Department of Chemistry
A near-infrared fluorescent chemodosimeter for silver(I) ion based on an expanded porphyrin
An expanded porphyrin hexaphyrin(22.214.171.124.1.1) was exploited as a fluorescent chemodosimeter for Ag+ ions with high sensitivity and selectivity via near-infrared luminescence above 900 nm, a region that is free from optical interference in the visible wavelength range induced by the commonly used matrix and other organic compounds. The association constant for the Ag+-porphyrin complexation was evaluated by spectroscopic titration method to be 7.24 × 1010 M-1. © 2008 Elsevier Ltd. All rights reserved.
Luminescence, Porphyrins, Sensors, Silver, Transition metals
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Zhu, Xunjin, Shitao Fu, Wai-Kwok Wong, and Wai-Yeung Wong. "A near-infrared fluorescent chemodosimeter for silver(I) ion based on an expanded porphyrin." Tetrahedron Letters 49.11 (2008): 1843-1846.