摘要
The phosphorus-containing PODIPY 1 as a chemosensor can detect Hg^2＋ by a color change from pink to violet red without the use of any instrumentation. PODIPY 1 was selective to Hg^2＋ with a remarkable absorption change, and addition of other relevant metal ions caused almost no absorption change. The new PODIPY dye 1 was sensitive to various concentrations of Hg^2＋. The energy gap between the HOMO and LUMO of the metal complex 1–Hg^2＋ is smaller than that of chemosensor 1, which is in good agreement with the red shift in the absorption observed upon treatment of 1 with Hg^2＋. The 1-based test strips were easily fabricated and low-cost, useful in practical and efficient Hg^2＋test kits.
The phosphorus-containing PODIPY 1 as a chemosensor can detect Hg^2＋ by a color change from pink to violet red without the use of any instrumentation. PODIPY 1 was selective to Hg^2＋ with a remarkable absorption change, and addition of other relevant metal ions caused almost no absorption change. The new PODIPY dye 1 was sensitive to various concentrations of Hg^2＋. The energy gap between the HOMO and LUMO of the metal complex 1–Hg^2＋ is smaller than that of chemosensor 1, which is in good agreement with the red shift in the absorption observed upon treatment of 1 with Hg^2＋. The 1-based test strips were easily fabricated and low-cost, useful in practical and efficient Hg^2＋test kits.
基金
supported by the Public Research Foundation of Liaoning Province for the Cause of Science (No. 2014003009)
Science and Technology Key Project of Liaoning Province (No. 2013304007)
the Foundation of the Education Department of Henan Province for Science and Technology Research Projects (No. 13A150046)
the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
the startup funds from Shenyang University of Chemical Technology
