Title

Realization of Lewis Basic Sodium Anion in the NaBH3− Cluster

Document Type

Article

Journal/Book Title

Angewandte Chemie International Edition

Publication Date

7-16-2019

Publisher

Wiley‐VCH Verlag GmbH & Co. KGaA

Award Number

NSF, Division of Chemistry (CHE) 1664379

Funder

NSF, Division of Chemistry (CHE)

Volume

58

Issue

39

First Page

13789

Last Page

13793

Abstract

We report a Na:−→B dative bond in the NaBH3 cluster, which was designed on the principle of minimum‐energy rupture, prepared by laser vaporization, and characterized by a synergy of anion photoelectron spectroscopy and electronic structure calculations. The global minimum of NaBH3 features a Na−B bond. Its preferred heterolytic dissociation conforms with the IUPAC definition of dative bond. The lone electron pair revealed on Na and the negative Laplacian of electron density at the bond critical point further confirm the dative nature of the Na−B bond. This study represents the first example of a Lewis adduct with an alkalide as the Lewis base.

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