Abstract
The structures of three dinuclear zinc-amido complexes, involved in the very first step of the preparation of zinc oxide nanoparticles via an organometallic route, have been investigated by density functional theory computational studies. The various zinc–nitrogen and zinc–cyclohexyl bonds are finely characterized using quantum theory of atoms in molecules and electron localization function (ELF) topological analyses. The results are compared to the topological analyses of parent zinc-amido or zinc-alkyl complexes, for which an experimental structure has been already reported. The original two-component dative zinc-amido bond is unravelled by ELF topological analysis. Fukui indices condensed on the ELF basins allow for the comparison of the chemical reactivity of the three dinuclear zinc-amido complexes. The larger sensitivity to electrophilic attack of the terminal zinc-amido bonds with respect to the bridging intracyclic zinc-amido bonds or with respect to the terminal zinc–cyclohexyl bonds is evidenced.
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Acknowledgements
The theoretical studies were performed using HPC resources from CALMIP (Grant 2019 [0851]]) and from GENCI-[CINES/IDRIS] (Grant 2019 [085008]). The authors wish to acknowledge the financial support of the Centre National de la Recherche Scientifique (CNRS).
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This manuscript is dedicated to, and in memory of, the late Prof Michel Che.
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Lepetit, C., Kahn, M.L. QTAIM and ELF topological analyses of zinc-amido complexes. Res Chem Intermed 47, 377–395 (2021). https://doi.org/10.1007/s11164-020-04328-z
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DOI: https://doi.org/10.1007/s11164-020-04328-z