Coordination of pyridine and piperidine by cobalt complexes of water-soluble porphyrin and phthalocyanines
摘要:
The extracoordination reactions of nitrogen-containing bases pyridine and piperidine with cobalt complexes of water-soluble porphyrin and phthalocyanines were studied. The stability constants of the axial complexes of cobalt porphyrins and cobalt phthalocyanines with pyridine and piperidine were determined.
NEW “AMPHOTERIC ION TYPE” WATER-SOLUBLE PORPHINES AS A SPECTROPHOTOMETRIC REAGENT
作者:Shukuro Igarashi、Takao Yotsuyanagi
DOI:10.1246/cl.1984.1871
日期:1984.11.5
Three kinds of new water-soluble porphines with amphoteric groups were synthesized as highly sensitive spectrophotometric reagents for metal ions. Among them, tetrakis(1-pyridinio-2-sulfoethyl)porphine was a promising reagent because it did not show any adsorption on the surface of glassware over the pH range of 2.0–12.4, or any aggregation over its concentration range up to 10−4 mol dm−3 at the pH range of 0.5–13.0.