Instability of CL-20 exposed to the effects of alpha-particle

Türker, Burhan Lemi
Within the constraints of density functional theory, (B3LYP/6-31G(d,p) and B3LYP/6-31++G(d,p)), it is shown that 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtizane (CL-20) is unstable in the presence of an alpha-particle which transfers its charge causing the cage structure of CL-20 to be destroyed. Structural factors responsible for such a destruction are investigated. It has been found that removal of a single NO2 group from the 5- or 6-membered ring of CL-20 causes cage destruction in the dication form. Although, the carbon analog of CL-20 cage is stable in double cation form (only some distortions occur), even presence of a single nitro group on its 5- or 6- membered ring causes destruction of the carbon cage in dication form. Mono and bicentric nitrogen perturbations on the carbon cage of CL-20 (excluding the bicentric perturbation case in which nitrogens are on different pentagonal rings but located symmetrically) result in destruction on double cationic charging. Dication form of CL-20 cage (retaining cage nitrogens without nitro groups) is also unstable in double cation form.


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Citation Formats
B. L. Türker, “Instability of CL-20 exposed to the effects of alpha-particle,” INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, pp. 858–866, 2015, Accessed: 00, 2020. [Online]. Available: