Premium
Spectroelectrochemical Behaviour of 1,4‐Dimethoxypillar[5]arene (P5A) and its Monomer in Different Organic Solvents
Author(s) -
Wiloch Magdalena Z.,
Kuna Ewelina,
Kosiorek Sandra,
Sashuk Volodymyr,
JönssonNiedziółka Martin
Publication year - 2021
Publication title -
chemelectrochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 59
ISSN - 2196-0216
DOI - 10.1002/celc.202100257
Subject(s) - dichloromethane , acetonitrile , chemistry , monomer , cyclic voltammetry , solvent , quinone , redox , supporting electrolyte , dichloroethane , photochemistry , molecule , acceptor , voltammetry , inorganic chemistry , polymer chemistry , electrolyte , organic chemistry , electrochemistry , polymer , electrode , physics , condensed matter physics
The spectroelectrochemical response of the macrocyclic compound 1,4‐dimethoxypillar[5]arene (P5A) and its monomer 1,4‐dimethoxybenzene was investigated using cyclic voltammetry combined with UV‐Vis spectroscopy. The influence of three different aprotic solvents, acetonitrile, dichloromethane, and dichloroethane, as well as supporting electrolyte, on the anodic behaviour of P5A were studied and discussed. The results indicate that the donor‐acceptor Lewis‐type interactions between tested compounds and the solvent molecules affect the oxidation processes and thus the formal potentials ( E f ). In all solvents we see subsequent oxidation of P5A to P5A 5+ followed at higher potential by an irreversible oxidation to the corresponding quinone. The results also show that small amounts of water can significantly influence the redox behaviour of the P5A.