{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,10]],"date-time":"2026-02-10T05:47:55Z","timestamp":1770702475303,"version":"3.49.0"},"reference-count":78,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2021,11,24]],"date-time":"2021-11-24T00:00:00Z","timestamp":1637712000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Using a fairly structurally flexible and, therefore, very suitable for this type of research, superphane molecule, we demonstrate that the inclusion of a noble gas atom (Ng = He, Ne, Ar, and Kr) inside it and, thus, the formation of the Ng@superphane endohedral complex, leads to its \u2018swelling\u2019. Positive values of both the binding and strain energies prove that encapsulation and in turn \u2018swelling\u2019 of the superphane molecule is energetically unfavorable and that the Ng\u22efC interactions in the interior of the cage are destabilizing, i.e., repulsive. Additionally, negative Mayer Bond Orders indicate the antibonding nature of Ng\u22efC contacts. This result in combination with the observed Ng\u22efC bond paths shows that the presence of a bond path in the molecular graph does not necessarily prove interatomic stabilization. It is shown that the obtained conclusions do not depend on the computational methodology, i.e., the method and the basis set used. However, on the contrary, the number of bond paths may depend on the methodology. This is yet another disadvantageous finding that does not favor the treatment of bond paths on molecular graphs as indicators of chemical bonds. The Kr@superphane endohedral complex features one of the longest C\u2013C bonds ever reported (1.753 \u00c5).<\/jats:p>","DOI":"10.3390\/sym13122241","type":"journal-article","created":{"date-parts":[[2021,12,1]],"date-time":"2021-12-01T03:12:40Z","timestamp":1638328360000},"page":"2241","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Does the Presence of a Bond Path Really Mean Interatomic Stabilization? The Case of the Ng@Superphane (Ng = He, Ne, Ar, and Kr) Endohedral Complexes"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6455-051X","authenticated-orcid":false,"given":"Miros\u0142aw","family":"Jab\u0142o\u0144ski","sequence":"first","affiliation":[{"name":"Faculty of Chemistry, Nicolaus Copernicus University in Toru\u0144, Gagarina 7, 87-100 Toru\u0144, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2021,11,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Bader, R.F.W. (1990). Atoms in Molecules: A Quantum Theory, Oxford University Press.","DOI":"10.1093\/oso\/9780198551683.001.0001"},{"key":"ref_2","unstructured":"Popelier, P.L.A. (2000). Atoms in Molecules. An Introduction, Longman."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Matta, C.F., and Boyd, R.J. (2007). 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