Synthesis, structure analysis and thermal behavior of two new complexes: Cu(NH3)4(AFT)2 and Cu(C3H6N2H4)2(AFT)2

Ding, Zimei; Cao, Weipeng; Ma, Xiao; Hang, Xiaojing; Xu, Kangzhen; Song, Jirong; Huang, Jie

doi:10.1016/j.molstruc.2018.07.107

Cited by 8 publications

(11 citation statements)

References 30 publications

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“…The coordination environment of the Ni(NH 3 ) 4 (AFT) 2 complex is similar to that of Cu(NH 3 ) 4 (AFT) 2 . 33 In contrast, this structure is different from that of Zn(NH 3 ) 4 (AFT) 2 . 34 Four neutral ammonia molecules and two AFT anions form a centrosymmetric structure with respect to the central Ni atom.…”

Section: Structure Descriptionmentioning

confidence: 94%

“…The final mass loss stage of 29.03% can be ascribed to the decomposition of the residues and we observe a small exothermic peak at 462.37 °C as evidence of this in the DSC curves. It is very interesting that the major mass loss in compound 1, Cu(NH 3 ) 4 (AFT) 2 33 and Zn(NH 3 ) 4 (AFT) 2 34 all occur from the 200 to 400 °C. The main loss of mass from compound 1 occurs during the middle period of the TG process.…”

Section: Thermal Decomposition Behaviormentioning

confidence: 99%

“…However, the main mass losses for Cu(NH 3 ) 4 (AFT) 2 33 and Zn(NH 3 ) 4 (AFT) 2 34 occur during the final period of the TG process. Although the peak temperature of compound 1 is lower than that of Zn(NH 3 ) 4 (AFT) 2 (320.58 °C), 34 it is higher than those of Cu(NH 3 ) 4 (AFT) 2 (310.92 °C), Cu(C 3 H 6 N 2 H 4 ) 2 (AFT) 2 (219.08 °C), 33 RDX (219 °C) and HMX (275 °C). 35 These data indicate that compound 1 possesses high thermal stability.…”

Section: Thermal Decomposition Behaviormentioning

confidence: 99%

“…This compound can be used to construct new multi-dimensional (one-, two-, three-dimensional (1D, 2D, 3D)) energetic metal-organic frameworks (MOFs) with several metal ions. Hence, a series of complexes of HAFT have been reported such as 33 and [Zn(NH 3 ) 4 (AFT) 2 ], 34 which meet the needs of insensitive impact and thermal stability.…”

Section: Introductionmentioning

confidence: 99%

“…5 kg hammer weight at a height of 1.2 m. The experiment revealed that compound 1 had a lower IS (15.9 J), being less sensitive than Zn(NH 3 ) 4 (AFT) 2 15.0 J), Cu(NH 3 ) 4 (AFT) 233 (12.0 J), and HMX 42 (7.4 J). The advantage of this IS makes compound 1 an interesting candidate as a new, safe energetic material.…”

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confidence: 96%

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Synthesis, crystal structure, and thermal properties of Ni(NH₃)₄(AFT)₂

Wei

Ding

et al. 2020

Journal of Chemical Research

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Ni(NH3)4(AFT)2 [NiC6H16N18O2, AFT = 4-amino-3-(5-tetrazolate)furazan] is synthesized and characterized by elemental analysis and Fourier-transform infrared spectroscopy for the first time. X-ray diffraction measurements are used to determine the crystal structure of compound 1. The results demonstrate that compound 1 crystallized in the orthorhombic crystal system. The nickel(II) ion is six-coordinated by N atoms from two AFT-ligands and four NH3 molecules. Its thermal properties are investigated by differential scanning calorimetry and thermogravimetry-derivative thermogravimetry methods, with the results demonstrating that the differential scanning calorimetry curve exhibits two endothermic and one exothermic processes. The endothermic processes are in the range of 130–510 °C with a peak temperature of 188 °C. The temperature from 230 to 400 °C is the exothermic process in which the peak temperature is 314.58 °C. In addition, Kissinger’s and Ozawa-Doyle’s methods are used for calculating the non-isothermal kinetics parameters. Moreover, the apparent activation energy ( E), safety, and thermal stability parameters ( TSADT, TTIT, Tb) for Ni(NH3)4(AFT)2 are calculated. In addition, the calculated thermodynamic functions ( ∆S≠, ∆H≠, and ∆G≠) for the exothermic decomposition process of Ni(NH3)4(AFT)2 are 55.07 J mol−1 K−1, 196.18 kJ mol−1, and 164.90 kJ mol−1, respectively.

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Section: Structure Descriptionmentioning

confidence: 94%

Section: Thermal Decomposition Behaviormentioning

confidence: 99%