摘要
季戊四醇四硝酸酯(即太安,PETN)是一种爆炸性能优良的高能炸药,也是高聚物粘结炸药(PBX)中重要的基炸药。
用量子化学自洽场分子轨道(SCF-MO)PM3、AM1方法和分子力学(MM)PCFF力场,COMPASS力场,对典型炸药PETN与系列高聚物(PVDF、PCTFE、PTFE、PPFP、PS、PAN、PVA、AS等)构成的混合体系进行模拟计算研究。取尺寸匹配的原子簇模型,通过全优化寻找能量极小构型,获得大量包括结合能在内的超分子结构和性能参数。按“组分或基团加和法则”近似地求得系列高聚物与基炸药的结合能。发现对所研究的PETN/高聚物混合体系,在MM不同力场之间,MO不同方法之间,以及MM与MO之间,均能求得平行一致且线性相关的结合能。以结合能相对值作为优选高聚物粘结剂的理论依据,为高聚物粘结炸药(PBX)配方设计开辟了新的途径。
研究高能体系中的分子间相互作用不仅可为混合炸药配方设计奠定理论基础、提供信息,而且将推进高能材料学科的发展。
Pentaerythrol Tetrainitrate (TaiAn, Petn) is a very powerful explosive with excellent explosion property, and also a principal dynamite of polymer bonded explosives (PBX) .
The Self-Consistent-Field Molecular Orbital (SCF-MO)PM3, AM1 methods in quantum chemistry and molecular mechanics (MM) Pcff,Compass force field, etc, have been applied to simulating calculation on the mixed system of typical explosive (PETN) and a series of polymers(PVDF, PCTFE, PTFE, PPFP, PS, PAN, PVA, etc.). A great deal of parameters of structures and properties including combination energies for supermolecules were obtained using full geometry optimization on the basis of atomic cluster matching size model. It is suggested that the combination energies between a series of polymers and explosives can be calculated by using "component or group adding principle". It is found that there are good linear relations between combination energies calculated by different MM force fields, MO methods, and between MM force fields and MO methods. To pioneer a new way for the design of polymer-bonded explosive (PBX) formulation, we suggested that the relative values of combination energies can be considered as a theore
tical criterion
A study on intermolecular interaction not only provides important information design of mixed explosives, but also plays a promotive role in the development of energetic materials.
引文
1 Stine J R, Mater. Res. Soc. Symp. Proc., 1993, 296, 33-37
2 Graboske, Science & Technology Review, 1997, 3
3 孙业斌,惠君明,曹欣茂.军用混合炸药.第一版,北京:兵器工业出版社,1995
4 T.乌尔班斯基.火炸药的化学与工艺学.第Ⅱ卷.北京:国防工业出版社,1976
5 《混合炸药编写组》.猛炸药的化学与工艺学.北京:国防工业出版社,1983
6 Copp J L, Napier S E, Nash T, Powell W J, Skelly H, Ubbelohde A R, Woodward P. Philos. Trans. R. Soc. London., Ser. A, 1948, 241, 197-202
7 Linder PW. Trans. Faraday Soc., 1961, 57, 1024
8 孙国祥.高聚物混合炸药.北京:国防工业出版社,1984
9 Cumming A S, Leiper G A, Robson E. Molecular Modeling as a Tool to Aid the Design of Polymer Bonded Explosives[A]. 24th International Annual Conference of ICT [C], Karlsruhe, Germany: 1993
10 LI Jin-Shan, XIAO He-Ming, DONG Hai-Shan, et al. Fundamental Research for the Design of Mixed Explosives Formulation: Intermolecular Interaction Calculation [A], 26th International Pyrotechnics Seminar, Nanjing China, 1999
11 LI Jin-Shan, XIAO He-Ming, DONG Hai-Shan. Theoretical study on intermolecular interaction of epoxyethane dimer. Int. J. Quantum Chem.. 2000, 78: 94-98
12 李金山,肖鹤鸣,董海山.TATB与二氟甲烷以及聚偏氟乙烯的分子间相互作用.化学学报.2001,59(5):653-658
13 LI Jin-Shan, XIAO He-Ming. A study on the intermolecular interaction of energetic system—mixtures containing-CNO_2 and -NH_2 groups. Propellants, Exp]osives, Pyrotechnics. 2000, 25: 26-30
14 李金山,肖鹤鸣,董海山.PBX量子化学研究—TATB与甲烷、聚乙烯分子间的相互作用.爆炸与冲击.2000,20:221-227
15 XIAO He-Ming, LI Jin-Shan, DONG Hai-Shan. A quantum-chemical study of PBX: intermolecular interaction of TATB with CH_2F_2 and with linear fluorine-containing polymers. J. Phys. Org. Chem.. 2001, 14: 644-649
16 李金山,肖鹤鸣.叠氮化氢二聚体的分子间相互作用,物理化学学报,2000,16(1):36-40
17 LI Jin-Shan, XIAO He-Ming, DONG Hai-Shan. A theoretical study on the intermolecular interaction of energetic system—Nitromethane dimer.
