New High Energy Density Small Ring Systems
Abstract
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 kcal/mole to 122kcal/mole. 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1990
- Accession Number
- ADA231309
Entities
People
- K. Lammertsma
Organizations
- University of Alabama at Birmingham