gold trimer | 514789-93-6

• 分子结构分类: 无机化合物 - 均相金属化合物 - 均相过渡金属化合物
• 英文名称: gold trimer
• 英文别名: gold
• CAS: 514789-93-6；909565-58-8
• 化学式: Au₃
• 分子量: 590.899
• InChiKey: QWYBGPXCNWEGHC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.01
• 重原子数：
  3
• 可旋转键数：
  0
• 环数：
  0.0
• 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

• 作为产物：
  描述：

  chloroauric acid 在 sodium docusate 、 肼 作用下， 以 苯 为溶剂， 生成 gold trimer
  参考文献：
  名称：

  1,4-双(2-乙基己基)磺基琥珀酸钠反胶束在改变外部溶剂组成时的液滴-液滴相互作用及其对金纳米颗粒合成的影响研究

  摘要：

  研究了非极性有机介质的组成对固定温度下 1,4-双(2-乙基己基) 磺基琥珀酸钠 (AOT) 反胶束 (RM) 性质的影响。为了监测正庚烷：苯/AOT/水 RMs 中的界面微极性和隔离水结构，研究了香豆素 343（C343）作为吸收和发射探针的溶剂致变色行为，并通过动态光散射测量液滴的大小(DLS)。DLS 结果证实了在研究的每个正庚烷摩尔分数下都形成了正庚烷：苯/AOT/水 RM。数据显示，随着正庚烷含量的增加，液滴间的吸引力相互作用和液滴尺寸都增加。使用 C343 光谱，我们确定了“操作”临界胶束浓度，RM 的界面微极性、介质的氢键能力以及研究的每个 RM 系统中的隔离水结构。为了验证外部溶剂对液滴间相互作用的调节，我们使用了一种众所周知的合成方法在不同的 RM 介质中制造金纳米粒子。结果支持以下结论：正庚烷作为非极性溶剂有利于液滴-液滴相互作用。因此，胶束之间的物质交换速率增加，并形

  DOI：

  10.1002/ejic.201301612

文献信息

• E.s.r. spectrum of matrix isolated Au3
  作者：James A. Howard、Roger Sutcliffe、Brynmor Mile

  DOI：10.1039/c39830001449

  日期：——

  The neutral gold cluster, Au3, has been trapped in a benzene matrix at 77 K and its e.s.r. spectrum observed: it consists of sixteen sets of quartets with a197(2)= 382.9 G (3.83 × 10–2 T), a197(1)= 58.0 G (5.8 × 10–3 T), and g= 1.865; these parameters suggest a slightly bent structure with 2B2(C2v) ground state.

  中性金簇，金3，已在77K被困在苯矩阵及其ESR谱中观察到：它由16套四重奏与一个197（2）= 382.9 G（3.83×10 -2 T），一个197（1）= 58.0 G（5.8×10 –3 T），g = 1.865；这些参数表明基态为2 B 2（C 2 v）的轻微弯曲结构。
• Thermally-Induced Formation of Atomic Au Clusters and Conversion into Nanocubes
  作者：Rongchao Jin、Shunji Egusa、Norbert F. Scherer

  DOI：10.1021/ja0482482

  日期：2004.8.1

  A thermal method for converting Au colloids into atomic Au clusters and subsequent growth of Au nanocubes from clusters is reported. Mass spectral analysis shows that these clusters are Au trimers. The Au clusters show distinct optical absorption at 305 and 250 nm and have extraordinary stability under ambient conditions.
• Resonant two‐photon ionization spectroscopy of jet‐cooled Au₃
  作者：Gregory A. Bishea、Michael D. Morse

  DOI：10.1063/1.461213

  日期：1991.12.15

  A band system of jet-cooled Au3 has been located in the near infrared region of the spectrum using resonant two-photon ionization spectroscopy. The origin band is located at 13 354.15 cm−1 and the system extends more than 700 cm−1 further to the blue. The excited state displays a radiative lifetime of approximately 28 μs, corresponding to an absorption oscillator strength of f≊0.0003. Accordingly, it is thought that the transition corresponds to a spin-forbidden doublet (S=1/2) to quartet (S=3/2) transition, which is made allowed by spin–orbit contamination, presumably in the upper state. A progression in a totally symmetric stretching vibration (ω=179.7 cm−1 ) is obvious in the spectrum, along with a much weaker progression in another mode, which displays an interesting pattern of splittings. Although no assignment is absolutely unambiguous, various candidates are presented. The most likely of these assigns the system as an Ã 4E′←X̃ 2E′ transition in the D3h point group, with both the ground X̃ 2E′ and excited Ã 4E′ states undergoing Jahn–Teller distortion. The vibronic levels of the Ã 4E′ state have been fitted assuming a linear Jahn–Teller effect in a system with both spin–orbit splitting and a significant anharmonicity in the Jahn–Teller active e′ vibrational mode. The combined effects of anharmonicity in the Jahn–Teller active mode and spin–orbit coupling appear not to have been previously investigated; they are therefore examined in some detail.