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Назив: The nature of the Au-N bond in gold(III) complexes with aromatic nitrogen-containing heterocycles: The influence of Au(III) ions on the ligand aromaticity
Аутори: Radenkovic, Slavko
Antić, Marija
Savić, Nada
Glišić, Biljana
Датум издавања: 2017
Сажетак: © 2017 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique. In this work, the nature of the bonding interaction between Au(iii) ion and aromatic nitrogen-containing heterocycles (N-heterocycles) in a series of Au(iii) complexes was studied by means of the natural bond orbital (NBO), atoms in molecule (AIM), charge decomposition analysis (CDA) and energy decomposition analysis (EDA) methods at the B3LYP/cc-pVTZ + LanL2TZ(f) level of theory. It was found that the Au-N coordinative bond has a higher electrostatic than covalent character. The studied N-heterocycles were found to be strong σ-electron donors, but rather weak π-electron acceptors. In addition, the local aromatic distribution in the studied N-heterocycles, and in their Au(iii) complexes, was quantified through several different aromaticity indices: the six center delocalization index (SCI), the harmonic oscillator model of aromaticity (HOMA) index and the nucleus-independent chemical shifts (NICS). It was shown that the aromatic character of the nitrogen-containing ring in gold(iii) complexes is decreased in comparison with the same ring of uncoordinated ligands.
URI: https://scidar.kg.ac.rs/handle/123456789/11574
Тип: article
DOI: 10.1039/c7nj02634j
ISSN: 1144-0546
SCOPUS: 2-s2.0-85032572917
Налази се у колекцијама:Faculty of Science, Kragujevac
Institute for Information Technologies, Kragujevac

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