Photochemistry of sulfosalicylic acid in aqueous solutions

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• 作者：Pozdnyakov ; Ivan P. ; Plyusnin ; Victor F. ; Grivin ; Vjacheslav P. ; Vorobyev ; Dmitry Yu. ; Kruppa ; Aleksandr I. ; et. al.
• 关键词：Sulfosalicylic acid ; Laser flash photolysis ; Triplet&ndash ; triplet absorption ; Two-quantum processes ; Aquated electron
• 刊名：Journal of Photochemistry and Photobiology A: Chemistry
• 出版年：2004
• 出版时间：February 20, 2004
• 年：2004
• 卷：162
• 期：1
• 页码：153-162
• 全文大小：216 K

文摘

Nanosecond laser flash photolysis (XeCl, 308nm), optical spectroscopy, fluorescence, and time-resolved chemically induced nuclear polarization (CIDNP) were used to determine photophysical and photochemical processes for 5-sulfosalicylic acid dianion (HSSA²⁻) in aqueous solutions and frozen matrices. The triplet–triplet absorption (TTA) band with a maximum at 470nm was recorded under excitation in the region of the long-wave absorption band of dianion (λ_max