Abstract
Surface-enhanced Raman spectroelectrochemical (SERS) investigations of cyanamide, cyanoacetamide and malononitrile interaction with a roughened gold electrode were undertaken. The reagents were readily adsorbed on the surface and large shifts in the C≡N stretch band were observed on adsorption. The C≡N frequency underwent Stark tuning as the potential was scanned and, at high potentials, bands consistent with an oxidized gold complex were observed. It did not appear that the cyano functional group dissociated from the ligands and, together with the large shift in the C≡N stretch frequency on adsorption, this is indicative of π-type coordination. The 1st and subsequent voltammetric cycles in the malononitrile system showed quite different characteristics, indicative of bonding of only one of the two nitriles of the molecule to the gold surface during the 1st oxidation sweep, followed by bonding of both the nitriles in subsequent sweeps.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
