Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Surface Enhanced Raman Spectroscopic Studies on Zn(Ⅱ) and Mn(Ⅲ) Tetrakis (4-N-Methyl Pyridyl) Porphyrins

  • Song, Ok-Keun (Spectroscopy and Color Lab., Korea Standards Research Institute) ;
  • Yoon, Min-Joong (Department of Chemistry, Chungnam National University) ;
  • Kim, Dong-Ho (Spectroscopy and Color Lab., Korea Standards Research Institute)
  • Published : 1990.08.20
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Abstract

The surface enhanced Raman scatterings of Zn(Ⅱ) tetrakis (4-N-methyl pyridyl) porphyrins were studied in silver sol. Zn(Ⅱ) tetrakis (4-N-methyl pyridyl) porphyrin was found to be adsorbed on silver surface via flat-on geometry with some inhomogeneous distribution in the orientation of pyridyl groups. Both the selective enhancement of Raman modes depending on the mode character and the theoretical arguments of SERS are utilized to support the above conclusion. The surface induced substitution reaction of Mn(Ⅲ) tetrakis (4-N-methyl pyridyl) porphyrin chloride to Ag(Ⅱ) tetrakis (4-N-methyl pyridyl) porphyrin was detected via surface enhanced Raman spectrum.

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