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- W1971291824 abstract "Phenylpentazole (PhN5) and its derivatives with 1–3 electron donating substituents (–OH, –OCH3, –OC2H5 and –N(CH3)2) were studied using density functional theory. The pyrolysis mechanism and effects of substituents on stabilities were discussed. The activation energies (Eas, 362–402 kJ mol−1) for the cleavage of the C–N bonds linking the aryl and the pentazole are far larger than those (109–117 kJ mol−1) for the breaking of the N–N bonds in the pentazole ring. Decomposition of the pentazole ring should be the initial step of pyrolysis of arylpentazole and its derivatives. The pentazole ring in PhN5 is stabilized by substituents which increase the electron density and strengthen the delocalization of the N5 ring. The abilities of these substituents to improve Ea and to decrease the frontier orbital energy gap (Eg) have the same order: –N(CH3)2 > –OC2H5 > –OCH3 > –OH." @default.
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- W1971291824 date "2014-10-21" @default.
- W1971291824 modified "2023-10-13" @default.
- W1971291824 title "Theoretical studies on the stability of phenylpentazole and its substituted derivatives of –OH, –OCH<sub>3</sub>, –OC<sub>2</sub>H<sub>5</sub>and –N(CH<sub>3</sub>)<sub>2</sub>" @default.
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- W1971291824 doi "https://doi.org/10.1039/c4ra10669e" @default.
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