Synthesis and comparison of copper( ii ) complexes with various N -aminotetrazole ligands involving trinitrophenol anions

Due to the ongoing research on lead-free energetic materials, two different ligand systems (1-amino-5 H -tetrazole (1-AT), 2-amino-5 H -tetrazole (2-AT), 1-amino-5-methyltetrazole (1-AMT), and 2-amino-5-methyltetrazole (2-AMT)) were applied for the synthesis of 12 new energetic coordination compound...

Full description

Saved in:
Bibliographic Details
Published in:New journal of chemistry 2019, Vol.43 (46), p.18193-18202
Main Authors: Wurzenberger, Maximilian H. H., Bissinger, Benjamin R. G., Lommel, Marcus, Gruhne, Michael S., Szimhardt, Norbert, Stierstorfer, Jörg
Format: Article
Language:English
Subjects:
Anions
Chemical analysis
Chemical properties
Coordination compounds
Copper
Copper compounds
Crystallography
Differential thermal analysis
Electrostatic discharges
Energetic materials
Explosives
Infrared analysis
Infrared lasers
Infrared spectroscopy
Lasers
Lead free
Ligands
Organic chemistry
PETN
Semiconductor lasers
Spectrum analysis
Synthesis
Tetrazoles
X-ray diffraction
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Due to the ongoing research on lead-free energetic materials, two different ligand systems (1-amino-5 H -tetrazole (1-AT), 2-amino-5 H -tetrazole (2-AT), 1-amino-5-methyltetrazole (1-AMT), and 2-amino-5-methyltetrazole (2-AMT)) were applied for the synthesis of 12 new energetic coordination compounds (ECC) with copper( ii ) as the central metal. Different anions based on trinitrophenols (picric acid (HPA), styphnic acid (H 2 TNR), and trinitrophloroglucinol (H 3 TNPG)) were used for the specifical tuning of the energetic and physico-chemical properties of the complexes. Through the choice of ligand, the characteristics of the resulting products can be easily adjusted either towards sensitive primary explosives usable for classical initiation setups or towards laser-ignitable explosives with decreased sensitivities. The ECC were extensively characterized by e.g. , X-ray diffraction (XRD), elemental analysis (EA), IR, differential thermal analysis (DTA), and UV/vis. In addition, the most promising compounds were analyzed by TGA and in classical initiation tests using nitropenta (PETN). Furthermore, the sensitivities towards external stimuli (impact, friction, and electrostatic discharge) were determined by standard methods and the influence of the anions towards them was investigated. Compounds [Cu(TNR)(1-AMT) 2 ] and [Cu(HTNPG)(1-AMT) 2 ] both possess appropriate sensitivities as well as thermal stabilities above 200 °C and show promising results to be used as potential lead azide replacements. In addition, all ECC were irradiated with a near infrared light (NIR) laser diode leading to different responses.
ISSN:1144-0546
1369-9261
DOI:10.1039/C9NJ03937F