Is the formation of 1,10-phenanthroline di-N-oxide possible?

Article abstract of DOI:10.1016/S0040-4039(97)00212-8

5,6-Dichloro-5,6-dihydro-1,10-phenanthroline (2) was found as an additional product of the hypochlorous acid action on 1,10-phenanthroline. When treated with MCPBA the product of the chlorine addition yielded a corresponding di-N-oxide 3, which readily lost hydrogen chloride under the influence of sodium isopropoxide. The resulting monochloro di-N-oxide 5 molecules (assumed to be flat) revealed a satisfactory stability unless the neutral or basic solution was made acidic.