TY - JOUR
T1 - Nitrogen-rich alkali metal salts (Na and K) of [bis(N,N-bis(1h-tetrazol-5-yl)amine)-zinc(ii)] anion
T2 - Syntheses, crystal structures, and energetic properties
AU - Li, Fugang
AU - Zhao, Wenyuan
AU - Chen, Sitong
AU - Zhang, Tonglai
AU - Zhou, Zunning
AU - Yang, Li
N1 - Publisher Copyright:
Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
PY - 2015/4/1
Y1 - 2015/4/1
N2 - Two nitrogen-rich alkali metal salts based on nitrogen-rich anion [Zn(bta)2]2-: {[Na2Zn(bta)2(H2O)8]·H2O}n (1) and {[K2Zn(bta)2(H2O)4]}n (2) were synthesized by reactions of alkali hydroxide, N,N-bis(1H-tetrazol-5-yl)amine (H2bta), and zinc chloride in aqueous solutions. The crystal structures of 1 and 2 were determined by low temperature single-crystal X-ray diffraction and fully characterized by elemental analysis and FT-IR spectroscopy. The structures demonstrate that an infinite 1-dimensional (1D) chain structure is constructed by Na+ ions and bridging water molecules in compound 1, which is connected by extensive hydrogen bonds forming a complex 3D network, whereas compound 2 features a more complicated 3D metal-organic framework (MOF). The thermal behaviors of 1 and 2 were investigated by differential scanning calorimetry (DSC) measurements. The DSC results illustrate that both compounds exhibit high thermal stabilities (decomposition temperature > 345 C). In addition, the heats of formation were calculated on the basis of the experimental constant-volume energies of combustion measured by using bomb calorimetry. Lastly, the sensitivities towards impact and friction were assessed according to Bundesamt für Materialforschung (BAM) standard methods.
AB - Two nitrogen-rich alkali metal salts based on nitrogen-rich anion [Zn(bta)2]2-: {[Na2Zn(bta)2(H2O)8]·H2O}n (1) and {[K2Zn(bta)2(H2O)4]}n (2) were synthesized by reactions of alkali hydroxide, N,N-bis(1H-tetrazol-5-yl)amine (H2bta), and zinc chloride in aqueous solutions. The crystal structures of 1 and 2 were determined by low temperature single-crystal X-ray diffraction and fully characterized by elemental analysis and FT-IR spectroscopy. The structures demonstrate that an infinite 1-dimensional (1D) chain structure is constructed by Na+ ions and bridging water molecules in compound 1, which is connected by extensive hydrogen bonds forming a complex 3D network, whereas compound 2 features a more complicated 3D metal-organic framework (MOF). The thermal behaviors of 1 and 2 were investigated by differential scanning calorimetry (DSC) measurements. The DSC results illustrate that both compounds exhibit high thermal stabilities (decomposition temperature > 345 C). In addition, the heats of formation were calculated on the basis of the experimental constant-volume energies of combustion measured by using bomb calorimetry. Lastly, the sensitivities towards impact and friction were assessed according to Bundesamt für Materialforschung (BAM) standard methods.
KW - Coordination chemistry
KW - Energetic materials
KW - Metal-organic frameworks
KW - Tetrazole
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=84927700879&partnerID=8YFLogxK
U2 - 10.1002/zaac.201500078
DO - 10.1002/zaac.201500078
M3 - Article
AN - SCOPUS:84927700879
SN - 0044-2313
VL - 641
SP - 911
EP - 916
JO - Zeitschrift fur Anorganische und Allgemeine Chemie
JF - Zeitschrift fur Anorganische und Allgemeine Chemie
IS - 5
ER -