Synthesis of A Pincer-IrV Complex with A Base-Free Alumanyl Ligand and Its Application toward the Dehydrogenation of Alkanes

Shogo Morisako; Seiya Watanabe; Satoru Ikemoto; Satoshi Muratsugu; Mizuki Tada; Makoto Yamashita

doi:10.1002/anie.201909009

Synthesis of A Pincer-Ir^V Complex with A Base-Free Alumanyl Ligand and Its Application toward the Dehydrogenation of Alkanes

Angew Chem Int Ed Engl. 2019 Oct 14;58(42):15031-15035. doi: 10.1002/anie.201909009. Epub 2019 Sep 9.

Authors

Shogo Morisako¹, Seiya Watanabe², Satoru Ikemoto³, Satoshi Muratsugu³, Mizuki Tada³, Makoto Yamashita¹

Affiliations

¹ Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Aichi, Japan.
² Department of Applied Chemistry, Faculty of Science and Engineering, Chuo University, 1-13-27, Kasuga, Bunkyo-ku, 112-8551, Tokyo, Japan.
³ Department of Chemistry, Graduate School of Science & Research Center for Materials Science (RCMS) & Integrated Research Consortium on Chemical Science (IRCCS) & Institute for Advanced Science (IAS), Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Aichi, Japan.

PMID: 31397531
DOI: 10.1002/anie.201909009

Abstract

A pincer-iridium complex bearing a Lewis-base-free X-type alumanyl ligand has been synthesized. X-ray diffraction, NMR and IR spectroscopy, as well as XANES analysis confirmed its tetrahydrido-Ir^V structure and Lewis acidity at the Al center as supported by DFT calculations. The resulting complex was applied as a catalyst for the transfer dehydrogenation of cyclooctane.

Keywords: XANES; alumanyl ligands; homogeneous catalysis; iridium; pincer complex.

Grants and funding

14529307/Core Research for Evolutional Science and Technology