The O:H-N bond for the explosive TATB (C6H6N6O6) and LLM-105 (C4H6N4O5) assemblies share similar spectral peak shifts of the O:H-O bond whose covalent part shows negative compressibility and negative thermal expansivity (FIG. ). In contrast, the dangling H-N bond in LLM-105 responds to perturbation regularly because of the absence of O:⇔:N coupling, and the dangling H-N bond vibrates at higher frequencies than the covenant part of the O:H-N due to the effect of undercoordination that shortens and stiffens the dangling one. Serving as food additives and fertilizers, Biurea (C2H6N4O2) and Oxamide (C2H4N2O2) also exhibit the ω(P) spectral features of water . In nitromethane (CH3NO2) , the H-C bond experiences thermal and compression contractions. The compression affects the H-C bond much more than thermal perturbation, as shown in FIG. . This occurrence suggests that the O:⇔C repulsion is insufficiently strong to ensure the HBCP full functioning. The negativity difference between C and H (2.5-2.2 = 0.3) may be too small to ensure the required strong O:⇔C repulsion.