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Rüger J, Timmermann C, Villinger A, et al. Minimalistic Ditopic Ligands: An α-S,N-Donor-Substituted Alkyne as Effective Intermetallic Conjugation Linker. Chemistry. 2016;22(32):11191-5doi: 10.1002/chem.201601403.
Rüger, J., Timmermann, C., Villinger, A., Hinz, A., Hollmann, D., & Seidel, W. W. (2016). Minimalistic Ditopic Ligands: An α-S,N-Donor-Substituted Alkyne as Effective Intermetallic Conjugation Linker. Chemistry (Weinheim an der Bergstrasse, Germany), 22(32), 11191-5. https://doi.org/10.1002/chem.201601403
Rüger, Julia, et al. "Minimalistic Ditopic Ligands: An α-S,N-Donor-Substituted Alkyne as Effective Intermetallic Conjugation Linker." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 22,32 (2016): 11191-5. doi: https://doi.org/10.1002/chem.201601403
Rüger J, Timmermann C, Villinger A, Hinz A, Hollmann D, Seidel WW. Minimalistic Ditopic Ligands: An α-S,N-Donor-Substituted Alkyne as Effective Intermetallic Conjugation Linker. Chemistry. 2016 Aug 01;22(32):11191-5. doi: 10.1002/chem.201601403. Epub 2016 Jun 30. PMID: 27272102.
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Chemistry. 2016 Aug 01;22(32):11191-5. doi: 10.1002/chem.201601403. Epub 2016 Jun 30.

Minimalistic Ditopic Ligands: An α-S,N-Donor-Substituted Alkyne as Effective Intermetallic Conjugation Linker.

Chemistry (Weinheim an der Bergstrasse, Germany)

Julia Rüger, Christopher Timmermann, Alexander Villinger, Alexander Hinz, Dirk Hollmann, Wolfram W Seidel

Affiliations

  1. Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059, Rostock, Germany.
  2. Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany.
  3. Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, 18059, Rostock, Germany. [email protected].

PMID: 27272102 DOI: 10.1002/chem.201601403

Abstract

The capability of donor-substituted alkynes to link different metal ions in a side-on carbon donor-chelate coordination mode is extended from the donor centers S and P to the second period element N. The complex [Tp'W(CO)2 {η(2) -C2 (S)(NHBn)}] (Tp'=hydrido-tris(3,5-dimethylpyrazolyl)borate, Bn=benzyl) bearing a terminal sulfur atom and a secondary amine substituent is accessible by a metal-template synthesis. Subsequent deprotonation allowed the formation of remarkably stable heterobimetallic complexes with the [(η(5) -C5 H5 )Ru(PPh3 )] and the [Ir(ppy)2 ] moiety. Electrochemical and spectroscopic investigations (cyclic voltammetry, IR, UV/Vis, luminescence, EPR), as well as DFT calculations, and X-ray structure determinations of the W-Ru complex in two oxidation states reveal a strong metal-metal coupling but also a limited delocalization of excited states.

© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Keywords: alkynes; heterometallic complexes; ligand design; metal-metal interactions; template synthesis

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