The surface-enhanced Raman (SER) spectra of 1 $-naphthyridine (napy) adsorbed on silver colloids were measured. An edge-on configuration for the molecule is suggested, based on a comparison of the SER spectra of napy compared with the conventional Raman spectra of two of its complexes, Ag,(p-napy),(NO,), and OsO,(napy), the former serving as a model for an edge-on configuration of napy.
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