A Novel Supermolecular Tetrameric Vanadate-Selective Colorimetric and “Off–On” Sensor with Pyrene Ligand

Abstract

Tris(2-((ethylimino)methyl)pyren-1-ol)amine (1) was synthesized and introduced as the first tetrameric vanadate fluorescence sensor, the entire binding of which was successfully accomplished in two steps with distinct colorimetric changes and "off-on" fluorescent enhancement.

Vanadium, niobium and tantalum

“…11 Tris (2-((ethylimino)methyl)pyren-1-ol)amine was used to generate a tetrameric vanadate fluorescent sensor. 12 The first dinuclear vanadium(V)citrate complex bearing both non-peroxo and peroxo-containing vanadium(V) centres, [(NH 4 ) 4 ][(VO 2 ){VO(O 2 )}(C 6 H 5 O 7 ) 2 ]Á1.5H 2 O was crystallographically characterised. 13 Solution phase studies of the cationic vanadium(V) complexes, [VO(pb)] + (pbH 2 = putrebactin) and [VO(sbhaH 2 )] + (sbhaH 4 = suberodihydroxamic acid) were performed with attention to pH dependent speciation of said species.…”

A Highly Selective Turn-On Fluorescent Probe for the Detection of Zinc

“…However, due to the high cost of equipment, cumbersome sample preparation, or prolonged testing time, the wide application of these methods in actual testing has been limited. Among various detection methods, metal ion fluorescent chemical sensors have attracted much attention because of the convenient use, high sensitivity, and ability to directly measure concentration through fluorescent signals [23][24][25][26][27]. Zn 2+ fluorescent probes can be divided into three categories: fluorescence quenching, fluorescence enhanced type, and ratio type.…”

Characterization of a highly Al3+‐selective fluorescence probe based on naphthalimide‐Schiff base and its application to practical water samples

“…In addition, Schiff bases can provide an electron‐rich environment and enable binding to metal ions . Meanwhile, there have been some reports of synthesis of simple and effective Shiff base‐based fluorescent sensors to detect metal ions and anions that displayed selective responses . Therefore, it can be conceived that Schiff bases containing 1,8‐naphthalimides moieties show extraordinary fluorescence properties and will satisfy a prerequisite for the design of the efficient Al 3+ selective fluorescent probes.…”