Mechanochemical Synthesis of Non-Solvated Dialkylalumanyl Anion and XPS Characterization of Al(I) and Al(II) Species

Satoshi Kurumada; Ryotaro Yamanashi; Kengo Sugita; Koji Kubota; Hajime Ito; Satoru Ikemoto; Chaoqi Chen; Takumi Moriyama; Satoshi Muratsugu; Mizuki Tada; Takanori Koitaya; Taisuke Ozaki; Makoto Yamashita

doi:10.1002/chem.202303073

Mechanochemical Synthesis of Non-Solvated Dialkylalumanyl Anion and XPS Characterization of Al(I) and Al(II) Species

Chemistry. 2024 Feb 1;30(7):e202303073. doi: 10.1002/chem.202303073. Epub 2023 Dec 11.

Authors

Satoshi Kurumada¹, Ryotaro Yamanashi¹, Kengo Sugita¹, Koji Kubota^{2

3}, Hajime Ito^{2

3}, Satoru Ikemoto⁴, Chaoqi Chen⁴, Takumi Moriyama⁴, Satoshi Muratsugu^{4

5}, Mizuki Tada^{4

5

6}, Takanori Koitaya⁷, Taisuke Ozaki⁸, Makoto Yamashita^{1

5}

Affiliations

¹ Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan.
² Division of Applied Chemistry, Graduate School of Engineering, Hokkaido University, 060-8628, Sapporo, Hokkaido, Japan.
³ Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, 060-8628, Sapporo, Hokkaido, Japan.
⁴ Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, 464-8603, Nagoya, Aichi, Japan.
⁵ Integrated Research Consortium on Chemical Science (IRCCS), Nagoya University, Furo-cho, Chikusa-ku, 464-8602, Nagoya, Aichi, Japan.
⁶ Research Center for Materials Science (RCMS), Nagoya University, Furo-cho, Chikusa-ku, 464-8602, Nagoya, Aichi, Japan.
⁷ Department of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, 606-8502, Kyoto, Japan.
⁸ The Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, 277-8581, Kashiwa, Chiba, Japan.

PMID: 38018466
DOI: 10.1002/chem.202303073

Abstract

A non-solvated alkyl-substituted Al(I) anion dimer was synthesized by a reduction of haloalumane precursor using a mechanochemical method. The crystallographic and theoretical analysis revealed its structure and electronic properties. Experimental XPS analysis of the Al(I) anions with reference compounds revealed the lower Al 2p binding energy corresponds to the lower oxidation state of Al species. It should be emphasized that the experimentally obtained XPS binding energies were reproduced by delta SCF calculations and were linearly correlated with NPA charges and 2p orbital energies.

Keywords: X-ray photoelectron spectroscopy; aluminum; anion; crystallographic study; mechanochemical synthesis.

Abstract

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