Surface-Enhanced Infrared Spectral Investigations of 2,3-Bis(chloromethyl)anthracene-1,4,9,10-tetraone on Copper Nanoparticles |
| |
| Authors: | M Umadevi S Jeyaseeli M Anuratha P Vanelle T Terme |
| |
| Institution: | 1. Department of Physics , Mother Teresa Women's University , Kodaikanal , Tamil Nadu , India ums10@yahoo.com;3. Department of Physics , Mother Teresa Women's University , Kodaikanal , Tamil Nadu , India;4. Department of Chemistry , Infant Jesus College of Engineering and Technology, Vallanadu , Tirunelveli , Tamil Nadu , India;5. Laboratory of Radical Pharmaco-Chemistry , University of the Méditerranée, Faculty of Pharmacy, Bd Jean Moulin , Marseille Cedex , France |
| |
| Abstract: | ABSTRACT Surface-enhanced infrared (IR) absorption spectroscopic technique has been employed to investigate the orientation of 2,3-bis(chloromethyl)anthracene-1,4,9,10-tetraone (BCMAT) on copper nanoparticles (NPs). Copper NPs have been prepared by the chemical reduction method. The observed ring stretching modes show higher downshifts, broader bandwidths, and higher enhancement. The observed features in out-of-plane and in-plane CH deformation modes indicate that the BCMAT molecules may be adsorbed in a “flat-on” orientation on the copper NPs. The observed lower enhancement factor of the in-plane C?O deformation mode and C?O stretching mode and the higher enhancement factor of out-of-plane C?O deformation mode elucidate that the BCMAT molecules are adsorbed on the copper NPs in a “flat-on” orientation. All these observations show that BCMAT is adsorbed on copper NPs through the π-anthraquinone ring system in a “flat-on” orientation. |
| |
| Keywords: | 2 3-bis(chloromethyl)anthracene-1 4 9 10-tetraone copper nanoparticles flat-on orientation surface-enhanced infrared absorption spectroscopy |
|
|