Chinese J. Chem.. 2000, 18(6): 815-819
18 肖鹤鸣,李金山,董海山.高能体系分子间相互作用研究—含-NNO_2和-NH_2混合物,化学学报,2000,58(3):297-302
19 居学海,肖鹤鸣,贡雪东.N-甲硝胺二聚体分子间相互作用的理论研究.高等学校化学学报.2001
20 London F Z. Phys. Chem. (B) 1930, 11: 222
21 王大喜,李树森,肖鹤鸣,化学学报,1992,50,335
22 D.X. Wang, H.M. Xiao and S.S. Li, J.Phys. Org. Chem., 1992, 5, 2485.
23 Boys S F, Bernadi F. The calculation of small molecular interactions by the differences of separate total energies. Some procedures with reduced errors. Mol. Phys. 1970, 19: 533-566
24 Duquette G, Ellis T H, Scoles G, Watts R O. An intermolecular potertial for (NH_3)_2. J. Chem. Phys. 1978, 68: 2544-2549
25 Dacre P D. The interaction of a water molecule with an ion at a distance.. J. Chem. Phys., 1984, 80: 5677-5683
26 Bachrach S M, Streitwieser A Jr. Electron density supersition errors in ethynyllithium. J. Am. Chem. Soc. 1948, 106: 2283-2287
27 Klopper W, Kutzelnigg W. Moller-Plesset calculations taking care of the correlation cusp. Chem. Phys. Lett. 1986, 134: 17-22
28 Szalewicz K, Cole S, Kolos W, Bartlett R J. A theoretical study of the water dimer interaction. J. Chem. Phys. 1988, 89: 3662-3673
29 P. Hobza, R. Zahradnik, Intermolecular interactions between medium-sized systems, nonempirical and empirical calculations of interaction energies: successes and failures. Chem. Rev. 1988, 88, 871-897
30 Mayer I, Surjan P R. Improved intermolecular SCF theory and the BSSE problem. Inter. J. Quantum Chem., 1989, 36: 225-240
31 Scheiner S. Ab initio studies of hydrogen bonding. Ed. Maksic Z B Theoretic Models of Chemical Bonding. Berlin: Springer-Verlag, 1991, 173-227
32 Yoon B J, Jhon M S. Ab initio potential function of flexible water-water interaction. Chem. Phys. Lett. 1991, 178: 253-258
33 Vib (?)k (?), Mayer I. A BSSE-free SCF algorithm for intermolecular interactions. Ⅱ. Sample calculations on hydrogen-bonded complexes. Inter. J. Quantum Chem. 1992, 43: 801-811
34 Valiron P, Vib(?)k (?), Mayer I. Comparison of a posteriori and a priori BSSE
correction schemes for SCF intermolecular energies. J. Comp. Chem.. 1993, 14: 401-409
35 Nagy P I, Smith D A, Alagona G, Ghio C. Ab initio studies of free and monohydrated carboxylic acids in the gas phase. J. Phys. Chem.. 1994, 98: 486-493
36 Hobza P, Selzie H L, Schlag E W. Structure and properties of benzene-containing molecular cluster. Chem. Rev.. 1994, 94: 1767-1785
37 Langlet J, Caillet J, Caffarel M. A perturbation study of some hydrogen-bonded dimers. J. Chem. Phys. 1995, 103: 8043-8057
38 王一波.高级量子化学计算法研究H_2S和H_2O分子间相互作用.中国科学(B辑),1995,25:673-682
39 王一波,陶福明,潘毓刚.氢键的精确从头算计算方法极其用于NH_3,H_2O和HF分子间氢键的研究.中国科学(B辑).1995,25:1016-1025
40 Hobza P, Accurate ab initio calculations on large van der Waals clusters. Annual reports on the progress of chemistry, Section C, Phys. Chem.. 1997, 93: 257-288
