The photochemistry of nitramines, I: Preparation of nitroxides in solution and in situ in single crystals
Bodnar, John William
MetadataShow full item record
Ultraviolet irradiation of cyclic nitramines , both in solution and as single crystals, reveals an EPR signal due to nitroxide radicals. Photolysis of solutions of nitramines in 1 , 3-propanediol cyclic carbonate in the EPR cavity allowed preparation and assignment of the spectra of pyrrolidine N-oxide , piperidine N-oxide , morpholine N-oxide , 4-methylpiperidine N-oxide , 4-t-butylpiperidine N-oxide , 4-nitropiperazine N-oxide , 3-nitro-l ,3,-diazacyclohexane N-oxide, and 3,5-dinitro-l ,3,5-triazacyclohexane N-oxide. Photolysis of N-nitropyrrolidine and N-nitromorpholine single crystals led to in situ generation of pyrrolidine N-oxide and morpholine N-oxide respectively, and hyperfine tensors for both nitrogen and hydrogen coupling were assigned.
Approved for public release; distribution unlimited.
Showing items related by title, author, creator and subject.
Krambeck, Scott D. (Monterey, California: Naval Postgraduate School, 1990-09);The development of a universal solution of the main problem in artificial satellite theory has only recently been accomplished with the aid of high powered computers. The solution to this long standing problem is an ...
Agrawal, B.N. (1990);This paper presents a boundary layer model to predict dynamic characteristics of liquid motion in partially filled tanks of a spinning spacecraft. The solution is obtained by solving three boundary value problems: inviscid, ...
Agrawal, B.N. (1993);This paper presents a boundary-layer model to predict dynamic characteristics of liquid motion in partially filled tanks of a spinning spacecraft. The solution is obtained by solving three boundary-value problems: an ...