TY - JOUR
T1 - Alkali metal salts of 3,6-dinitramino-1,2,4,5-tetrazine
T2 - promising nitrogen-rich energetic materials
AU - Zhang, Tianhe
AU - Du, Jiang
AU - Li, Zhimin
AU - Lin, Xinyu
AU - Wang, Lin
AU - Yang, Li
AU - Zhang, Tonglai
N1 - Publisher Copyright:
© The Royal Society of Chemistry.
PY - 2019
Y1 - 2019
N2 - The alkali metal salts of 3,6-dinitramino-1,2,4,5-tetrazine (DNAT, 1), Li 2 (H 2 O) 4 (DNAT) (2), Na 2 (H 2 O) 3 (DNAT) (3), K 2 (H 2 O)(DNAT) (4), Rb 2 (DNAT) (5) and Cs 2 (DNAT) (6) were synthesized and characterized by elemental analysis, IR spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and single-crystal X-ray diffraction. All of these alkali metal salts possess higher thermal stability (from 240.9 °C to 260.0 °C) than that of DNAT substrate (108.3 °C) due to their numerous coordination bonds and the three-dimensional network structures of the complexes. The number of coordination water molecules, the atomic radius of metal and the different packing forms of the crystal structure contribute to the different thermal stabilities of the alkali metal salts. The experimental (constant-volume) energy of combustion values range from 1331 to 1531 kJ mol −1 . The compounds 1, 4, 5, and 6 are sensitive to impact and friction.
AB - The alkali metal salts of 3,6-dinitramino-1,2,4,5-tetrazine (DNAT, 1), Li 2 (H 2 O) 4 (DNAT) (2), Na 2 (H 2 O) 3 (DNAT) (3), K 2 (H 2 O)(DNAT) (4), Rb 2 (DNAT) (5) and Cs 2 (DNAT) (6) were synthesized and characterized by elemental analysis, IR spectroscopy, differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and single-crystal X-ray diffraction. All of these alkali metal salts possess higher thermal stability (from 240.9 °C to 260.0 °C) than that of DNAT substrate (108.3 °C) due to their numerous coordination bonds and the three-dimensional network structures of the complexes. The number of coordination water molecules, the atomic radius of metal and the different packing forms of the crystal structure contribute to the different thermal stabilities of the alkali metal salts. The experimental (constant-volume) energy of combustion values range from 1331 to 1531 kJ mol −1 . The compounds 1, 4, 5, and 6 are sensitive to impact and friction.
UR - http://www.scopus.com/inward/record.url?scp=85060272131&partnerID=8YFLogxK
U2 - 10.1039/C8CE01827H
DO - 10.1039/C8CE01827H
M3 - Article
AN - SCOPUS:85060272131
SN - 1466-8033
VL - 21
SP - 765
EP - 772
JO - CrystEngComm
JF - CrystEngComm
IS - 4
ER -