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Surface-enhanced Raman spectra of the reduction product of 4-cyanopyridine on copper colloids

✍ Scribed by Candace M. Coyle; George Chumanov; Paul W. Jagodzinski

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
217 KB
Volume
29
Category
Article
ISSN
0377-0486

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✦ Synopsis

Surface-enhanced Raman spectra of 4-cyanopyridine in a copper colloid solution were collected and showed no signal due to the CyN stretching normal mode. [ 15N ] -4-Cyanopyridine was prepared and similar results were obtained. The spectra of these molecules on gold colloids contain a signal attributed to this mode. These data were interpreted as being due to a transition metal-assisted reduction of the nitrile group with the product 4aminomethylpyridine being adsorbed on the copper surface. The surface-enhanced Raman spectrum of 4aminomethylpyridine on a copper colloid is nearly identical with the spectrum collected for 4-cyanopyridine with the copper colloid.

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