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dc.creatorStidham, Howard D.en_US
dc.creatorHarris, Scott M.en_US
dc.date.accessioned2006-06-15T14:48:50Z
dc.date.available2006-06-15T14:48:50Z
dc.date.issued1983en_US
dc.identifier1983-RG-07en_US
dc.identifier.urihttp://hdl.handle.net/1811/11919
dc.descriptionAuthor Institution: Department of Chemistry, University of Massachusetts Amhersten_US
dc.description.abstractDepolarization ratios of surface enhanced Raman scattering (SERS) active fundamentals of pyridine in acqueous sodium borohydride generated silver sols are reported for a number of different pyridine concentrations. Observed depolarization ratios fluctuate substantially in intervals of time short compared with the time required to complete depolarization ratio measurements. These ratios are between 1 and 1/3, are essentially the same for all SERS active pyridine vibrations in a particular preparation, and evolve in time toward a limiting value of 1/3. Dispersion of polarization which evolves in time is found in the so-called molecule-metal stretching vibration found near $225 cm^{-1}$. A simple physical model of the scattering process is suggested which accords closely enough with these facts to be useful while retaining sufficient simplicity to allow qualitative insight into the behaviour of these complex colloidal systems.en_US
dc.format.extent87523 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleAQUEOUS PYRIDINE BOROHYDRIDE-SILVER SOLS. I. DEPOLARIZATION RATIOS AND POLARIZATION DISPERSIONen_US
dc.typearticleen_US


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