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All-nitrogen cages and molecular crystals: Topological rules, stability, and pyrolysis paths

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dc.contributor.authorKochaev, A. I.
dc.contributor.authorKaya, S.
dc.contributor.authorKatin, K. P.
dc.contributor.authorMerinov, V. B.
dc.contributor.authorMaslov, M. M.
dc.contributor.authorКатин, Константин Петрович
dc.contributor.authorМеринов, Валерий Борисович
dc.contributor.authorМаслов, Михаил Михайлович
dc.date.accessioned2024-11-27T09:50:15Z
dc.date.available2024-11-27T09:50:15Z
dc.date.issued2020
dc.description.abstract© 2020 by the authors. Licensee MDPI, Basel, Switzerland.We combined ab initio molecular dynamics with the intrinsic reaction coordinate in order to investigate the mechanisms of stability and pyrolysis of N4 ÷ N120 fullerene-like nitrogen cages. The stability of the cages was evaluated in terms of the activation barriers and the activation Gibbs energies of their thermal-induced breaking. We found that binding energies, bond lengths, and quantum-mechanical descriptors failed to predict the stability of the cages. However, we derived a simple topological rule that adjacent hexagons on the cage surface resulted in its instability. For this reason, the number of stable nitrogen cages is significantly restricted in comparison with their carbon counterparts. As a rule, smaller clusters are more stable, whereas the earlier proposed large cages collapse at room temperature. The most stable all-nitrogen cages are the N4 and N6 clusters, which can form the van der Waals crystals with densities of 1.23 and 1.36 g/cm3, respectively. The examination of their band structures and densities of electronic states shows that they are both insulators. Their power and sensitivity are not inferior to the modern advanced high-energy nanosystems.
dc.format.extentС. 1-13
dc.identifier.citationAll-nitrogen cages and molecular crystals: Topological rules, stability, and pyrolysis paths / Kochaev, A.I. [et al.] // Computation. - 2020. - 8. - № 4. - P. 1-13. - 10.3390/computation8040091
dc.identifier.doi10.3390/computation8040091
dc.identifier.urihttps://www.doi.org/10.3390/computation8040091
dc.identifier.urihttps://www.scopus.com/record/display.uri?eid=2-s2.0-85096061664&origin=resultslist
dc.identifier.urihttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=Alerting&SrcApp=Alerting&DestApp=WOS_CPL&DestLinkType=FullRecord&UT=WOS:000601485900001
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/22571
dc.relation.ispartofComputation
dc.titleAll-nitrogen cages and molecular crystals: Topological rules, stability, and pyrolysis paths
dc.typeArticle
dspace.entity.typePublication
oaire.citation.issue4
oaire.citation.volume8
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