V Centers and Hydrogen Atoms in Irradiated Hydrazinium Dihalides Page: 4 of 10
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-2-
of jn irradiated single crystals of hydrazinium dichloride, N216C12F
and of Br2 in l2H 4r, both at 77*K. Strangely, N2H6F2 irradiated at
77KR did not show P2 but rather hydrogen atoms.
ESR studies of hydrazice and several of its salts have been
reported but apparently none of the dihalides. Hydrazine itself is said
to give the N2 4{ radical7 while the presence of N2 4 in y-irradiated
7. V. 1. Tupikov, V. I. Tsivenko, S. Y. Pshezhetskil, A. G. Kotov and
V. K. Milinchuk, Russ. J. Phys. Chem.f,t$1963).
hydrauinium oxalate has been convtacingly established by a complete eingle-
crystal ESR investigation. This radical has also been found in an ESR
a
8. 0. Edlun4, A. Lpnd and A tilton, J. Chem. Phys. 49, 749 (1968).
study of y-irradiated ferroelectric lithium hydratitium suLfate9 (LLN2i5SO 4)
9. R. Elinc, M. Schara and S. Poberaj, J. Phys. Chem. Solids, 24, 559 (1963).
usimg both polycrystalline material and single crystals, and in -irradiated
hydrasinium monoebloride powder.10 On the other hand y-irradiated hydrauinium
10. A. G. Kotov and S. Y. Pshezhtskii, Russ. J. Phys. Che. 38, 1046 (1964).
sulfate has been reported to give N 2H from an analysis of the ESR spectra
of polyarystallice uaterial10',1 but on the basis of a partial single-crystal study the
species was reported12,13 to be N2R+ It is likely that all these studies
11. J. A. Brivati, J. H. Cross, H. C. R. Symons and D. J. A. Tinling,
J. Chem. Soc. 6504 (1965).
12. I. Barbur, Phys. Stat. Sol. 34, 711 (1969).
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Rogers, M. T. & Watson, J. C. V Centers and Hydrogen Atoms in Irradiated Hydrazinium Dihalides, report, October 31, 1970; United States. (https://digital.library.unt.edu/ark:/67531/metadc1033694/m1/4/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.