| Autor: |
Xie, Lily Yun, Dolphin, David |
| Zdroj: |
Canadian Journal of Chemistry; December 1995, Vol. 73 Issue: 12 p2148-2152, 5p |
| Abstrakt: |
The porphocyanine nucleus contains six nitrogen atoms, four of which are theoretically capable of accepting a proton in acidic solution. However, only the monoprotonated and diprotonated forms have been observed. These two forms were characterized by their visible and fluorescence spectra. pKavalues of 6.0 ± 0.1 and 4.4 ± 0.1 were determined by spectrophotometric titration. The monoprotonated monocationic form can be observed in methanol. Keywords: porphocyanine, protonation, octaethylporphocyanine, octaethylporphyrin. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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