Tribo-Excited Chemical Reaction Using an EuIII Complex with a Stacked Anthracene Framework

Yuichi Kitagawa; Ayu Naito; Kota Aikawa; Kaori Shima; Sunao Shoji; Koji Fushimi; Yasuchika Hasegawa

doi:10.1002/chem.202104401

Tribo-Excited Chemical Reaction Using an Eu^III Complex with a Stacked Anthracene Framework

Chemistry. 2022 Mar 16;28(16):e202104401. doi: 10.1002/chem.202104401. Epub 2022 Feb 19.

Authors

Yuichi Kitagawa^{1

2}, Ayu Naito³, Kota Aikawa³, Kaori Shima³, Sunao Shoji^{1

2}, Koji Fushimi¹, Yasuchika Hasegawa^{1

2}

Affiliations

¹ Faculty of Engineering, Hokkaido University Kita-13, Nishi-8, Sapporo, Hokkaido, 060-8628, Japan.
² Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University Kita-21, Nishi-10, Sapporo, Hokkaido, 001-0021, Japan.
³ Graduate School of Chemical Sciences and Engineering, Hokkaido University, Kita-13, Nishi-8, Sapporo, Hokkaido, 060-8628, Japan.

PMID: 35106844
DOI: 10.1002/chem.202104401

Abstract

A spin-selective tribo-chemical reaction using a dinuclear lanthanide complex is demonstrated for the first time. The dinuclear complex is composed of two Eu^III ions, hexafluoroacetylacetonato ligands, and anthracene-based phosphine oxide bridges. Single-crystal analysis revealed a face-to-face-type anthracene dimer structure in the dinuclear Eu^III complex. Mechanical stimulus on the dinuclear Eu^III complex induced selective formation of oxidized anthracene. The tribo-chemical reaction is based on a characteristic energy-transfer pathway for the selective formation of an excited triplet state.

Keywords: anthracene; energy transfer; lanthanide complexes; spin-selective; tribo.