Research Studies in NF4(+) Salts.
Abstract
This report describes the results of a 3-year program in basic research studies in NF4(+) chemistry. The mechanism of NF4(+) salt formation and decomposition was determined and the decomposition kinetics of NF4AsF6 and NF4BF4 were measured. The formation of NF3(+) salt intermediates, both in the formation and decomposition of NF4(+) salts, was established, and the NF3(+) radical cation was thoroughly characterized by ESR spectroscopy. Improved synthetic methods were developed for NF4SbF6 and its metathesis to other NF4(+) salts. A new method was developed for the synthesis of NF4(+) salts derived from polymeric Lewis acids which do not form HF soluble cesium salts. The following new NF4(+) salts were synthesized and thoroughly characterized: (NF4)2MnF6, NF4HF2, NF4UF5O, NF4CLO4 and NF4SO3F. In addition, the novel N2F3SnF5 and N2F3SbF6 salts, which are useful burning rate modifiers in solid propellant NF3-F2 gas generator formulations, were prepared and characterized. Unsuccessful attempts were made to prepare NF4NO3, NF4ClF4O, NF4BrF4O, NF4BrO4 and NF4(+) salts of several transition metal fluoride anions. Crystal structure determinations of NF4BF4 and NF4SbF6, and the measurement of thermodynamic data on NF4BF4, NF4PF6, NF4AsF6, and NF4SbF6 are in progress.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 23, 1980
- Accession Number
- ADA086981
Entities
People
- K. O. Christe