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Issue 22, 2019
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Multiple local σ-aromaticity of nonagermanide clusters

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Abstract

Nonagermanide clusters are widely used in inorganic synthesis and are actively studied by experimentalists and theoreticians. However, chemical bonding of such versatile species is still not completely understood. In our work we deciphered a bonding pattern for various experimentally obtained nonagermanide species. We localized the electron density via the AdNDP algorithm for the model structures ([Ge9]4−, [Ge9{P(NH2)2}3], Cu[Ge9{P(NH2)2}3] and Cu(NHC)[Ge9{P(NH2)2}3]) and obtained a simple and chemically intuitive bonding pattern which can explain the variety of active sites and the existence of both D3h and C4v geometries for such clusters. Moreover, the [Ge9]4− core is found to be a unique example of an inorganic Zintl cluster with multiple local σ-aromaticity.

Graphical abstract: Multiple local σ-aromaticity of nonagermanide clusters

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Supplementary files

Article information


Submitted
22 Feb 2019
Accepted
25 Apr 2019
First published
29 Apr 2019

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2019,10, 5761-5765
Article type
Edge Article

Multiple local σ-aromaticity of nonagermanide clusters

N. V. Tkachenko and A. I. Boldyrev, Chem. Sci., 2019, 10, 5761
DOI: 10.1039/C9SC00929A

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