Pengcheng Wang

TL;DR: Five metal pentazolate hydrate complexes are synthesized and characterized that exhibit good thermal stability with onset decomposition temperatures greater than 100 °C and the N5− ion can coordinate to the metal cation through either ionic or covalent interactions, and is stabilized through hydrogen-bonding interactions with water.

TL;DR: A detailed introduction to cyclo-N5- is provided and recent studies are summarized to improve the understanding of polynitrogen chemistry while supporting further research into its potential application as an efficient, safe, and environmentally friendly HEDM.

Abstract: A metal organic framework encapsulated gold nanoparticles noted as Au/UiO-66 were developed through double solvents method. Highly dispersed Au nanoparticles were presented within the pores of metal-organic framework (MOF) UiO-66 without deposition of the nanoparticles on the external surface or aggregation. With benzyl alcohol as substrate, Au/UiO-66 exhibited excellent catalytic performance to afford benzaldehyde as the only product. The reactions which could be carried out under solvent-free conditions offered a green process with O2 of atmospheric pressure as oxidant. Water was proved to be beneficial for the reaction and the hydrophilic character of the MOF inner face facilitated its promotion effect greatly. The catalyst showed great stability and could be reused for at least eight times without obvious aggregation or leaching.

TL;DR: In this paper, the authors investigated cyclo-N5− in detail as a potential all-nitrogen, room-temperature stable anion for the rapid and efficient synthesis of energetic ionic derivatives for use as environmentally benign explosives.

TL;DR: It is revealed that although water plays an important role in stabilizing cyclo-N5-, dehydration does not cause immediate decomposition of the anion, and the complex exhibits promising potential as a modern environmentally-friendly energetic material.