1,2-S6Se2 | 75926-26-0

• 分子结构分类: 无机化合物 - 均质非金属化合物 - 其他非金属有机物
• 英文名称: 1,2-S6Se2
• 英文别名: 1,2-(selenium)2(sulfur)6；1,2-Se2S6；Selenium sulfide (Se2S6)；hexathiadiselenocane
• CAS: 75926-26-0
• 化学式: S₆Se₂
• 分子量: 350.316
• InChiKey: GVMSZJKNEHYJTG-UHFFFAOYSA-N

物化性质

• 溶解度：
  溶于CS2；微溶于苯

计算性质

• 辛醇/水分配系数(LogP)：
  3.13
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  152
• 氢给体数：
  0
• 氢受体数：
  6

制备方法与用途

六硫化二硒是一种八员环状硫化硒SeₙS₈-n分子，由于硒原子在环中所处的位置不同，存在几种不同的结构。通过化学方法获得的六硫化二硒晶体实际上是多种分子形成的固溶体。

制备六硫化二硒的方法是：将纯净的硫和硒按原子比Se∶S=2∶6混合后装入石英安瓿中并抽真空烧封。随后在430℃加热4小时，冷却后用CS₂萃取反应混合物，所得溶液蒸发至干可得到橙黄色结晶，其中主要成分是Se₂S₆，还含有少量的SeS₇及Se₃S₅和硒含量更高的分子。通过在CS₂中进行分步结晶可以提高六硫化二硒的纯度。

反应信息

• 作为反应物：
  描述：

  1,2-S6Se2 以 二硫化碳 为溶剂， 生成 1,3-(selenium)2(sulfur)6
  参考文献：
  名称：

  Chalcogenospecific Synthesis of 1,2-Se2S6 Using ZnS6(TMEDA)

  摘要：

  The recently reported hexasulfido complex ZnS6(TMEDA) is a potent polysulfide transfer agent as demonstrated by its ability to convert (C5H5)(2)TiCl2 into (C5H5)(2)-TiS5. More interesting is the use of the zinc complex to transfer an intact. S-6 Unit as established with the ''chalcogenospecific'' synthesis of 1,2-Se2S6. 1,2-Se2S6 is a rare example of easily prepared stable sulfur selenide available in isomeric purity.

  DOI：

  10.1021/ic00128a035
• 作为产物：
  描述：

  (TMEDA)Zn(S6) 、 二氯化二硒 以 二硫化碳 为溶剂， 以62%的产率得到1,2-S6Se2
  参考文献：
  名称：

  Chalcogenospecific Synthesis of 1,2-Se2S6 Using ZnS6(TMEDA)

  摘要：

  The recently reported hexasulfido complex ZnS6(TMEDA) is a potent polysulfide transfer agent as demonstrated by its ability to convert (C5H5)(2)TiCl2 into (C5H5)(2)-TiS5. More interesting is the use of the zinc complex to transfer an intact. S-6 Unit as established with the ''chalcogenospecific'' synthesis of 1,2-Se2S6. 1,2-Se2S6 is a rare example of easily prepared stable sulfur selenide available in isomeric purity.

  DOI：

  10.1021/ic00128a035

文献信息

• Maaninen, Arto; Chivers, Tristram; Parvez, Masood, Inorganic Chemistry, 1999, vol. 38, # 18, p. 4093 - 4097
  作者：Maaninen, Arto、Chivers, Tristram、Parvez, Masood、Pietikaeinen, Jarkko、Laitinen, Risto S.

  DOI：——

  日期：——
• Steudel, Ralf; Pridoehl, Markus; Hartl, Hans, Zeitschrift fur Anorganische und Allgemeine Chemie
  作者：Steudel, Ralf、Pridoehl, Markus、Hartl, Hans、Bruedgam, Irene

  DOI：——

  日期：——
• Raman, mass, and 77se nmr spectra of sescl2 and its reactions with potassium iodide and titanocene pentasulphide to produce cyclic selenium sulphides
  作者：Ralf Steudel、Bettina Plinke、Detlef Jensen、Frank Baumgart

  DOI：10.1016/s0277-5387(00)81367-4

  日期：1991.1

  Mixing of S2Cl2 and Se2Cl2 at 21-degrees-C results in the formation of SeSCl2 as shown by Se-77 NMR, mass, and Raman spectroscopy. The enthalpy of this reaction has been determined as + 13 kJ mol-1 (S2Cl2), and the equilibrium constant K(c) = 0.066 at 294 K. In addition, the formation of other Se - S - Cl molecules and of SeCl2 is observed. An Se2Cl2-S2Cl2-SeSCl2 mixture (Se:S = 1:1) reacts with titanocene pentasulphide to give mainly S7, SeS6 and 1,2-Se2S5 but small concentrations of six-, eight-, nine- and 12-membered Se - S ring molecules have also been observed. The reaction of Se2Cl2-S2Cl2 mixtures (Se: S = 1:2) with potassium iodide affords 1,2,5-Se3S5 as the major product followed by 1,2-Se2S6, 1,4-Se2S6 and 1,3-Se2S6. HPLC analysis of this reaction shows, however, that selenium sulphide ring molecules of ring sizes 6-8 are formed. Mixing of SCl2 and Se2Cl2 at 21-degrees-C results in precipitation of SeCl4 and formation of S2Cl2, which reacts with Se2Cl2 to give SeSCl2.
• 77Se-NMR and raman spectroscopic characterization of selenium dibromide (SeBr2) and its reaction with titanocene pentasulphide to give cyclic selenium sulphides of ring size 6, 7, 8, and 12
  作者：Ralf Steudel、Detlef Jensen、Frank Baumgart

  DOI：10.1016/s0277-5387(00)86896-5

  日期：1990.1
• Steudel, Ralf; Strauss, Eva-Maria, Zeitschrift fur Naturforschung, Teil B: Anorganische Chemie, Organische Chemie, 1983, vol. 38, # 6, p. 719 - 725
  作者：Steudel, Ralf、Strauss, Eva-Maria

  DOI：——

  日期：——