Synthesis, Characterization and Energetic Properties of Hydroxymethyl-Bishomocubanone Derivatives

被引:2
|
作者
Lal, Sohan [1 ]
Rao Cheekatla, Subba [1 ]
Suresh, Alati [1 ]
Ayyagari, Narasimham [1 ]
Mallick, Lovely [2 ]
Pallikonda, Gangaram [1 ]
Desai, Poonam [1 ]
Ahirwar, Parmanand [2 ]
Chowdhury, Arindrajit [2 ]
Kumbhakarna, Neeraj [2 ]
Namboothiri, Irishi N. N. [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Mumbai 400076, India
[2] Indian Inst Technol, Dept Mech Engn, Mumbai 400076, India
关键词
Bishomocubanes; High energy density materials; Strained molecules; Facile synthesis; Stability; Detonation and propulsive properties; DFT calculations; CUBANE; 50; YEARS; VINYLIDENECARBENE; CHEMISTRY; HEATS;
D O I
10.1002/chem.202401265
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The present work reports synthesis, characterization and theoretical insights on novel hydroxymethyl-bishomocubanone derivatives. Twelve new bishomocubanes (BHCs) were synthesized and fully characterized by various spectroscopic techniques and single crystal X-ray analysis. The densities of the title compounds were in the range of 1.30-1.59 g/cm3. Density-functional theory (DFT) based calculations at B3LYP/6-311++G(d,p) level of theory were performed on ten selected BHC based cage compounds. Propulsive and ballistic properties of newly synthesized hydroxymethyl-bishomocubanone derivatives in solid and liquid propulsion systems were calculated, and the results suggested that these compounds are superior to conventional fuel RP1 and binder HTPB. The detonation parameters revealed that these compounds are not explosive in nature and safe to use as solid propellants. Furthermore, kinetic and thermal stabilities of the title compounds were determined by HOMO-LUMO energy gap, ESP maps, impact sensitivity (h50) and bond dissociation energies (BDEs) followed by thermogravimetric analysis (TGA) and differential thermal analysis (DTA). Three compounds, a dinitroazide (Isp,vac=310.98 s), a dinitrate (Isp,vac=309.51 s), and a dinitronitrate (Isp,vac=309.20s) were found to be excellent candidates for volume limited applications. Bishomocubane based energetic materials were designed, synthesized and evaluated for their applications in novel propellant formulations in rocket propulsion. Various performance parameters were assessed based on TGA-DTG analysis, BDEs, HOMO-LUMO energy gaps, ESP maps and impact sensitivity (h50). Three derivatives were found to be potential candidates with excellent ballistic performance and good stability for volume limited applications. image
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页数:13
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