41 Paizs B, Suhai S. Comparative study of BSSE correction methods at DFT and MP2 levels of theory. J. Comp. Chem. 1998, 19: 575-584
42 Tsuzuki S, Uchimaru Y, Milami M, Tanabe K. Intermolecular interaction potential of the carbon dioxide dimer. J. Chem. Phys. 1998, 109: 2169-2175
43 Rowley R L, Pakkanen T. Determination of a methane intermolecular potential model for use in molecular simulations from ab initio calculations. J. Chem. Phys. 1999, 110(7): 3368-3377
44 Hobza P, Sponer J. Structure, energetics, and dynamics of the nucleic acid base pairs: Nonempirical ab initio calculations. Chem. Rev. 1999, 99: 3247-3276
45 Chalasinski G, Szczesniak M M. State of the art and challenges of the ab initio theory of intermolecular interactions. Chem. Rev. 2000, 100, 4227-4252
46 Curtiss L A, Frurip D J, Blander M. Studies of molecular association in water and heave water vapors water by measurement of thermal conductivity. J. Chem. Phys. 1979, 71: 2703-2711
47 Reimers J R, Watts R O, Klein M L. Intermolecular potential functions and
the properties of water. Chem. Phys. 1982, 64: 95-114
48 江元生著,结构化学,高等教育出版社,1997
49 Hohenberg P, Kohn W. Inhomogeneous electron gas. Phys. Rev. B. 1964, 136: 864
50 Kohn W, Sham L J. Self-consistent equations including exchange and correlation effects. Phys. Rev. A. 1965, 140: 1133
51 Sham L J, Kohn W. One-particle properties of an inhomogeneous interacting electron gas, Phys. Rev. 1966, 145: 561
52 Tao F M, Kleemper W. Ab initio search for the equilibrium structure of the ammonia dimer, J. Chem. Phys. 1992, 99(8): 5976-5982
53 Tao F M, Pan Y K. An accurate ab initio calculation ofthe Ne_2 potential. Chem. Phys. Lett. 1992, 194(3): 162-166
54 Mayer I. Towards a "chemical" Hamiltonian. Inter. J. Quantum Chem. 1983, 23: 341-363
55 Herzberg G. Molecular Spectra and Molecular Structure. Ⅱ. Infrared and Raman Spectra of Polyatomic Molecules, Princeton: Van Nostrand, 1945
56 Pople J A, Schlegel H B, Krishnan R, Defrees D J, Binkley J S, Frisch M J, Whiteside R A, Hour R F, Hehre W J. Int. J. Quantum Chem., Quantum Chem. Symp. 1981, 15: 269
57 Cox A P, Waring S. Trans. Faraday Soc. 1971, 67: 3441
58 Gong X D, Xiao H M. Studies on the molecular structures, vibrational spectra and thermodynamic properties of organic nitrates using density functional theory and ab initio methods. J. Mol. Struct. (Theochem). 2001, 572: 213-221
59 Gong X D, Xiao H M, van de Graaf B. Ab initio studies on four alkyl nitric esters. J. Mol. Struct. (Theochem). 1997, 393: 207-212
60 S.W. Benson, F.R. Cruick, D.M. Golden, G. R. Haugen, H.E.O' Neal, A.S.Rodgers, R. Shaw and R.Walsh, Chem. Rev., 1969, 69, 279.
