Abstract
The mechanism of the low-temperature radiolysis of the solutions of nickel chloride in methyl alcohol has been investigated by meand of the E.S.R. and optic spectroscopy, chemical analysis and calorimetry. Nickel has been shown to be reduced to a monovalent state in the reaction of Ni(II) with electrons. Simultaneously, under irradiation a CH 2OH-Ni(I) complex is formed. This complex is in conformity with absorption in the region of 560 nm, and with heat evolution on the calorimetric curve of heating at 245–270 K. In the NiC1 2·50 CH 3OH solutions the accumulation of hydrogen, ethyleneglycol, formaldehyde and of the complex containing a CH 2OH radical proceeds linearly with increasing dose with yields 1.3, 1.3, 0.2 and 2.5, respectively. At the initial stages of radiolysis the yield of the monovalent nickel is 0.7 1/100 eV. It is concluded that the major part of radicals is formed in the first sphere of the solvating shell of ion.
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