4402-38-4

Usage

Uses

Used in Polymer Synthesis:
2,2'-Bi-1,3,4-oxadiazole, 5,5'-bis(4-nitrophenyl)is used as a building block for the synthesis of functional polymers due to its ability to enhance the properties of the resulting polymers, such as thermal stability and mechanical strength.
Used in Dye Production:
2,2'-Bi-1,3,4-oxadiazole, 5,5'-bis(4-nitrophenyl)is used as a precursor in the production of dyes, where its unique structure contributes to the color and stability of the dyes.
Used in Energetic Materials:
2,2'-Bi-1,3,4-oxadiazole, 5,5'-bis(4-nitrophenyl)is used as a component in the development of energetic materials, such as propellants and explosives, due to its high-energy density and reactivity.
Used in High-Energy Density Materials:
2,2'-Bi-1,3,4-oxadiazole, 5,5'-bis(4-nitrophenyl)is utilized in the research and development of high-energy density materials for applications in energy storage and conversion systems, taking advantage of its high energy content and potential for energy release.

Upstream product

• 636-97-5 N-amino-(4-nitrophenyl)carboxamide 
• 4402-37-3 C₁₆H₁₂N₆O₈ 

Downstream Products

• 4416-82-4 4,4'-[2,2']bi[1,3,4]oxadiazolyl-5,5'-diyl-bis-aniline 

Relevant academic research and scientific papers

Substituent effect on photophysical properties of bi-1,3,4-oxadiazole derivatives in solution

A series of phenyl substituted bi-1,3,4-oxadiazole derivatives were designed and synthesized; the effect of substituent on the photophysical properties and molecular electronic structures was fully studied by the combination of experimental techniques and theoretical calculations. Compared to parent compound without any substituent (BOXD), fluoro-substituent shows little effect on the absorption and emission spectra, whilst a little larger spectral red-shift could be observed for methoxy-, nitro-substituted derivatives and thienyl-substituted bi-1,3,4-oxadiazole (TBOXD). These spectral changes can be well explained by theoretically calculated HOMO and LUMO energy level changes. All these molecules show high fluorescence quantum yield except for nitro-substituted derivative in dilute solutions. The quantum yield of BOXD changes with the concentration and exhibits a high value at the concentrated solution. This work revealed the influence of substituent on the photophysical properties of bi-1,3,4-oxadizaole derivatives in dilute solutions and provided guidance for designing molecules with potential application.

1H and 13C NMR Spectroscopy of Substituted Bis-1,3,4-oxadiazoles

Dehydration of N,N'-diacylalkanedioic acid dihydrazides with phosphoryl chloride gave 5,5'-disubstituted-2,2'-(1,n-alkanediyl)bis-1,3,4-oxadiazoles.The structures of these compounds were elucidated by 1H, 13C NMR, UV and IR spectroscopy.KEY WORDS: Bis-1,3,4-oxadiazoles; 1H NMR; 13C NMR