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- W203413519 abstract "Abstract : Seeking to identify structural features of saturated, (all) tertiary, alkyl multiamines (STAMs) that correlate with hypergolic ignition delays, conformers of STAMS whose ignition delays have been measured were established through density functional theory-based calculations. Examined from the standpoint of lone pair/(C-N and C-C) bond orientations, a correlation is suggested. Conformers of 1,3-dimethylimidizolidine (DMIZ), a notional hypergol whose synthesis and testing was originally recommended for other reasons, were therefore characterized. On the basis of the characterization, it is expected to have a short ignition delay. Moreover, estimates of DMIZ's density specific impulse indicate that its performance will be competitive with hydrazine-based fuels. The lowest energy structure of a second notional hypergol 1,3-dimethylhexahydropyrimidine (DMHHP) has a lone pair/lone pair orientation unlike any found in previously tested STAMs. The results suggest that the potential of STAMs as replacements for hydrazines in hypergolic propulsion systems may not yet be fully realized, and that the synthesis and testing of DMIZ and DMHHP should be pursued." @default.
- W203413519 created "2016-06-24" @default.
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- W203413519 date "2004-12-01" @default.
- W203413519 modified "2023-09-27" @default.
- W203413519 title "Computationally Based Design and Screening of Hypergolic Multiamines" @default.
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