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SERS of cytosine and its methylated derivatives on metal colloids
Author(s) -
ŚanchezCortés S.,
GarciaRamos J. V.
Publication year - 1992
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250230108
Subject(s) - cytosine , metal , chemistry , raman spectroscopy , molecule , colloid , copper , inorganic chemistry , photochemistry , organic chemistry , dna , biochemistry , optics , physics
SERS spectra of cytosine, 1‐methylcytosine, 5‐methylcytosine and 1,5‐dimethylcytosine on silver and on copper colloids are reported. A study of the influence of pH on the normal Raman spectra of these compounds was made in order to understand better the behaviour of these molecules on metal surfaces. The results obtained indicate remarkable changes in the type of adsorbate—metal interactions depending on the metal used as the SERS support. These interactions are also influenced by the presence of methyl groups in the cytosine molecule.