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
-
, (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
A 2D Zinc Coordination Polymer Built from the Mono-deprotonated 4,4′-Azobis(3,5-dimethyl-1H-pyrazole) Ligand
Millan, Simon,Gil-Hernández, Beatriz,Hastürk, Emrah,Schmitz, Alexa,Janiak, Christoph
, p. 1311 - 1316 (2018/09/14)
4,4′-Azobis(3,5-dimethyl-1H-pyrazole) (H2azbpz) in its mono-deprotonated form as a pyrazole-pyrazolate ligand was assembled together with zinc(II) into the two-dimensional coordination polymer [Zn(Hazbpz)NO3]·1.25DMF with sql-a topology, constituted by the dinuclear {Zn2(μ-pz)2(Hpz)2}2+ secondary building unit. The μ3- bridging mode of the ligand is in analogy to bridging modes observed for 4-(4-pyridyl)pyrazolates ligands. After the removal of the DMF solvent molecules, ethanol can be adsorbed up to a maximum uptake of 276 mg·g–1 at p/p0 = 0.9 in an S-shaped adsorption isotherm, corresponding to two ethanol molecules per [Zn(Hazbpz)NO3] formula unit. The desorption isotherm reveals that only one EtOH is desorbed until p/p0 = 0.4 and the other one remains hydrogen-bonded in the framework until very low pressures.