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  Arylamidoethyl-Functionalized Imidazolium Salts: Precursors for Dianionic [C,N,C]2– Carbene Ligands at a Platinum Center

Mell, B., Rust, J., Lehmann, C. W., Berger, R. J. F., Otte, D., Ertl, M., et al. (2021). Arylamidoethyl-Functionalized Imidazolium Salts: Precursors for Dianionic [C,N,C]2– Carbene Ligands at a Platinum Center. Organometallics, 40(7), 890-898. doi:10.1021/acs.organomet.1c00013.

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 Creators:
Mell, Bernd1, Author
Rust, Jörg2, Author              
Lehmann, Christian W.2, Author              
Berger, Raphael J. F. 3, Author
Otte, Daniela4, Author
Ertl, Martin4, Author
Monkowius, Uwe4, Author
Mohr, Fabian1, Author
Affiliations:
1Fakultät für Mathematik und Naturwissenschaften, Anorganische Chemie, Bergische Universität Wuppertal, Gaußstraße 20, 42119 Wuppertal, Germany, ou_persistent22              
2Service Department Lehmann (EMR), Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445625              
3Fachbereich für Chemie und Physik der Materialien, Paris-Lodron Universität Salzburg, 5020 Salzburg, Austria, ou_persistent22              
4School of Education, MINT Didactics, Chemistry, Johannes Kepler University, 4040 Linz, Austria, ou_persistent22              

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 Abstract: Arylamidoethyl-functionalized imidazolium bromides were prepared from the corresponding N-(2-bromoethyl)benzamides ArC(O)N(H)CH2CH2Br (Ar = 3-O2NC6H4, Ph, 3,4-Cl2C6H3) and 1-methylimidazole. These imidazolium salts react with PtCl2 in DMSO in the presence of a base at 100 °C to give ortho-metalated platinum(II) complexes, in which the imidazolium salt has lost a total of three protons. The resulting ligand is a tridentate, dianionic [C,N,C]2– pincer-type system, bound to the square-planar metal center through carbon atoms of the carbene and the ortho-metalated arene as well as the nitrogen atom of the amide functionality. The coordinated DMSO can be replaced by other N-heterocyclic carbenes, resulting in the formation of both homo- and heteroleptic bis(carbene) platinum(II) complexes. The molecular structures and photophysical properties of the complexes are reported. High-level computational methods were used to elucidate the electronic structures of the complexes.

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Language(s): eng - English
 Dates: 2021-01-082021-03-182021-04-12
 Publication Status: Published in print
 Pages: 9
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/acs.organomet.1c00013
 Degree: -

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Title: Organometallics
  Other : Organometallics
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Chemical Society
Pages: - Volume / Issue: 40 (7) Sequence Number: - Start / End Page: 890 - 898 Identifier: ISSN: 0276-7333
CoNE: https://pure.mpg.de/cone/journals/resource/954925505259