5272-86-6Relevant articles and documents
Octanitropyrazolopyrazole: A gem-trinitromethyl based green high-density energetic oxidizer
Mohammad, Khaja,Thaltiri, Vikranth,Kommu, Nagarjuna,Vargeese, Anuj A.
supporting information, p. 12945 - 12948 (2020/11/07)
Environmental concerns demand the replacement of ammonium perchlorate (AP) by a green oxidizer in composite propellants. Herein, we report the synthesis and characterization of a novel green high-density energetic oxidizer octanitropyrazolopyrazole (ONPP). With its high specific impulse (256 s), high density (1.997 g cm-3) and good thermal stability (160 °C), ONPP can potentially replace AP. This journal is
Pyrazolyl-Imidazolium Ligands, Metal Organic Frameworks Comprising the Same and Method of Preparing the Same
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Paragraph 0073-0077, (2018/05/03)
According to the present invention, a metal organic framework comprising a pyrazolyl-imidazolium ligand can be produced by synthesizing a ligand including an imidazolium group as a center and a pyrazole group bonded to either or both of the centers, and using the ligand to produce the metal organic framework comprising a pyrazolyl-imidazolium ligand. The pyrazolyl-imidazolium ligand is chemically or thermally stable and is useful for fuel cell or gas separation.COPYRIGHT KIPO 2018
An antiferromagnetic metalloring pyrazolate (Pz) framework with [Cu12(μ2-OH)12(Pz)12] nodes for separation of C2H2/CH4 mixture
Li, Ziyin,Ye, Yingxiang,Yao, Zizhu,Guo, Junzhi,Lin, Quanjie,Zhang, Jindan,Zhang, Zhangjing,Wei, Fangfang,Xiang, Shengchang
, p. 19681 - 19688 (2018/10/24)
The search for functional metalloring organic frameworks (MROFs) has been of continuous interest in the fields of both molecular rings and metal-organic frameworks (MOFs) due to their importance in many multifunctional applications. Herein, a hierarchical pyrazolate framework MROF-12 with the topology of the Schl?fli symbol {460.66} is reported, which is constructed by an elongated rigid ligand and attractive metalloring cluster nodes [Cu12(μ2-OH)12(Pz)12]. MROF-12 not only adopts the unique functionalities of the metalloring clusters but also inherits the porous properties of MOFs. The large [Cu12(μ2-OH)12(Pz)12] metalloring nodes with the diameter of 12.202 ? endow MROF-12 with excellent stability and antiferromagnetism, and they are bridged by linear pyrazolate ligands (H2NDI) to form micro-mesoporous MROF with permanent porosity. The activated sample MROF-12a can exhibit a relatively high Brunauer-Emmett-Teller/Langmuir surface area (460.7/571.9 m2 g-1) as well as pore volume of 0.240 cm3 g-1. Dynamic fixed bed breakthrough experiments indicate that the separation of C2H2/CH4 or CO2/CH4 mixtures can be efficiently achieved through a column packed with MROF-12a solid.