Confinement of the Pentanitrogen Cation Inside Carbon Nanotubes

Stefano Battaglia (1, 2) , Stefano Evangelisti (1) , Thierry Leininger (1) , Noelia Faginas Lago (2)

1 GMO - Groupe THEO (LCPQ)
2 UNIPG - Università degli Studi di Perugia = University of Perugia

In recent years, the field of polynitrogen chemistry has seen a sparking activity, with new outstanding theoretical and experimental results. Polynitrogen clusters are excellent candidates for high-energy density materials, but their intrinsic instability poses great challenges for the synthesis and the subsequent storage. In this work, we explore by means of quantum chemical calculations the confinement of the pentan-itrogen cation, N + 5 , inside carbon nanotubes of different diameters. The interaction of the two fragments is such that a charge transfer from the nanotube to the nitrogen cation occurs and leads to the subsequent decomposition of N + 5 , thus resulting in an overall unstable system. Nonetheless , preliminary results on the confinement of the neutral N8 chain (as the product of an N + 5 + N − 3 addition) are presented, where it is shown that the encapsulation decreases the overall energy of the complex system. Two stable N8 isomers are discussed and a first investigation on possible decomposition pathways is carried out.

Mots clés: Pentanitrogen Cation; Carbon Nanotubes; HEDM; Molecular Confinement; Polynitrogen

Domaines: Chimie théorique et/ou physique

Stefano Battaglia, Stefano Evangelisti, Thierry Leininger, Noelia Faginas Lago. Confinement of the Pentanitrogen Cation Inside Carbon Nanotubes. Osvaldo Gervasi, Beniamino Murgante, Sanjay Misra, Elena Stankova, Carmelo M. Torre, Ana Maria A.C. Rocha, David Taniar, Bernady O. Apduhan, Eufemia Tarantino, Yeonseung Ryu. Computational Science and Its Applications – ICCSA 2018., 10964, Springer, pp.579-592, 2018, Lecture Notes in Computer Science, 978-3-319-95173-7. ⟨10.1007/978-3-319-95174-4_45⟩. ⟨hal-01876551⟩