Bulletin of the Korean Chemical Society

  • 제9권1호
  • /
  • Pages.40-44
  • /
  • 1988
  • /
  • 0253-2964(pISSN)
  • /
  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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The pH Dependence of Metal Tetrakis (4-sulfonato-phenyl) porphine Structure Probed by Raman Spectroscopy

  • Yoon Minjoong (Department of Chemistry, Chungnam National University) ;
  • Chang Jae-Rim (Optics Lab., Korea Standards Research Institute, Daedok Science Town) ;
  • Kim Dongho (Optics Lab., Korea Standards Research Institute, Daedok Science Town)
  • 발행 : 1988.02.20
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초록

The pH dependence studies of Raman spectra are reported for water-soluble free-base, Zn, Co and Cu tetrakis (4-sulfonatophenyl) porphine in pH 4, pH 7 and pH 13.9 aqueous solution. For free base porphine, the substantial differences are found in absorption and Raman spectra between pH 4 and pH 7 or pH 10 aqueous solutions due to the protonation at low pH. For Zn and Co porphyrins, the hydrolysis equilibrium constants are obtained by spectrophotometric titration experiments. The consistent shifts in Raman frequencies are found at high pH due to the hydrolysis. For Cu porphyrins, instead of hydrolysis the aggregation effect is detected at high pH through the absorption and Raman studies.

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참고문헌

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피인용 문헌

  1. New photocatalyst for allylic aliphatic C-H bond activation and degradation of organic pollutants: Schiff base Ti(IV) complexes vol.5, pp.72, 1988, https://doi.org/10.1039/c5ra07616a