Sensing Zn2+ in Aqueous Solution with a Fluorescent Scorpiand Macrocyclic Ligand Decorated with an Anthracene Bearing Tail
Sensing Zn2+ in Aqueous Solution with a Fluorescent Scorpiand Macrocyclic Ligand Decorated with an Anthracene Bearing Tail
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用带有蒽尾部修饰的荧光蝎形和大环配体检测水溶液中的 Zn2
DOI:
10.3390/molecules25061355
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发表时间:
2020
期刊:
影响因子:
4.6
通讯作者:
C. Bazzicalupi
中科院分区:
文献类型:
--
作者:
M. Savastano;M. Fiaschi;G. Ferraro;P. Gratteri;P. Mariani;A. Bianchi;C. Bazzicalupi
Synthesis of the new scorpiand ligand L composed of a [9]aneN3 macrocyclic ring bearing a CH2CH2NHCH2-anthracene tail is reported. L forms both cation (Zn2+) and anion (phosphate, benzoate) complexes. In addition, the zinc complexes of L bind these anions. The equilibrium constants for ligand protonation and complex formation were determined in 0.1 M NaCl aqueous solution at 298.1 ± 0.1 K by means of potentiometric (pH-metric) titrations. pH Controlled coordination/detachment of the ligand tail to Zn2+ switch on and off the fluorescence emission from the anthracene fluorophore. Accordingly, L is able to sense Zn2+ in the pH range 6–10 down to nM concentrations of the metal ion. L can efficiently sense Zn2+ even in the presence of large excess of coordinating anions, such as cyanide, sulphide, phosphate and benzoate, despite their ability to bind the metal ion.
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影响因子:
4.6
作者:
Brewer SM;Wilson KR;Jones DG;Reinheimer EW;Archibald SJ;Prior TJ;Ayala MA;Foster AL;Hubin TJ;Green KN
通讯作者:
Green KN
影响因子:
11.2
作者:
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通讯作者:
Press OW
影响因子:
4.6
作者:
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影响因子:
4.9
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通讯作者:
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影响因子:
1.8
作者:
Tsai WK;Wu AM
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