Tuning of the sensing properties of luminescent Eu3+ complexes towards the nitrate anion

被引：26

作者：

Piccinelli, Fabio ^{[1
,2
]}

Leonzio, Marco ^{[1
,2
]}

Bettinelli, Marco ^{[1
,2
]}

Monari, Magda ^{[3
]}

Grazioli, Cristian ^{[4
]}

Melchior, Andrea ^{[4
]}

Tolazzi, Marilena ^{[4
]}

机构：

[1] Univ Verona, Luminescent Mat Lab, DB, Str Le Grazie 15, I-37134 Verona, Italy

[2] UdR Verona, INSTM, Str Le Grazie 15, I-37134 Verona, Italy

[3] Univ Bologna, Dipartimento Chim G Ciamician, Via Selmi 2, I-40126 Bologna, Italy

[4] Univ Udine, Dipartimento Chim Fis & Ambiente, Via Cotonificio 108, I-33100 Udine, Italy

来源：

DALTON TRANSACTIONS | 2016年 / 45卷 / 08期

关键词：

METALLIC ION SOLVATION; NAKED-EYE DETECTION; LANTHANIDE COMPLEXES; LIGAND CHIRALITY; EUROPIUM COMPLEX; DONOR LIGAND; SOLID-STATE; RARE-EARTH; CL-ANION; FT-IR;

D O I：

10.1039/c5dt04665c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new family of imine-based ligands containing pyridine or furan as an aromatic donating ring [N,N'-bis-(2-pyridylmethylidene)-1,2-(R,R + S,S)-cyclohexanediamine, L1; N,N'-bis(2-furanylmethylidene)-1,2-(R,R + S,S)-cyclohexanediamine, L2 and N,N'-bis(2-thienylmethylidene)-1,2-(R,S)-cyclohexanediamine, L3] has been prepared in high yield by means of an easy synthetic protocol. Their trifluoromethansulphonate (CF3SO3-, OTf-) Eu(III) complexes have been employed for luminescence sensing of the NO3- anion in an anhydrous acetonitrile solution. Spectrophotometric titrations have been carried out to define the speciation in the solution and study the formation of ternary species occurring with the addition of NO3- anions. The sensing response towards this anion is strongly dependent on the nature of the ligand, the stoichiometry of the complexes and their concentration.

引用

页码：3310 / 3318

页数：9

共 58 条

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