The nature of multiple boron-nitrogen bonds studied using electron localization function (ELF), electron density (AIM), and natural bond orbital (NBO) methods
Journal article
Mierzwa, G., Gordon, A.J. and Berski, S. 2020. The nature of multiple boron-nitrogen bonds studied using electron localization function (ELF), electron density (AIM), and natural bond orbital (NBO) methods. Journal of Molecular Modeling. 26 (136), pp. 1-23. https://doi.org/10.1007/s00894-020-04374-9
Authors | Mierzwa, G., Gordon, A.J. and Berski, S. |
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Abstract | Local nature of the boron-nitrogen (BN) bonding with different formal multiplicities (B≡N, B=N, B-N) have been investigated for 25 experimentally established organoboron molecules in both real and the Hilbert space, using topological analysis of electron localization function (ELF), electron density (AIM), and natural bond orbital (NBO) method. Each BN bond has been represented (ELF) by the bonding disynaptic attractor V(B,N), with the basin electron population between 5.72e and 1.83e, confirming possible existence of all the three bond types. A covalent character of bonding can be associated with the dative mechanism due to the V(B,N) bonding basin formed mainly (91–96%) by the N electron density. Similarly, the NBO method shows 2-center natural orbitals, consisting largely of the hybrids from the N atom. The AIM analysis yields the features typical for shared (H(3,−1)(r) < 0) and closed-shell (∇2ρ(3,−1)(r) > 0) interactions. The delocalization indices, describing electron exchanges between B and N quantum atoms, are smaller than 1.5, even for formally very short triple B≡N bonds. |
Keywords | B-N; B=N ; B≡N; Chemical bond; Double bond; Triple bond; ELF; Electron localization; Attractor; Basin |
Year | 2020 |
Journal | Journal of Molecular Modeling |
Journal citation | 26 (136), pp. 1-23 |
Publisher | Springer |
ISSN | 1610-2940 |
0948-5023 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s00894-020-04374-9 |
Official URL | https://link.springer.com/article/10.1007/s00894-020-04374-9 |
Publication dates | |
Online | 13 May 2020 |
Publication process dates | |
Accepted | 31 Mar 2020 |
Deposited | 04 Jan 2024 |
Publisher's version | License File Access Level Open |
Output status | Published |
https://repository.canterbury.ac.uk/item/96v17/the-nature-of-multiple-boron-nitrogen-bonds-studied-using-electron-localization-function-elf-electron-density-aim-and-natural-bond-orbital-nbo-methods
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