Thermochemistry of 2,2′-dipyridil N-oxide and 2,2′-dipyridil N,N′-dioxide. The dissociation enthalpies of the N−O bonds

Thermochemical properties of 4-N,N-dialkylamino-7-nitrobenzofurazan derivatives (alkyl=methyl, ethyl)

“…During the last two decades, our Research Group has been involved in a systematic study of the dissociation enthalpy of terminal N-O bonds in heterocyclic compounds [1][2][3][4][5][6][7][8][9][10][11][12]. These studies are a contribution to the understanding of the chemical behavior of those organic compounds, particularly as oxidizing agents, enabling the ordering of them on a reactivity scale [1].…”

“…These studies are a contribution to the understanding of the chemical behavior of those organic compounds, particularly as oxidizing agents, enabling the ordering of them on a reactivity scale [1]. Several classes of compounds with N-O terminal bonds have been studied, with particular attention devoted to quinoxaline N,N-dioxides [2][3][4][5][6][7], pyrazine N,N-dioxides [1,8,9], phenazine N,N-dioxides [10], benzofurazan N-oxides [1], pyridine N-oxides [11] and dipyridil N-oxides [12]. We have extended recently these studies to 4-nitro-2,1,3-benzothiadiazoles [13] and Miranda et al also have published studies on the structure, energetics and aromaticity of 2,1,3-benzothiadiazole [14,15].…”