Gold(II) Trichloride Complex from Diclofenac‐Gold(III) Precursor

Authors:

• Rafał Frański,
• Anna Kuś,
• Wojciech Jankowski,
• Marcin Maciej Hoffmann

Abstract

In the conditions of electrospray ionization, a diclofenac-gold complex, namely the ion [DIC−H+AuCl3]− (DIC stands for diclofenac), was generated. According to the calculations, the most stable is the O−Au bond-containing structure. By subjecting the anion [DIC−H+AuCl3]− to the collision-induced dissociation, the loss of [DIC]. radical occurred and the open shell anion [AuCl3]− was formed with the unprecedentedly high efficiency. The observed gas-phase behavior of the Au(III)-diclofenac complex was analogical to that of the diclofenac complexes with metals (Fe(III) and Cu(II)), which are easily reduced in the gas phase, although the process Au(III)→Au(II) is rather unusual.