Gold(II) Trichloride Complex from Diclofenac‐Gold(III) Precursor. Issue 41 (2nd November 2021)

• Record Type: Journal Article
• Authors: Frański, Rafał; Kuś, Anna; Jankowski, Wojciech; Hoffmann, Marcin
• Is Part Of: ChemistrySelect. Volume 6:Issue 41(2021)
• Page Start: 11198
• Page End: 11200
• Publication Date: 2021-11-02
• Subjects: diclofenac -- gas phase -- gold(II) -- mass spectrometry; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.202103539
• Languages: English
• ISSNs: 2365-6549

Abstract

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. Abstract : AuCl2 and [AuCl3 ] − are elusive Au(II)‐containing species, which can exist only in the gas phase. Although they were studied in details by computational methods, the effective methods of their generation in the gas phase still need to be developed. As follows from our studies, the anion [AuCl3 ] − can be formed abundantly from the diclofenac‐Au(III) complex, namely from [DIC−H+AuCl3 ] − .