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The nature of multiple boron-nitrogen bonds studied using electron localization function (ELF), electron density (AIM), and natural bond orbital (NBO) methods by Grzegorz Mierzwa; Agnieszka J. Gordon; Slawomir Berski is a Chemistry article available to read on EtoBox.

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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) 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. Graphical abstract. ## Electronic supplementary material The online version of this article (10.1007/s00894-020-04374-9) contains s

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Author

Grzegorz Mierzwa; Agnieszka J. Gordon; Slawomir Berski

Publisher

Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC (ISSN 1610-2940)

Published

2020

Language

EN

Field

Chemistry (Physical Sciences)