2,2'-Bipiperazine | 77771-14-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二嗪烷类
• 英文名称: 2,2'-Bipiperazine
• 英文别名: 2-piperazin-2-ylpiperazine
• CAS: 77771-14-3
• 化学式: C₈H₁₈N₄
• 分子量: 170.26
• InChiKey: AGUZDVQPUZKYPV-UHFFFAOYSA-N

物化性质

• 沸点：
  346.0±10.0 °C(Predicted)
• 密度：
  0.997±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  -1.8
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  48.1
• 氢给体数：
  4
• 氢受体数：
  4

文献信息

• Refractive index distribution type light transmitting device
  申请人：Koike, Yasuhiro

  公开号：EP1072905A1

  公开（公告）日：2001-01-31

  A refractive index distribution type light transmitting device comprising a non-crystalline polymer (a) and a metal chelate compound (b) having a difference in refractive index of at least 0.001 as compared with the non-crystalline polymer (a) and having a molecular weight of at least 400, wherein the metal chelate compound (b) is distributed in the non-crystalline polymer (a) with a concentration gradient in a specific direction.

  一种折射率分布式透光装置，包括非结晶聚合物（a）和金属螯合物（b），金属螯合物（b）的折射率与非结晶聚合物（a）相比至少相差 0.001，分子量至少为 400，其中金属螯合物（b）以特定方向的浓度梯度分布在非结晶聚合物（a）中。
• Optical gain media and methods for making and using same
  申请人：——

  公开号：US20030099424A1

  公开（公告）日：2003-05-29

  Optical gain media and methods for making and using them are provided. An exemplary composition includes at least one suitable metal, at least one first ligand and at least one second ligand. These compositions can be used to make optical elements, components, and subsystems, including, for example, waveguides (e.g., optical fibers and films), optical amplifiers, lasers, compensated optical splitters, multiplexers, isolators, interleavers, demultiplexers, filters, photodetectors, and switches.

  本文提供了光学增益介质及其制造和使用方法。一种示例性组合物包括至少一种合适的金属、至少一种第一配体和至少一种第二配体。这些组合物可用于制造光学元件、组件和子系统，例如包括波导（如光纤和薄膜）、光放大器、激光器、补偿光分路器、多路复用器、隔离器、交织器、解复用器、滤波器、光电探测器和开关。
• VERFAHREN ZUR ENTFERNUNG SAURER GASBESTANDTEILE AUS GASEN
  申请人：BASF AKTIENGESELLSCHAFT

  公开号：EP1091796A1

  公开（公告）日：2001-04-18
• Polyamine/Alkali Salt Blends for Carbon Dioxide Removal From Gas Streams
  申请人：Rochelle Gary T.

  公开号：US20120043501A1

  公开（公告）日：2012-02-23

  Novel solvents and methods of use for the removal of CO 2 from flue gas, natural gas, hydrogen gas, synthesis gas, and other process and waste gas streams are provided. The solvent contains an alkali salt such as potassium carbonate and a polyamine such as piperazine (PZ) where the polyamine concentration is at least 1.5 equivalents/Kg H 2 O and the alkali salt concentration is at least 0.5 equivalents/Kg H 2 O. The preferred alkali salt/polyamine ratio is from approximately 1:2 to 2:1, and no additional alcohol is required for solubilizing the PZ. This chemical solvent and method of use provides efficient and effective removal of CO 2 from gaseous streams and other sources.
• US6436174B1
  申请人：——

  公开号：US6436174B1

  公开（公告）日：2002-08-20