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Hang GY, Wang JT, Xue HJ, Yu WL, Wang T, Shen HM. Molecular dynamics (MD) study to predict performances of a novel hexanitrohexaazaisowurtzitane/1,4-dinitroimidazole (CL-20/1,4-DNI) energetic cocrystal under different temperatures. J Mol Model 2024; 30:210. [PMID: 38877350 DOI: 10.1007/s00894-024-06018-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024]
Abstract
CONTEXT To estimate the influence of temperature on properties of 2,4,6,8,10,12-hexanitro- 2,4,6,8,10,12-hexaazaisowurtzitane/1,4-dinitroimidazole (CL-20/1,4-DNI) cocrystal explosive, the supercell crystal of CL-20/1,4-DNI cocrystal model was established. The mechanical properties, sensitivity, and stability of cocrystal model under different temperatures (T = 225 K, 250 K, 275 K, 300 K, 325 K, 350 K) were predicted. Results show that mechanical parameters, including bulk modulus, tensile modulus and shear modulus are the lowest when temperature is 300 K, while Cauchy pressure is the highest, indicating that CL-20/1,4-DNI cocrystal model has better mechanical properties at 300 K. Cohesive energy density (CED) and its components energies decrease monotonically with the increase of temperature, illustrating that the CL-20 and 1,4-DNI molecules are activated and the safety of cocrystal explosive is worsened with the increase of temperature. Cocrystal model has relatively higher binding energy when the temperature is 300 K, implying that the CL-20/1,4-DNI cocrystal explosive is more stable under this condition. METHODS The CL-20/1,4-DNI cocrystal model was optimized and the properties were predicted through molecular dynamics (MD) method. The MD simulation was performed with COMPASS force field and the ensemble was set as NPT, external pressure was set as 0.0001 GPa.
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Affiliation(s)
- Gui-Yun Hang
- Xi'an Research Institute of High-Tech, Xi'an, 710025, Shaanxi, China.
| | - Jin-Tao Wang
- Xi'an Research Institute of High-Tech, Xi'an, 710025, Shaanxi, China
| | - Hai-Jian Xue
- Xi'an Research Institute of High-Tech, Xi'an, 710025, Shaanxi, China
| | - Wen-Li Yu
- Xi'an Research Institute of High-Tech, Xi'an, 710025, Shaanxi, China
| | - Tao Wang
- Xi'an Research Institute of High-Tech, Xi'an, 710025, Shaanxi, China
| | - Hui-Ming Shen
- Xi'an Research Institute of High-Tech, Xi'an, 710025, Shaanxi, China
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Xia LH, Wang YN, Yang XM, Liang LN, Li ZM, Zhang TL. Cupric coordination compounds with multiple anions: a promising strategy for the regulation of energetic materials. RSC Adv 2023; 13:22549-22558. [PMID: 37497086 PMCID: PMC10368156 DOI: 10.1039/d3ra01739g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 07/10/2023] [Indexed: 07/28/2023] Open
Abstract
To seek new high energetic materials, N-methylene-C-bridged nitrogen-rich heterocycle 1-((4,5-diamino-4H-1,2,4-triazol-3-yl)methyl)-1H-1,2,4-triazol-3,5-diamine (DATMTDA) (2) was first synthesized, and two copper coordination compounds ([Cu12(OH)4(ClO4)4(H2O)4(DATMTDA)12](ClO4)16·12H2O (3) and [Cu3(OH)(ClO4)(DATMTDA)3](ClO4)3(NO3) (4)) based on 2 were formed by introducing different anions. These compounds were characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction analysis. The crystal structures of compounds 3 and 4 are similar and crystallize in monoclinic systems with the P21/c space group, while the central copper atoms show different coordination behaviors. However, the structure of compounds 3 and 4 is analogous to a three dimensional structure owing to the O atom of OH-, forming coordinate bonds with three copper cations. The NBO charge of 2 was calculated using density functional theory to understand its coordination modes. The Hirshfeld surface calculation reveals that 3 and 4 have strong intermolecular interactions. The thermal decomposition processes, non-isothermal kinetics, and enthalpies of formation and sensitivities of these compounds were investigated. By introducing one NO3- of compound 4 to replace one ClO4- in compound 3, compound 4 shows lower density and lower decomposition peak temperature but lower sensitivity and a higher formation enthalpy than compound 3. The complex 4 possesses an outstanding catalytic effect for the decomposition of AP than that of complex 3. The results illustrate the possibility of introducing various anions into energetic coordination compounds for the regulation of energetic materials.
