Details

Autor(en) / Beteiligte

• Moon, So Youn
• Cha, Na Ri
• Kim, Young Hee
• Chang, Suk-Kyu

Titel

New Hg2+-Selective Chromo- and Fluoroionophore Based upon 8-Hydroxyquinoline

Ist Teil von

• Journal of organic chemistry, 2004-01, Vol.69 (1), p.181-183

Ort / Verlag

Washington, DC: American Chemical Society

Erscheinungsjahr

2004

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A new 8-hydroxyquinoline derivative having an appended boron−dipyrromethene function has been prepared, and its metal ion sensing properties were investigated. The designed compound exhibited pronounced Hg2+-selective on−off-type fluoroionophoric properties among the representative transition- and heavy-metal ions in aqueous dioxane solution. The fluorescence was efficiently quenched more than 98% with 5 equiv of Hg2+ ions, and the detection limit was found to be 5 × 10-6 M in a dioxane−water (1:3, v/v) solvent system. The ionophore also showed a selective chromogenic behavior toward Hg2+ ions by changing the color of the solution from light amber to red, which can be detected with the naked eye.