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Dinuclear gold(I) Complexes with Bidentate NHC Ligands as Precursors for Alkynyl Complexes via Mechanochemistry

The use of alkynyl gold(I) complexes covers different research fields, such as bioinorganic chemistry, catalysis, and material science, considering the luminescent properties of the complexes. Regarding this last application, we report here the synthesis of three novel dinuclear gold(I) complexes of...

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Autores principales: Stoppa, Valentina, Battistel, Edoardo, Baron, Marco, Sgarbossa, Paolo, Biffis, Andrea, Bottaro, Gregorio, Armelao, Lidia, Tubaro, Cristina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268586/
https://www.ncbi.nlm.nih.gov/pubmed/35807560
http://dx.doi.org/10.3390/molecules27134317
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author Stoppa, Valentina
Battistel, Edoardo
Baron, Marco
Sgarbossa, Paolo
Biffis, Andrea
Bottaro, Gregorio
Armelao, Lidia
Tubaro, Cristina
author_facet Stoppa, Valentina
Battistel, Edoardo
Baron, Marco
Sgarbossa, Paolo
Biffis, Andrea
Bottaro, Gregorio
Armelao, Lidia
Tubaro, Cristina
author_sort Stoppa, Valentina
collection PubMed
description The use of alkynyl gold(I) complexes covers different research fields, such as bioinorganic chemistry, catalysis, and material science, considering the luminescent properties of the complexes. Regarding this last application, we report here the synthesis of three novel dinuclear gold(I) complexes of the general formula [(diNHC)(Au-C≡CPh)(2)]: two Au-C≡CPh units are connected by a bridging di(N-heterocyclic carbene) ligand, which should favor the establishment of semi-supported aurophilic interactions. The complexes can be easily synthesized through mechanochemistry upon reacting the pristine dibromido complexes [(diNHC)(AuBr)(2)] with phenylacetylene and KOH. Interestingly, we were also able to isolate the monosubstituted complex [(diNHC)(Au-C≡CPh)(AuBr)]. The gold(I) species were fully characterized by multinuclear NMR spectroscopy and mass spectrometry. The emission properties were also evaluated, and the salient data are comparable to those of analogous compounds reported in the literature.
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spelling pubmed-92685862022-07-09 Dinuclear gold(I) Complexes with Bidentate NHC Ligands as Precursors for Alkynyl Complexes via Mechanochemistry Stoppa, Valentina Battistel, Edoardo Baron, Marco Sgarbossa, Paolo Biffis, Andrea Bottaro, Gregorio Armelao, Lidia Tubaro, Cristina Molecules Article The use of alkynyl gold(I) complexes covers different research fields, such as bioinorganic chemistry, catalysis, and material science, considering the luminescent properties of the complexes. Regarding this last application, we report here the synthesis of three novel dinuclear gold(I) complexes of the general formula [(diNHC)(Au-C≡CPh)(2)]: two Au-C≡CPh units are connected by a bridging di(N-heterocyclic carbene) ligand, which should favor the establishment of semi-supported aurophilic interactions. The complexes can be easily synthesized through mechanochemistry upon reacting the pristine dibromido complexes [(diNHC)(AuBr)(2)] with phenylacetylene and KOH. Interestingly, we were also able to isolate the monosubstituted complex [(diNHC)(Au-C≡CPh)(AuBr)]. The gold(I) species were fully characterized by multinuclear NMR spectroscopy and mass spectrometry. The emission properties were also evaluated, and the salient data are comparable to those of analogous compounds reported in the literature. MDPI 2022-07-05 /pmc/articles/PMC9268586/ /pubmed/35807560 http://dx.doi.org/10.3390/molecules27134317 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Stoppa, Valentina
Battistel, Edoardo
Baron, Marco
Sgarbossa, Paolo
Biffis, Andrea
Bottaro, Gregorio
Armelao, Lidia
Tubaro, Cristina
Dinuclear gold(I) Complexes with Bidentate NHC Ligands as Precursors for Alkynyl Complexes via Mechanochemistry
title Dinuclear gold(I) Complexes with Bidentate NHC Ligands as Precursors for Alkynyl Complexes via Mechanochemistry
title_full Dinuclear gold(I) Complexes with Bidentate NHC Ligands as Precursors for Alkynyl Complexes via Mechanochemistry
title_fullStr Dinuclear gold(I) Complexes with Bidentate NHC Ligands as Precursors for Alkynyl Complexes via Mechanochemistry
title_full_unstemmed Dinuclear gold(I) Complexes with Bidentate NHC Ligands as Precursors for Alkynyl Complexes via Mechanochemistry
title_short Dinuclear gold(I) Complexes with Bidentate NHC Ligands as Precursors for Alkynyl Complexes via Mechanochemistry
title_sort dinuclear gold(i) complexes with bidentate nhc ligands as precursors for alkynyl complexes via mechanochemistry
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9268586/
https://www.ncbi.nlm.nih.gov/pubmed/35807560
http://dx.doi.org/10.3390/molecules27134317
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