Selective Luminescence-Based Detection of Cd2+ and Zn2+ Ions in Water Using a Proton-Transferred Coordination Polymer-Amine Conjugate Pair
作者： Debal Kanti Singha , Prakash Majee , Sudip Kumar Mondal , Partha Mahata
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摘要: A proton-transferred coordination polymer-amine conjugate pair {(H2pip)[Mn(pydc-2,5)2(H2O)]⋅2H2O}{H2pip=piperazinediium, pydc-2,5=pyridine-2,5-dicarboxylate}, 1, has been successfully synthesized using hydrothermal technique. Single crystal X-ray data of 1confirmed one-dimensional anionic metal-organic polymer hydrogen bonded with protonated piprazine (piperazinediium) and lattice water molecules. The phase purity 1isconfirmed by powder x-ray diffraction thermogravimetric analysis. Compound 1 is soluble in nature its aqueous solution gives intense luminescence emission at 415 nm upon excitation 310 nm. This shows many fold turn on behaviour presence trace amount (ppb level) Cd2+ Zn2+ ions medium. intensity compound either remains unaltered or quenches to some extent the other common metal such asNa+,K+, Mg2+, Ca2+, Al3+,Mn2+, Pb2+, Cr3+, Hg2+, Cu2+, Ni2+, Co2+,Fe2+and Fe3+. based selectivity towards detection even quenchable like
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