Aurophilic Interactions in Multi-Radical Species: Electronic-Spin and Redox Properties of Bis- and Tris-[(Nitronyl Nitroxide)-Gold(I)] Complexes with Phosphine-Ligand Scaffolds.

Autor: Kira S; Graduate School of Science, Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan., Miyamae T; Graduate School of Science, Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan., Yoshida K; Graduate School of Science, Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan., Kanzaki Y; Graduate School of Science, Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan., Sugisaki K; Graduate School of Science, Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan., Shiomi D; Graduate School of Science, Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan., Sato K; Graduate School of Science, Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan., Takui T; Graduate School of Science, Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan., Suzuki S; Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan., Kozaki M; Graduate School of Science, Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan.; Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA), Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan., Okada K; Graduate School of Science, Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan.; Osaka City University Advanced Research Institute for Natural Science and Technology (OCARINA), Osaka City University Sumiyoshi-ku, Osaka, Osaka 558-8585, Japan.
Jazyk: angličtina
Zdroj: Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2021 Aug 05; Vol. 27 (44), pp. 11450-11457. Date of Electronic Publication: 2021 Jun 28.
DOI: 10.1002/chem.202101483
Abstrakt: Multinuclear Au I complexes with two or three nitronyl nitroxide-2-ide radical anion and phosphine-ligand scaffolds, (NN-Au) 2 -1 o, (NN-Au) 2 -1 m, and (NN-Au) 2 -1 p, have been synthesized to investigate the influence of Au I -Au I (aurophilic) interactions on the properties of multispin molecular systems. The desired complexes were successfully prepared in moderate yields in a one-pot synthesis from the corresponding phosphine ligand, Au I source, parent NN, and sodium hydroxide. Among the prepared complexes, (NN-Au) 2 -1 o, in which an aurophilic interaction was clearly observed by crystal structure analysis, showed characteristic spin-spin interactions, electrochemical properties, and solvatochromic behavior. The results from theoretical calculations also suggested that the differences in properties between complex (NN-Au) 2 -1 o and the other complexes are due to intramolecular aurophilic interactions.
(© 2021 Wiley-VCH GmbH.)
Databáze: MEDLINE
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