Publication Date:
2002
abstract:
A Surface-Enhanced Raman Spectroscopy (SERS) study on self-assembled
mercapto-aldehyde derivative4-(methylmercapto)benzaldehyde (SBZA)is
reported. This molecule was adsorbed onto silver surface, previously
roughened to give SERS effect. The spectroscopic characterization of the
adsorbed layer has shown a complete chemisorption of each molecule along
with the presence of free aldehydic functionality. It is a group able to
interact in several different reactions. In this connection, we have also
discussed a condensation reaction between the aldehyde group of SBZA,
adsorbed onto silver, with pyrrole. These dipyrroil derivatives immobilized
in thin films have been recently found to be active coatings in chemical
recognition of alcohol vapours.
Iris type:
01.01 Articolo in rivista