AI Article Synopsis
- Researchers studied how low-frequency vibrations (under 300 cm) occur between gold surfaces and halide ions in water using surface-enhanced Raman spectroscopy (SERS).
- The experiments focused on salts like NaF, NaCl, NaBr, and NaI, showing that the Raman shifts correspond to the strength of the gold-halide interactions.
- These findings provide new insights into how nanoparticles aggregate in water, potentially impacting future studies in aqueous environments.
Article Abstract
Low-frequency (<300 cm ) vibrational interactions between gold surfaces and dissolved halides in water were investigated by surface-enhanced Raman spectroscopy (SERS). Experiments with NaF, NaCl, NaBr, and NaI salts indicate that the Raman shifts of the Au-X SERS bands correlate with the bond strength of the corresponding covalent interaction. These low-frequency SERS bands open up new means to investigate the aggregation of nanoparticles in aqueous environments.
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| http://dx.doi.org/10.1002/cphc.201700798 | DOI Listing |
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