SURFACE-ENHANCED VIBRATIONAL-SPECTRA OF TRANS-1,2-(4-PYRIDYL) ETHYLENE AND ITS FE COMPLEX

Authors
AROCA R CORIO P RUBIM JC
Citation
R. Aroca et al., SURFACE-ENHANCED VIBRATIONAL-SPECTRA OF TRANS-1,2-(4-PYRIDYL) ETHYLENE AND ITS FE COMPLEX, Annali di chimica, 87(1-2), 1997, pp. 1-7
Citations number
18
Categorie Soggetti
Chemistry Analytical","Environmental Sciences
Journal title
Annali di chimica → ACNP
ISSN journal
00034592
Volume
87
Issue
1-2
Year of publication
1997
Pages
1 - 7
Database
ISI
SICI code
0003-4592(1997)87:1-2<1:SVOTE>2.0.ZU;2-D
Abstract
The surface-enhanced infrared (SEIR) and surface-enhanced Raman scatte ring (SERS) spectra of thin films of trans-1,2-(4-pyridyl) ethylene (B PE) and its Na-6[Fe-2(CN)(10)]BPE (FeBPE) complex deposited on silver island films are reported. Organic films of different thicknesses were deposited onto infrared transparent substrates, smooth silver films a nd silver island films to record transmission, reflection-absorption, SERS and SEIR spectra. The infrared spectra so obtained are discussed, considering the possibility of physical or chemical adsorption onto s ilver surfaces. Simple electromagnetic calculations and PM3 normal mod e analysis are used to help in the interpretation of the enhancement a nd vibrational assignment respectively.