Title of article :
A selective, sensitive probe for mercury(II) ions based on oxazine-thione
Author/Authors :
Zhang، نويسنده , , Qian-Qian and Ge، نويسنده , , Jian-Feng and Xu، نويسنده , , Qingfeng and Yang، نويسنده , , Xue-Bo and Cao، نويسنده , , Xueqin and Li، نويسنده , , Na-Jun and Lu، نويسنده , , Jian-Mei، نويسنده ,
Issue Information :
هفته نامه با شماره پیاپی سال 2011
Abstract :
A selective, sensitive probe for Hg(II) ions, 7-(diethylamino)-3-methyl-2H-benzo[b][1,4] oxazine-2-thione (1), is developed. Compound 1 behaves as a ratiometric probe, exhibiting a large blue shift of 100 nm in its absorption spectra upon exposure to Hg(II) ions. The dramatic color change of the solution made ‘naked-eye’ detection of Hg(II) ions possible. Emission spectra of 1 displayed a selective enhancement in intensity in the presence of Hg(II) ions. ESI+-MS analysis indicated that Hg2+-induced desulfurization caused the large absorption response.
Keywords :
Mercury(II) ion probe , Oxazine thione , Naked-eye detection , Chemosensor
Journal title :
Tetrahedron Letters
Journal title :
Tetrahedron Letters
