silver | 64475-48-5

• 分子结构分类: 无机化合物 - 均质非金属化合物
• 英文名称: silver
• CAS: 64475-48-5
• 化学式: Ag₇
• 分子量: 755.077
• InChiKey: VOIKNCCWEXEFLB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.02
• 重原子数：
  7
• 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：

  银 以 solid matrix 为溶剂， 生成 silver
  参考文献：
  名称：

  Ag₇ cluster: Pentagonal bipyramid

  摘要：

  The Ag7 metal cluster was formed in a solid neon matrix at 4 K. The identity of the cluster was established via X-band electron-spin-resonance (ESR) spectroscopy, and its structure was found to be a pentagonal bipyramid (D5h symmetry) with a 2A″2 ground state. Thus its properties are completely analogous to its Group IA alkali-metal counterparts.

  DOI：

  10.1063/1.453241

文献信息

• Tricapped tetrahedral Ag7: A structural determination by resonance Raman spectroscopy and density functional theory
  作者：K. A. Bosnick、T. L. Haslett、S. Fedrigo、M. Moskovits、W-T. Chan、R. Fournier

  DOI：10.1063/1.480232

  日期：1999.11.15

  The resonance Raman spectrum of Ag7, mass selected out of a cation beam of sputtered silver, neutralized, and codeposited with solid Ar, is presented. By comparing the observed spectrum with one calculated using density functional theory one concludes the structure of the silver septamer to be a tricapped tetrahedron. A partial resonance Raman spectrum of Ag9 is also included. Both spectra are dominated by totally symmetric “breathing” modes at ∼165 cm−1 (as is also true for Ag5 [T. L. Haslett et al., J. Chem. Phys. 108, 3453 (1998)]). This frequency is close to the Debye frequency (156 cm−1) of solid silver, implying that the nature of the chemical bond in these silver clusters already approximates closely that which exists in bulk silver.