5,5′-Bis-(trinitromethyl)-3,3′-bi-(1,2,4-oxadiazole): a stable ternary CNO-compound with high density

M A Kettner,T M Klapötke

doi:10.1039/c3cc49879d

Abstract

5,5'-Bis-(trinitromethyl)-3,3'-bi-(1,2,4-oxadiazole) is a new ternary CNO-compound. It has been synthesized by nitration of diammonium 5,5'-bis-(dinitromethanide)-3,3'-bi-(1,2,4-oxadiazole) with nitronium tetrafluoroborate. Single crystal X-ray diffraction studies show a remarkable high density. Thermal stability and sensitivities of the new compound were determined by differential scanning calorimetry (DSC) and standardized drop hammer and friction tests.

Highlights

5,50-Bis-(trinitromethyl)-3,30-bi-(1,2,4-oxadiazole) is a new ternary CNO-compound. It has been synthesized by nitration of diammonium 5,50-bis-(dinitromethanide)-3,30-bi-(1,2,4-oxadiazole) with nitronium tetrafluoroborate
Thermal stability and sensitivities of the new compound were determined by differential scanning calorimetry (DSC) and standardized drop hammer and friction tests
The challenges in the development of the field of energetic materials include – besides better environmental acceptance – the search for materials with preferably high densities, which result in higher performance values.[1]

Summary

Introduction

Single crystal X-ray diffraction studies show a remarkable high density. 5,50-Bis-(trinitromethyl)-3,30-bi-(1,2,4oxadiazole) 2 (TNM2-BOD) is analogous to 5,50-bis-(trinitromethyl)3,30-bi-(1,2,4-triazole) synthesized by Petrie et al in 2012 (Scheme 1),[6] just by replacing the NH-group by an oxygen atom (Scheme 1).

Results

Conclusion