Journal
INORGANIC CHEMISTRY COMMUNICATIONS
Volume 14, Issue 6, Pages 937-939Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.inoche.2011.03.036
Keywords
Sensor; Fe3+ ion; Luminescence; Terbium
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Funding
- National Science Foundation of China [21003053]
- Guangdong Science and Technology Department [2010B050300021]
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A new terbium (III) coordination polymer {Tb-3(mu(3)-HPyIDC)(4)(H2O)(8)]center dot NO3 center dot 4H(2)O}(n) which exhibits intense green luminescence, was prepared via solvothermal reaction. Interestingly, it still gives rise to green emission when dispersed in pure water. Its sensing abilities were investigated by addition of different cations such as Fe3+, Ba2+, Zn2+, K+, Na+, Mg2+, Ca2+, Fe2+, Mn2+, Co2+, Ni2+, Hg2+, and Cd2+ to water suspension of the assayed powder material. We discovered that only Fe3+ (detection limit 10(-4) M) can give rise to unique fluorescence changing from green to blue to this material. Spectroscopic analyses proved that the coordination interaction between Fe3+ ion and ligand led to this recognition process. (C) 2011 Elsevier B.V. All rights reserved.
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