Acceleration of Metal Ion Incorporation into Cationic Porphyrin by 5-Sulfo-8-quinolinol, and Spectrophotometric Determination of Nickel(II)
| Autor: | Shukuro Igarashi, Kunio Kawamura, Takao Yotsuyanagi |
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| Rok vydání: | 2005 |
| Předmět: |
medicine.diagnostic_test
Metal ions in aqueous solution Inorganic chemistry Cationic polymerization Nanochemistry chemistry.chemical_element Photochemistry Porphyrin Analytical Chemistry Metal Hydrophobic effect Nickel chemistry.chemical_compound chemistry visual_art Spectrophotometry visual_art.visual_art_medium medicine |
| Zdroj: | Microchimica Acta. 153:145-150 |
| ISSN: | 1436-5073 0026-3672 |
| DOI: | 10.1007/s00604-005-0458-9 |
| Popis: | The incorporation of metal ions into 5,10,15,20-tetrakis(4-N-methylpyridyl)porphine (TMPYP) were significantly accelerated by 5-sulfo-8-quinolinol (SQN). The formation of Ni–TMPYP was completed within 5 min at 100 °C. Based on the comparison of the acceleration effect of SQN with 8-quinolinol (QN), it was deduced that the acceleration of the incorporation reaction is mainly due to the enhancement of the formation of the outer-sphere associate of Ni(II)–SQN complex with TMPYP, in which the association is enhanced by both electrostatic and hydrophobic interactions between TMPYP and Ni(II)–SQN. This finding was applied to the spectrophotometric determination of Ni(II). |
| Databáze: | OpenAIRE |
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