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Wu J, Song S, Qi X, Yang H, Wang Y. Insight into melting point differences of dinitroimidazoles and dinitropyrazoles from the perspective of intermolecular interactions. Phys Chem Chem Phys 2024; 26:4752-4758. [PMID: 38251976 DOI: 10.1039/d3cp05380f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Dinitroimidazole (DNI) and dinitropyrazole (DNP), along with their congeners, possess similar molecular structures but exhibit distinct melting points. To analyse and elucidate the fundamental reasons for property differences from the perspective of intermolecular interactions, we proposed a simplified approach named binding energy in clusters (BEC) in computing weak interactions within complex crystal systems. Based on the results of the symmetry-adapted perturbation theory (SAPT) calculations, an approximate estimation of the melting point range can be derived by taking into account the cumulative effect (energy of electrostatic, dispersion and induction terms) and repulsive effect (energy of exchange term) values. We have also proposed a formula for calculating the specific melting point, which indicates that stronger intermolecular interactions have a major impact on the melting point, while the distribution of weak interactions also affects the melting point. This work would provide an effective reference for molecular design and structure-performance analysis.
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Affiliation(s)
- Junnan Wu
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang, 621000, China
| | - Siwei Song
- School of Astronautics, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Xiujuan Qi
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710072, China.
| | - Haijun Yang
- School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, China.
| | - Yi Wang
- School of Astronautics, Northwestern Polytechnical University, Xi'an, 710072, China.
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Huipeng Z, Pengbao L, Yumin Y, Lizhen C, Jianlong W. The crystal structure of 3-amino-1,2,4-triazolium 2,4,5-trinitroimidazolate, C 5H 5O 6N 9. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C5H5O6N9, orthorhombic, P212121 (no. 19), a = 5.6068(2) Å, b = 10.0191(4) Å, c = 18.3799(8) Å, V = 1032.49(7) Å3, Z = 4, Rgt
(F) = 0.0340, wRref
(F
2) = 0.0776, T = 140 K, β = 90.
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Affiliation(s)
- Zhao Huipeng
- School of Chemical Engineering and Technology , North University of China , Taiyuan 030051 , Shanxi Province , P. R. China
| | - Lian Pengbao
- Shanxi North Xingan Chemical Industry CO.LTD , China North Industries Group Corporation Limited , Taiyuan 030008 , Shanxi Province , P. R. China
| | - Yan Yumin
- Shanxi North Xingan Chemical Industry CO.LTD , China North Industries Group Corporation Limited , Taiyuan 030008 , Shanxi Province , P. R. China
| | - Chen Lizhen
- School of Chemical Engineering and Technology , North University of China , Taiyuan 030051 , Shanxi Province , P. R. China
| | - Wang Jianlong
- School of Chemical Engineering and Technology , North University of China , Taiyuan 030051 , Shanxi Province , P. R. China
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3
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Zhang Z, Chen X, Li XS, Wang CT, Niu ZJ, Zhang BS, Liu XY, Liang YM. Ortho C–H Hydroxyalkylation or Methylation of Aryl Iodides by Ethers and TMSI via a Catellani Strategy. Org Lett 2022; 24:6897-6902. [DOI: 10.1021/acs.orglett.2c02425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhe Zhang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xi Chen
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xue-Song Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Cui-Tian Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Zhi-Jie Niu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Bo-Sheng Zhang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Xue-Yuan Liu
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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Lian PB, Chen LZ, He D, Zhang GY, Xu ZS, Wang JL. Crystallization thermodynamics of 2,4(5)-dinitroimidazole in binary solvents. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.08.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lian P, Zhang L, Su H, Chen J, Chen L, Wang J. A novel energetic cocrystal composed of CL-20 and 1-methyl-2,4,5-trinitroimidazole with high energy and low sensitivity. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2022; 78:133-139. [PMID: 35411852 DOI: 10.1107/s2052520622000245] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/06/2022] [Indexed: 06/14/2023]
Abstract
A cocrystal explosive comprising 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20) and 1-methyl-2,4,5-trinitroimidazole (MTNI) (molar ratio, 1:1) was synthesized. The structure of the cocrystal was characterized by single-crystal X-ray diffraction. Its structure was further determined by powder X-ray diffraction, infrared spectroscopy and differential scanning calorimetry which showed that its morphology was different from the morphology of the mechanical mixture of two raw materials. The decomposition temperature of the cocrystal is lower than that of CL-20 and MTNI. The calculated detonation performance is slightly lower than that of HMX, but the cocrystal has excellent sensitivity performance relative to that of CL-20, even lower than that of RDX. These features make this cocrystal ideal to be used in applications with low-sensitivity requirements.
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Key Words
- 1-methyl-2,4,5-trinitroimidazole
- 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane
- cocrystal
- differential scanning calorimetry
- single crystal X-ray diffraction
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Affiliation(s)
- Pengbao Lian
- School of Chemical Engineering and Technology, North University of China, College Road 3, Taiyuan, Shanxi 030051, People's Republic of China
| | - Luyao Zhang
- Scientific Research and Technology Development Department, Gansu Yin'guang Chemical Industry Group, Baiyin, Gansu 730900, People's Republic of China
| | - Hongping Su
- Scientific Research and Technology Development Department, Gansu Yin'guang Chemical Industry Group, Baiyin, Gansu 730900, People's Republic of China
| | - Jun Chen
- Hubei Dongfang Chemical Industry Co., Ltd, Xiangyang, Hubei 441403, People's Republic of China
| | - Lizhen Chen
- School of Chemical Engineering and Technology, North University of China, College Road 3, Taiyuan, Shanxi 030051, People's Republic of China
| | - Jianlong Wang
- School of Chemical Engineering and Technology, North University of China, College Road 3, Taiyuan, Shanxi 030051, People's Republic of China
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Lian P, Chen L, Huang D, Xu J, Xu Z, Cao C, Zhao J, Wang J. Crystallization thermodynamics of 2,4(5)-dinitroimidazole in eleven pure solvents. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2021.07.031] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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