This paper accounts for a general procedure of bonding analysis that is, expectedly, adequate to describe any type of interaction involving the noble-gas (Ng) atoms. Building on our recently proposed classification of the Ng–X bonds (X = binding partner) [New J. Chem. 44, 15536 (2020)], these contacts are first distinguished into three types, namely, A, B, or C, based on the topology of the electron energy density H(r) and on the shape of its plotted form. Bonds of type B or C are, then, further assigned as B-loose (Bl) or B-tight (Bt) and C-loose (Cl) or C-tight (Ct) depending on the sign that H(r) takes along the Ng–X bond path located from the topological analysis of ρ(r), particularly at around the bond critical point (BCP). Any bond of type A, Bl/Bt, or Cl/Ct is, finally, assayed in terms of contribution of covalency. This is accomplished by studying the maximum, minimum, and average value of H(r) over the volume enclosed by the low-density reduced density gradient (RDG) isosurface associated with the bond (typically, the RDG isosurface including the BCP) and the average ρ(r) over the same volume. The bond assignment is also corroborated by calculating the values of quantitative indices specifically defined for the various types of interactions (A, B, or C). The generality of our taken approach should encourage its wide application to the study of Ng compounds.
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7 January 2022
Research Article|
January 03 2022
Noble-gas compounds: A general procedure of bonding analysis Available to Purchase
Stefano Borocci;
Stefano Borocci
1
Dipartimento per la Innovazione nei sistemi Biologici, Agroalimentari e Forestali (DIBAF), Università della Tuscia, L.go dell’Università
, s.n.c., 01100 Viterbo, Italy
2
Istituto per i Sistemi Biologici del CNR
, Via Salaria, Km 29.500, Monterotondo, 00015 Rome, Italy
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Felice Grandinetti
;
Felice Grandinetti
a)
1
Dipartimento per la Innovazione nei sistemi Biologici, Agroalimentari e Forestali (DIBAF), Università della Tuscia, L.go dell’Università
, s.n.c., 01100 Viterbo, Italy
2
Istituto per i Sistemi Biologici del CNR
, Via Salaria, Km 29.500, Monterotondo, 00015 Rome, Italy
a)Author to whom correspondence should be addressed: [email protected]
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Nico Sanna
Nico Sanna
1
Dipartimento per la Innovazione nei sistemi Biologici, Agroalimentari e Forestali (DIBAF), Università della Tuscia, L.go dell’Università
, s.n.c., 01100 Viterbo, Italy
3
Istituto per la Scienza e Tecnologia dei Plasmi (ISTP) del CNR
, Via Amendola, 122/D, 70126 Bari, Italy
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Stefano Borocci
1,2
Felice Grandinetti
1,2,a)
Nico Sanna
1,3
1
Dipartimento per la Innovazione nei sistemi Biologici, Agroalimentari e Forestali (DIBAF), Università della Tuscia, L.go dell’Università
, s.n.c., 01100 Viterbo, Italy
2
Istituto per i Sistemi Biologici del CNR
, Via Salaria, Km 29.500, Monterotondo, 00015 Rome, Italy
3
Istituto per la Scienza e Tecnologia dei Plasmi (ISTP) del CNR
, Via Amendola, 122/D, 70126 Bari, Italy
a)Author to whom correspondence should be addressed: [email protected]
J. Chem. Phys. 156, 014104 (2022)
Article history
Received:
October 30 2021
Accepted:
December 09 2021
Citation
Stefano Borocci, Felice Grandinetti, Nico Sanna; Noble-gas compounds: A general procedure of bonding analysis. J. Chem. Phys. 7 January 2022; 156 (1): 014104. https://doi.org/10.1063/5.0077119
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