The electrochemistry of 1-(p-dimethyl amino phenyl)-3-phenyl urea(H-H Urea) and two other  compounds in methylene chloride are being investigated using Cyclic Voltammetry. These other compounds are variations of this Urea in which the N-H 's are substituted by either one methyl group (Me-H Urea) or two methyl groups (Me-Me Urea). In the H-H and Me-Me Urea cyclic voltammagrams we observe a single reversible oxidation wave. However in the case of Me-H Urea, we observe a single irreversible oxidation wave. This can be explained by kinetic effects consistent with a square-scheme mechanism in which the radical cation undergoes some type of reaction to make a more stable conformation. Differences are observed in the presence of different electrolyte anions suggesting it may be due to hydrogen bonding between the compound and electrolyte anion.

Could significant differences in cyclic voltammetry of a series of dimethyl amino substituted phenyl ureas be explained by hydrogen bonding?

243rd National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.