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Surface‐enhanced Raman spectra of acid radicals adsorbed on silver particles
Author(s) -
Chunping Zhang,
Fengqi Yu,
Guangyin Zhang
Publication year - 1989
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.1250200707
Subject(s) - raman spectroscopy , lone pair , chemistry , ion , adsorption , metal , radical , surface enhanced raman spectroscopy , inorganic chemistry , spectral line , photochemistry , molecule , raman scattering , organic chemistry , physics , astronomy , optics
The surface‐enhanced Raman spectra of NO 3 − and B(OH) 4 − were obtained by adding metal ions to a silver sol containing these anions, and the enhancement factor was estimated to be 10 4 ‐10 5 for NO 3 − . We think this is because metal ions form a complex compound with NO 3 − on the surface of the silver particles, leading to the formation of an O–Ag bond via the lone pair of electrons of the NO 3 − . The Raman spectrum of this bond has been observed. In addition, a tentative method for testing for trace ions is proposed.