Electrosynthesis of Unique AgII Fluoride Quantum Antiferromagnets in Anhydrous HF. Issue 33 (7th August 2020)

• Record Type: Journal Article
• Authors: Połczyński, Piotr; Jurczakowski, Rafał; Mazej, Zoran; Dobrzycki, Łukasz; Grzelak, Adam; Grochala, Wojciech
• Is Part Of: European journal of inorganic chemistry. Issue 33(2020)
• Page Start: 3151
• Page End: 3157
• Publication Date: 2020-08-07
• Subjects: Divalent Silver -- Electrosynthesis -- Oxidation -- Boron‐doped materials -- Electrochemical impedance spectroscopy -- Antiferromagnets; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.202000363
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract : The first successful electrosynthesis of polycrystalline Ag II FBF4 and single crystalline Ag II F2 in both galvanostatic and potentiostatic conditions was achieved at the Boron‐Doped Diamond electrode in anhydrous hydrogen fluoride. Silver(I) oxidation and the F2 evolution reactions are well separated in the potential scale. Temperature of performing electrosynthesis as well as BF3 overpressure were found to be key variables of the process. Impedance spectroscopy measurements provided insight into the mechanism of formation of silver(II) fluorides pointing out to the presence of HF‐soluble Ag(BF4 )2 intermediate. The phase purity of the products was determined by X‐ray diffraction. Abstract : Electrosynthesis of divalent silver compounds, Ag II FBF4 and Ag II F2 single crystals, was performed at the Boron‐Doped Diamond electrode in anhydrous hydrogen fluoride for the first time.