175146.fig.003
Figure 3: The effect on DSE and of substituting –NO2 groups for hydrogens in >C–H groups in cubane compared with the effect of substituting –NO2 groups for hydrogens in >N–H groups in 2,4,6,8,10,12-hexaazaisowurtizane and the effect of substituting –CH2-groups in isowurtzitane with >N–NO2 groups. Note: for compounds having no −NO2 substituents, CRSE = DSE. Open circles: CRSE and DSE values for cubane and nitrocubanes, open triangles: CRSE and DSE values for 2,4,6,8,10,12-hexaazaisowurtzitane and –NO2 substituted 2,4,6,8,10,12-hexaazaisowurtzitanes, open squares: CRSE and DSE values for isowurtzitane and >N–NO2 substituted isowurtzitane (i.e., nitroazaisowurtzitanes). Closed circles: of cubane and nitrocubanes, closed triangles: of 2,4,6,8,10,12-hexaazaisowurtzitane and –NO2-substituted 2,4,6,8,10,12-hexaazaisowurtzitanes, closed squares: of isowurtzitane and >N–NO2-substituted isowurtzitanes (i.e., nitroazaisowurtzitanes).