New High Energy Density Small Ring Systems
Final rept. Sep 1986-Nov 1989,
ALABAMA UNIV IN BIRMINGHAM DEPT OF CHEMISTRY
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A theoretical research investigation of four atom light element species has been undertaken in order to find propellants with revolutionary performance. The ab initio calculations show that the rhombic geometry is a global minima on the potential energy surface of many dicarbides and diborides composed of H, Li, Be, B, C, and Si. By means of bond-stretch isomerism, bonding pattern change, these rhombic species can store significant amounts of energy - 87 kcalmole to 122kcalmole. Only in the case of B2Be2 was the tetrahedral form more stable. All of the four-atom species found stable by this investigation are estimated to provide high specific impulses.
- Flight Control and Instrumentation
- Rocket Propellants