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Affiliation(s)
- Liang-Hong Xia
- State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology Beijing 100081 China +86 10 68911202 +86 10 68911202
| | - Yan-Na Wang
- College of Chemistry and Chemical Engineering, Xingtai University Xingtai 054001 China
| | - Xiao-Ming Yang
- China Safety Technology Research Academy of Ordnance Industry Beijing 100053 China
| | - Lin-Na Liang
- State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology Beijing 100081 China +86 10 68911202 +86 10 68911202
| | - Zhi-Min Li
- State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology Beijing 100081 China +86 10 68911202 +86 10 68911202
| | - Tong-Lai Zhang
- State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology Beijing 100081 China +86 10 68911202 +86 10 68911202
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Hang GY, Yu WL, Wang JT, Wang T, Shen HM. Theoretical prediction on performance of a novel CL-20/bicyclo-HMX energetic cocrystal by MD method. Struct Chem 2022. [DOI: 10.1007/s11224-022-02118-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Kurtay G, Şen N. Improved stability of picric acid: 1-aminopyrene’ charge-transfer complex: Synthesis, characterization, energetic performance and molecular docking study with B-DNA. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Theoretical insight on effect of DMSO-acetonitrile co-solvent on the formation of CL-20/HMX cocrystal explosive. J Mol Model 2021; 27:8. [PMID: 33392813 DOI: 10.1007/s00894-020-04621-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 11/26/2020] [Indexed: 10/22/2022]
Abstract
CL-20/HMX-solvent interface models were established to understand the effect of DMSO-acetonitrile co-solvent on the formation of CL-20/HMX cocrystal. The molecular dynamics simulations were applied to theoretically investigate the interactions of CL-20/HMX cocrystal surfaces and dimethyl sulfoxide/acetonitrile co-solvents. The binding energies were calculated, and the interaction between solvent molecules and CL-20/HMX cocrystal faces was analyzed. The results show that molecular interactions would be affected by the mole ratios of solvent, and the comparison of the binding energies with different mole ratios revealed that dimethyl sulfoxide/acetonitrile with mole ratio of 1:3 favors the formation of CL-20/HMX cocrystal.
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Ren J, Zhang W, Zhang T, Li Z, Zeng Q, Zhang T. A simple and efficient strategy for constructing nitrogen-rich isomeric salts and cocrystal through pK calculation. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.128955] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Şen N, Dursun H, Hope KS, Nazir H, Acar N, Atakol O. Towards low-impact-sensitivity through crystal engineering: New energetic co-crystals formed between Picric acid, Trinitrotoluene and 9-Vinylanthracene. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128614] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ma P, Liu X, Hao L, Zhai D, Wang J, Ma C, Pan Y, Jiang J, Zhang L. Pressure induced structural behavior of energetic cocrystal TNT/TNB: a density functional theory study. J Mol Model 2020; 26:121. [PMID: 32382994 DOI: 10.1007/s00894-020-04394-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 04/24/2020] [Indexed: 11/30/2022]
Abstract
In order to find out the relationship between external pressures and properties of energetic materials, we used the density functional theory (DFT) method to investigate the structural, electronic, and absorption properties of crystalline 2,4,6-trinitrotoluene (TNT)/2,4,6-trinitrotoluene (TNB) under hydrostatic compression of 0-100 GPa. By analyzing the change of lattice constants (a, b, and c) of TNT/TNB under compression conditions, we found that variation tendency of the lattice constants was anisotropic. The b-axis is much stiffer than that along the a- and c-axes, which indicates that the TNT/TNB crystal is anisotropic within a certain pressure region. The pressure-induced structure transformation results in the new covalent bonds O11-C13, O12-C11, O8-C4, and O1-C12 at 60 GPa, and O4-C5 at 80 GPa, respectively. By analyzing the band structure and density of states of TNT/TNB in the pressure range over 40 GPa, the electronic structure of TNT/TNB changed to metallic system, which indicated it becomes more sensitivity under high pressures. The pressure-induced structure transformation of TNT/TNB also contributed to the relatively high optical activity of TNT/TNB at 70 GPa.
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Affiliation(s)
- Peng Ma
- College of Safety Science and Engineering, Nanjing Tech Univeristy, Nanjing, 211816, China
| | - Xuqin Liu
- College of Safety Science and Engineering, Nanjing Tech Univeristy, Nanjing, 211816, China
| | - Lina Hao
- College of Safety Science and Engineering, Nanjing Tech Univeristy, Nanjing, 211816, China
| | - Diandian Zhai
- College of Safety Science and Engineering, Nanjing Tech Univeristy, Nanjing, 211816, China
| | - Jinpeng Wang
- College of Safety Science and Engineering, Nanjing Tech Univeristy, Nanjing, 211816, China
| | - Congming Ma
- College of Safety Science and Engineering, Nanjing Tech Univeristy, Nanjing, 211816, China.
| | - Yong Pan
- College of Safety Science and Engineering, Nanjing Tech Univeristy, Nanjing, 211816, China.
| | - Juncheng Jiang
- College of Safety Science and Engineering, Nanjing Tech Univeristy, Nanjing, 211816, China
| | - Lin Zhang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
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Şen N, Nazir H, Atҫeken N, Hope KS, Acar N, Atakol O. Synthesis, characterisation and energetic performance of insensitive energetic salts formed between picric acid and 2,3-diaminotoluene, 2,4-diaminotoluene. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127580] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Liu Y, Gou RJ, Zhang SH, Chen YH, Chen MH, Liu YB. Effect of solvent mixture on the formation of CL-20/HMX cocrystal explosives. J Mol Model 2019; 26:8. [DOI: 10.1007/s00894-019-4265-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Accepted: 11/20/2019] [Indexed: 12/01/2022]
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Bozkuş SI, Hope KS, Yüksel B, Atҫeken N, Nazır H, Atakol O, Şen N. Characterization and properties of a novel energetic Co-crystal formed between 2,4,6-Trinitrophenol and 9-Bromoanthracene. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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