gold(I) octadecane-1-thiolate | 93549-22-5

• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 英文名称: gold(I) octadecane-1-thiolate
• CAS: 93549-22-5
• 化学式: C₁₈H₃₇AuS
• 分子量: 482.524
• InChiKey: LMBSLKNCKUTRSL-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  6.79
• 重原子数：
  20.0
• 可旋转键数：
  16.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  gold(I) octadecane-1-thiolate 以 四氢呋喃 为溶剂， 生成 金
  参考文献：
  名称：

  Synthesis of Gold Nanoparticles from Gold(I)−Alkanethiolate Complexes with Supramolecular Structures through Electron Beam Irradiation in TEM

  摘要：

  Monodisperse gold nanoparticles were prepared via electron beam irradiation of Au(I)-SR (R = -CnH2n+1) polymers with highly ordered supramolecular structures in transmission electron microscopy. The Au(I)-SR polymers were synthesized simply by mixing LiAuCl4 and an excess amount of alkanethiol in tetrahydrofuran. The sizes of the gold nanoparticles were controlled by changing the length of the alkyl group or by adjusting the energy of the electron beam.

  DOI：

  10.1021/ja042423x
• 作为产物：
  描述：

  chloroauric acid 、 十八硫醇 在 NaBH₄ 、 tetraoctylammonium bromide 作用下， 以 水 、 甲苯 为溶剂， 以50%的产率得到gold(I) octadecane-1-thiolate
  参考文献：
  名称：

  Properties of a Ubiquitous 29 kDa Au:SR Cluster Compound

  摘要：

  The broad, intense peak found near 29 kDa in the laser-desorption mass-spectral abundances of various aurothiol (Au:SR) cluster compounds has been used to optimize the preferential formation of the species in that mass range. Recrystallization gives enriched fractions, on the 10 mg scale, that in several cases appear free of species outside that mass range. Elemental analysis and X-ray photoelectron spectra (XPS) confirm the absence of elements other than Au, S, C, and H, while infrared and NMR (H-1,C-13) spectra are consistent with intact thio groups. The Au 4f(7/2) XPS peak is only slightly shifted (similar to0.2 eV) and broadened from that of bulk Au(0) metal, and intense optical absorption extends far into the infrared region (0.5 eV), consistent with a metallic Au core. Recrystallized samples of the R = C4, C6, and C12 materials readily form highly diffractive crystalline films, powders, and single crystals on the scale of 10 mum, consistent with perfect ordering in > 100 nm grains, and a negligible amorphous content. Uniformity is quantified through several independent measures: (1) the mass spectrometrically determined core mass of 29.2 +/- 2 kDa is invariant to that of the thiol used, indicating an equivalent Art core diameter of 1.68 +/- 0.05 nm, assuming bulk density. (2) The powder X-ray diffraction intensities are sensitively fit to a Au core of 1.64 +/- 0.03 nm equivalent diameter. (3) The powder patterns index unambiguously to bcc packing, with nearest-neighbor distances of 2.68 +/- 0.02 nm (R = C6) and 3.15 +/- 0.02 nm (R = C12). An fcc packing structure with 2.56 +/- 0.04 nm distance (11.9 nm(3) volume) is found for R = C4. A formulation consistent with this mass spectral, diffraction, and average compositional information is Au144-146(SR)(50-60), with the structure of the inorganic core being influenced by the type of adsorbate used to produce the entire inorganic/organic assembly.

  DOI：

  10.1021/jp011122w