氨基甲酸二乙铵盐 以 乙腈 为溶剂， 以80%的产率得到europium tris-diethyldithiocarbamate bipyridine
  参考文献：
  名称：

  N，N-二乙基二硫代氨基甲酸酯和2,2'-联吡啶的镧系元素配合物的合成，性质和结构

  摘要：

  摘要十四个通式为[M（Et 2 Dtc）3（bipy）]的新三元配合物（M = La，Pr，Nd，Sm-Lu，Y; Et 2 Dtc = N，N-二乙基二硫代氨基甲酸酯; bipy = 2，已经制备了2'-联吡啶基，并通过化学分析，红外光谱，电子光谱和电导率测量对其进行了表征。[Er（Et 2 Dtc）3（bipy）]的晶体和分子结构已通过单晶X射线衍射技术确定。中心的Er III原子是八配位的，并且具有扭曲的十二面体几何形状，与三个Et 2 Dtc配体的六个硫原子和联比配体的两个氮原子配位。

  DOI：

  10.1016/0277-5387(95)00247-p

文献信息

• Solid-State and Nanoparticle Synthesis of EuS_<i>x</i>Se_1–<i>x</i> Solid Solutions
  作者：Haydee A. Dalafu、Nicholas Rosa、Derak James、Dane Romar C. Asuigui、Michael McNamara、Akira Kawashima、Shun Omagari、Takayuki Nakanishi、Yasuchika Hasegawa、Sarah L. Stoll

  DOI：10.1021/acs.chemmater.8b00393

  日期：2018.5.8

  of the nanoparticles appear to parallel those in the solid-state. Although the composition is an effective tool to tune to the optical band gap in the solid-state alloys with a linear change in Eg with composition, the nanoparticle optical band gaps appeared to be shifted, which we attribute to the presence of an amorphous selenium phase. The study of the properties of colloidal alloys highlights the

  cha硫属元素合金，EuS x Se 1– x，已经以固态和胶体纳米颗粒的形式合成；已经对组成，结构，磁性和光学带隙进行了表征。目的是观察硒的浓度对电子结构的影响，如光学和磁学性质所证明的，以及纳米材料中是否保留了这些性质。固态和纳米粒子合金均遵循Vegard定律，并通过粉末X射线衍射证实了细胞常数的系统性变化。块状材料形成均质合金，该均质合金显示出磁性和光学性质随组成变化的线性变化。已经开发了一种制备具有宽S：Se比范围的纳米合金的合成方法。纳米合金是均质的 单个纳米颗粒的EDS和EDS谱图表明，整个纳米晶体中的S和Se组成相对均匀。纳米粒子的磁性能似乎与固态的磁性能平行。尽管该成分是调整固态合金中光学带隙并使其线性变化的有效工具。È克用组合物，所述纳米颗粒的光学带隙似乎被移位，我们归因于无定形硒相的存在。对胶体合金性能的研究突显了纳米颗粒形成机理对控制组成和纯度的重要性。
• Photoluminescence of Europium(III) Dithiocarbamate Complexes:  Electronic Structure, Charge Transfer and Energy Transfer
  作者：Wagner M. Faustino、Oscar L. Malta、Ercules E. S. Teotonio、Hermi F. Brito、Alfredo M. Simas、Gilberto F. de Sá

  DOI：10.1021/jp056180m

  日期：2006.2.1

  For the first time, we observed photoluminescence in Eu(III) dithiocarbamate complexes at room temperature-more specifically in [Eu(Et2NCS2)(3)phen], [Eu(Et2NCS2)(3)bpy] and the novel [Eu(Ph2NCS2)(3)phen], where phen stands for 1,10-phenanthroline and bpy for 2,2'-bipyridine. Correlations between the electronic structure of the dithiocarbamate ligands on one hand, and covalency, intensity, and ligand field spectroscopic parameters on the other, could be established. Moreover, the relative values of the emission quantum efficiencies obtained for these complexes, as well as their dependence with temperature, could be satisfactorily described by a theoretical methodology recently developed.
• Synthesis and Magnetic Properties of Gd Doped EuS Nanocrystals with Enhanced Curie Temperatures
  作者：Rachel S. Selinsky、Jae Hyo Han、Elvin A. Morales Pérez、Ilia A. Guzei、Song Jin

  DOI：10.1021/ja104314c

  日期：2010.11.17

  EuS nanocrystals (NCs) were doped with Gd resulting in an enhancement of their magnetic properties. New EuS and GdS single source precursors (SSPs) were synthesized, characterized, and employed to synthesize Eu1-xGdxS NCs by decomposition in oleylamine and trioctylphosphine at 290 degrees C. The doped NCs were characterized using X-ray diffraction, transmission electron microscopy, and scanning transmission electron microscopy, which support the uniform distribution of Gd dopants through electron energy loss spectroscopy (EELS) mapping. X-ray absorption spectroscopy (XAS) revealed the dopant ions in Eu1-xGdxS NCs to be predominantly Gd3+. NCs with a variety of doping ratios of Gd (0 <= x < 1) were systematically studied using vibrating sample magnetometry and the observed magnetic properties were correlated with the Gd doping levels (x) as quantified with ICP-AES. Enhancement of the Curie temperature (T-C) was observed for samples with low Gd concentrations (x <= 10%) with a maximum T-C of 29.4 K observed for NCs containing 5.3% Gd. Overall, the observed T-C, Weiss temperature (theta), and hysteretic behavior correspond directly to the doping level in Eu1-xGdxS NCs and the trends qualitatively follow those previously reported for bulk and thin film samples.
• Systematic Behavior of Charge-Transfer Transitions and Energy Level Variation in Soft Donor Complexes of the Trivalent Lanthanides
  作者：G. K. Liu、M. P. Jensen、P. M. Almond

  DOI：10.1021/jp0558674

  日期：2006.2.1

  The systematic behavior of the charge-transfer (CT) energies in mixed 2,2'-bipyridyl (bipy), N,N-diethyldithiocarbamate (Et(2)dtc(-)) complexes of the trivalent lanthanides, Ln(Et(2)dtc)(3)(bipy), is investigated to understand the electronic structure of f-element complexes containing soft donor ligands. The energies of ligand to Ln(3+) CT are extremely low in this system, an effect attributed to the presence of the soft donor ligands. The lowest CT energy level for the Sm3+, Eu3+, and Yb3+ complexes falls into the visible range. In Eu(Et(2)dtc)(bipy), the Eu3+ ion becomes nonluminescent because the CT energy stretches below the metastable D-5(0) electronic state, whereas luminescence from the CT state and the 4f(13) F-2(5/2) state are observed in the Yb compound. The variation in the energy of the lowest level CT transition for the entire Ln(Et(2)dtc)(3)(bipy) series has been evaluated using the experimentally determined CT levels of the Sm3+, Eu3+, and Yb3+ compounds based on the systematic behavior of the lanthanides, which is invariant with respect to the type of ligand. The energy difference between the ground electronic states of the lanthanide ions and the ligand-centered valence band may also be calculated from these results.