61 倚地智哲郎,大内博史,田村昌山,吉田忠雄,工业炸药,1984,45,66
62 van der Veken B J, Guirgis G A, Durig J R. J. Mol. Struct. (Theochem). 1986, 142: 105
63 松永猛裕,吉田忠雄,化学安全,1985,3,21
64 Hwang D R, Matsunaga T, Tamura M, Yoshida T, Kogyo Kayaku. 1988, 49(5): 328
65 肖鹤鸣,贡雪东,俞柏恒.化学学报.硝基化合物生成热的分子轨道研究.1994,52:750-754
66 A. Yoshaki, et al., J. Energ. Mater., 1993, 11, 195
67 M.J.S. Dewar, M. Shangshai and S.D. Worley, J. Am. Chem. Soc., 1969, 91, 3590
68 新井充,安腾隆之,田村昌山,吉田忠雄,工业炸药,1980,41,8
69 A. Delpuech and J. Cherville, Propellants and Explosives, 1979, 4, 121
70 黄东荣,松永猛裕,田村昌山,吉田忠雄,工业炸药,1988,49,328
71 Bingham R C, Dewar M J S, Lo D H. Ground states of molecules. ⅩⅩⅤ. MINDO/3. An improved version of the MINDO semiempirical SCF-MO method. J. Am. Chem. Soc., 1975, 97: 1285
72 Dewar M J S, Thiel W. Ground states of molecules. 38. The MNDO method. Approximations and parameters. J. Am. Chem. Soc, 1977, 99: 4899
73 Dewar M J S, Zoebisch E G, Healy E F, Stewart J J P. AMI: A new general purpose quantum mechanical molecular model. J. Am. Chem. Soc. 1985, 107: 3902-3909
74 Stewart J J P. Optimization of parameters for semiempirical methods Ⅰ. J. Comput. Chem., 1989, 10: 209
75 Frisch M J, Trucks G W, Schlegel H B, et al. Gaussian 98, Revision A. 7, Gaussian, Inc., Pittsburgh PA, 1998
76 Stewart J J P. Mopac: A semiempirical molecular orbital program, J. Comput-Aided Mol. Des. 1990, 4: 1
77 van Oss C J, Chaudhury M K, Good R J. Interracial Lifshitz-van der Waals and polar interaction in macroscopic systems. Chem. Rev., 1988, 88: 927-941
78 徐庆兰.高聚物粘结炸药包覆过程及粘结机理的初步探讨.含能材料,1993,1:1-5
79 宋华杰,董海山,郝莹.TATB、HMX与氟聚合物的表面能研究.含能材料,2000,8:104-107
80 Cumming A S, Leiper G A, Robson E. Molecular modeling as a tool to aid the design of polymer bonded explosives. 24th International Annual Conference of ICT, Karlsruhe, Germany, 1993
81 李金山.高能材料分子间相互作用的量子化学研究.博士学位论文,南京理工大学.2000
82 Li Jinshan, Xiao Heming, Dong Haishan, Gao Pin. Fundamental research for the formulation design of mixed explosives-Intermolecular interaction calculations. Proceeding of 26th International Pyrotechnics Seminar (Nazjing) 1999, 238-245
83 李金山,肖鹤鸣,董海山.PBX的量子化学研究—TATB与甲烷、聚乙烯的分子间相互作用.爆炸与冲击,2000,20(3):221-227
84 Xiao Heming, Li Jinshan and Dong Haishan, A quantum-chemical study of PBX: intermolecular interactions of TATB with CH_2F_2 and with linear fluorine-containing polymers, J. Phys. Org. Chem., 2001, 14: 644-649
85 肖继军.环杂硝胺高能化合物和相关混合体的结构-性能研究.博士学位论文,南京理工大学,2003
86 孙国祥.高分子混合炸药.北京:国防工业出版社,1984
87 Hoffman D M, Caley L E. Polymer blends as high explosive binders. Polymer Energineering and Seience, 1986, 26: 1489-1499
88 耿俊峰,劳允亮.对高分子塑性耐热炸药的界面化学研究.北京理工大学学报.1991,11:87-93
89 姚维尚,戴健吾,谭惠民.以偶联技术提高固体推进剂力学性能的研究.兵工学报(火化工分册).1994,2:11-15
90 欧育湘.太安.北京:兵器工业出版社.1993
91 贡雪东,肖鹤鸣,高贫.季戊四醇四硝酸酯的分子结构和热解机理.有机化学.1997,17:513-519
92 Gruzdkov Y A, Gupta Y M. Shock wave initiation of pentaerythritol tetranitrate single crystals: mechnism of anisotropic sensitivity, J. Phys. Chem. A, 2000, 104: 11169-11176
93 贡雪东,硝酸酯和粘土结构-性能的QM和MM研究,博士学位论文,南京理工大学,1996
94 TAN, Jin-Zhi; XIAO, He-Ming; GONG, Xue-Dong; LI, Jin-Shan. Ab Initio Study
on The Intermolecular Interaction and Thermodynamic Properties of Methyl Nitrate dimer. Chinese J. Chem. 2001, 10(19): 931-937
95 谭金芝,肖鹤鸣,贡雪东,李金山.硝酸乙酯分子间相互作用的ab initio研究.化学学报,2002
96 谭金芝,肖鹤鸣,贡雪东,李金山.硝酸甲酯分子间相互作用的DFT和ab initio比较.物理化学学报,2002,4
97 王平,李顺秀,黄悦,李常青,含能材料,1994,2,29
98 R.Boschan, R.Merrow and R.W.Van Dolah, Chem. Rev., 1955, 55, 485
99 N.W.Cormon, Eastman Organic Chemical Bulletin. 1970, 42, (2)
100 T.Urbanski, Chemistry and Technology of Explosives, Pergamon Press, 1984, Vol.2 and Vol.4.