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Yamamoto K, Kimura S, Murahashi T. σ-π Continuum in Indole-Palladium(II) Complexes. Angew Chem Int Ed Engl. 2016;55(17):5322-6doi: 10.1002/anie.201601992.
Yamamoto, K., Kimura, S., & Murahashi, T. (2016). σ-π Continuum in Indole-Palladium(II) Complexes. Angewandte Chemie (International ed. in English), 55(17), 5322-6. https://doi.org/10.1002/anie.201601992
Yamamoto, Koji, et al. "σ-π Continuum in Indole-Palladium(II) Complexes." Angewandte Chemie (International ed. in English) vol. 55,17 (2016): 5322-6. doi: https://doi.org/10.1002/anie.201601992
Yamamoto K, Kimura S, Murahashi T. σ-π Continuum in Indole-Palladium(II) Complexes. Angew Chem Int Ed Engl. 2016 Apr 18;55(17):5322-6. doi: 10.1002/anie.201601992. Epub 2016 Mar 23. PMID: 27008579.
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Angew Chem Int Ed Engl. 2016 Apr 18;55(17):5322-6. doi: 10.1002/anie.201601992. Epub 2016 Mar 23.

σ-π Continuum in Indole-Palladium(II) Complexes.

Angewandte Chemie (International ed. in English)

Koji Yamamoto, Seita Kimura, Tetsuro Murahashi

Affiliations

  1. Research Center of Integrative Molecular Systems (CIMoS), Institute for Molecular Science, Myodaiji, Okazaki, Aichi, 444-8787, Japan.
  2. Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka, 565-0871, Japan.
  3. Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8552, Japan. [email protected].

PMID: 27008579 DOI: 10.1002/anie.201601992

Abstract

The intrinsic features of (hetero-arene)-metal interactions have been elusive mainly because the systematic structure analysis of non-anchored hetero-arene-metal complexes has been hampered by their labile nature. We report successful isolation and systematic structure analysis of a series of non-anchored indole-palladium(II) complexes. It was revealed that there is a σ-π continuum for the indole-metal interaction, while it has been thought that the dominant coordination mode of indole to a metal center is the Wheland-intermediate-type σ-mode in light of the seemingly strong electron-donating ability of indole. Several factors which affect the σ- or π-character of indole-metal interactions are discussed.

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

Keywords: indoles; palladium; π-complexes; σ-complexes; σ-π continuum

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