Reactions of Energetic Carbon Atoms with Ammonia. II^1,2

A Systematic Investigation of [11C]-HCN Production

“…Another aspect of direct production of ["C]-HCN is the reaction of nucleogenic "C with ammonia, which is readily formed in a nitrogen/hydrogen target by radiolysis. As shown by Cacace and Wolf [6], considerable amounts of [^'C]-methyl-amine are formed at low dose rates, while at higher dose rates the predominant product is ^C]-CH4.…”

CHEMICAL EFFECTS OF THE NUCLEAR REACTION $sup 14$N(n,p)$sup 14$C IN VARIOUS NITROGENOUS COMPOUNDS. Progress Report, May 1, 1970--April 30, 1971.

“…The total volatile activity can be determined by "bypass" assay. 6 We are set up to apply this procedureto samples of dissolved azide and hydrazine dihydrochloride targets. The instrumentation cohsists of a HewlettPackard (F. and M. ) Model 700-0019 F gas chromatograph, a Cary…”

“…Consequently, the time required for·irradia-tion of the targets is many times greater for the (n,p) than the (p, 06) reaction, in order that sufficient radioactive product be produced. The extraneous radiation is therefore always large for (n,p) irradiations but can be varied from small to large for the 6 (p, CK) process, depending upon the proton flux. Cacace and Wolf subjected gasdous, liquid, and.…”

Chemical Behavior of Carbon-11 Produced in Liquid Ammonia

“…A.P. WOLF and his collaborators have made clear in some detail the reaction mechanism of the energetic carbon atoms by the systematic investigation of gaseous ammonia with '"C and " C [1,2], They have shown that radioactive methane, methylamine and methylenimine are produced and observed radiation effects on the product spectrum. On the other hand, the ammonium salt systems give different product spectra consisting of Cyanide, cyanamide and guanidine [3,4].…”