TY - JOUR
T1 - Surface enhanced raman and resonance raman spectroscopy in a non-aqueous electrochemical environment
T2 - Tris(2,2′-bipyridine)ruthenium(II) adsorbed on silver from acetonitrile
AU - Stacy, A. A.
AU - Van Duyne, R. P.
N1 - Funding Information:
The authors would like to thank J.P. Haushalter, J-M. Lakovits. and A.B. Apkarian for many useful discissions and for esperimental assistance.T he observation by J-P. Haushalter and R.P. van Duyne that Ru(bpy)p adsorbso n GaAs from acetonitrile initiated thesee xperiments [ 171. This researchw as supported by the National Science Foundation (Grant Nos. CHE7S-24866 and CHESZ05SOl) and the Office of Naval Research( Contract No. NO001479-C-0794).
PY - 1983/11/25
Y1 - 1983/11/25
N2 - This letter reports the first observation of both surface enhanced Raman scattering (SERS) and surface enhanced resonance Raman scattering (SERRS) from the transition metal complex tris(2,2′-bipyridine)ruthenium (II), Ru(bpy)32+, adsorbed on a silver electrode from acetonitrile (ACN). The assignment of these spectra as valid examples of SERS and SERRS in a non-aqueous environment is based on the following criteria: (1) in situ demonstration of monolayer surface coverage of Ru(bpy)32+ using double potential step chronocoulometry (DPSCC); (2) the Raman signals are most intense after surface roughening by anodization; (3) the Raman spectra are potential dependent in the non-faradaic potential region; (4) the measured enhancement factors are greater ilian 106; (5) the surface spectra are frequency shifted relative to their bulk counterpart; and (6) several other molecules also exhibit non-aqueous SERS and SERRS behavior. These results are highly significant in that generality of surface enhanced Raman spectroscopy has been extended into the rich domain of nonaqueous electrochemistry.
AB - This letter reports the first observation of both surface enhanced Raman scattering (SERS) and surface enhanced resonance Raman scattering (SERRS) from the transition metal complex tris(2,2′-bipyridine)ruthenium (II), Ru(bpy)32+, adsorbed on a silver electrode from acetonitrile (ACN). The assignment of these spectra as valid examples of SERS and SERRS in a non-aqueous environment is based on the following criteria: (1) in situ demonstration of monolayer surface coverage of Ru(bpy)32+ using double potential step chronocoulometry (DPSCC); (2) the Raman signals are most intense after surface roughening by anodization; (3) the Raman spectra are potential dependent in the non-faradaic potential region; (4) the measured enhancement factors are greater ilian 106; (5) the surface spectra are frequency shifted relative to their bulk counterpart; and (6) several other molecules also exhibit non-aqueous SERS and SERRS behavior. These results are highly significant in that generality of surface enhanced Raman spectroscopy has been extended into the rich domain of nonaqueous electrochemistry.
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U2 - 10.1016/0009-2614(83)87057-2
DO - 10.1016/0009-2614(83)87057-2
M3 - Article
AN - SCOPUS:0000254032
SN - 0009-2614
VL - 102
SP - 365
EP - 370
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4
ER -