disulfur-34S2 | 12185-13-6

• 英文名称: disulfur-34S2
• CAS: 12185-13-6
• 化学式: S₂
• 分子量: 68.0
• InChiKey: MAHNFPMIPQKPPI-XPULMUKRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.0
• 重原子数：
  2.0
• 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：
  2.0

反应信息

• 作为反应物：
  描述：

  lead 、 disulfur-34S2 以 neat (no solvent) 为溶剂， 生成 lead(II) sulfide
  参考文献：
  名称：

  Effect of isotope substitution and doping on the Raman spectrum of galena (PbS)

  摘要：

  The Raman spectrum of natural PbS has been shown to exhibit features related to the IR-active (Raman Forbidden) LO phonons and to allowed scattering by two phonons. In order to confirm the vibrational nature of these features, and their peculiar temperature dependence, we compare here the spectra obtained for natural samples (i.e. mineral as well as synthetic with the natural isotopic abundance) with those measured for crystals prepared front highly enriched S-34. The observed isotopic shifts confirm the vibrational nature of the structures mentioned above. We have also measured the spectra of synthetic samples of PbS annealed at several different pressures of sulphur. Because of their non-stoichiometric sulphur content they have carrier concentrations (either electrons or holes) in the 1 X 10(17)-3 X 10(18) carriers/cm(3) range (as determined from their IR reflection spectra). The measured Spectra, as well as their temperature dependence, do not depend oil the bulk carrier concentration, a fact that must result from surface pinning of the Fermi level within the fundamental energy gap.We finally discuss the apparent paradox of why the IR spectra reveal Coupled LO-phonon-plasmon modes whereas the Raman spectra exhibit the bare LO-phonons. (c) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.ssc.2005.02.026
• 作为产物：
  描述：

  硫化氢 生成 disulfur-34S2
  参考文献：
  名称：

  Red and near‐infrared laser‐induced emission of S₂ in an Ar matrix

  摘要：

  The S2 emission in the red and near-infrared regions has been reinvestigated using the laser-induced emission technique. Four progressions of S2 in solid Ar were observed in the emission spectra following excitation in the UV region with a pulsed Nd-YAG laser system. 34S-isotopic shifts allowed the determination of spectroscopic parameters for these progressions. Among them, ν00=19 757 and 15 417 cm−1 for the two progressions with distinct zero-phonon lines (ZPL); ν00=19 384 and 15 003 cm−1 for the other two with no ZPL, respectively. The progressions are assigned as the c 1Σ−u→X 3Σ−g and the c 1Σ−u →a 1Δg transitions of S2 in two matrix sites, respectively. The data yield the T0 values for the c 1Σ−u and the a 1Δg states. The relative intensities of these four progressions varied with excitation wavelengths and isotopic species.

  DOI：

  10.1063/1.455516