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- Title
Aurophilic Interactions in Multi‐Radical Species: Electronic‐Spin and Redox Properties of Bis‐ and Tris‐[(Nitronyl Nitroxide)‐Gold(I)] Complexes with Phosphine‐Ligand Scaffolds.
- Authors
Kira, Sayaka; Miyamae, Takayuki; Yoshida, Kohei; Kanzaki, Yuki; Sugisaki, Kenji; Shiomi, Daisuke; Sato, Kazunobu; Takui, Takeji; Suzuki, Shuichi; Kozaki, Masatoshi; Okada, Keiji
- Abstract
Multinuclear AuI 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 AuI−AuI (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, AuI 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.
- Subjects
NITROXIDES; SPIN-spin interactions; RADICAL anions; OXIDATION-reduction reaction; SODIUM hydroxide; CRYSTAL structure; SPECIES
- Publication
Chemistry - A European Journal, 2021, Vol 27, Issue 44, p11450
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202101483