Selective fluorescence sensing of H₂PO₄⁻by the anion induced formation of self-assembled supramolecular polymers

Abstract

H2PO4− anions induced the formation of a fluorescent supramolecular polymer by halogen bonding interactions in a bromoimidazolium based tripodal receptor.

Halogen bonding and chalcogen bonding mediated sensing

“… 94 In a later study a related tripodal bromoimidazolium anthracene receptor displayed similar selective detection of H 2 PO 4 − via the same excimer response mechanism. 95 The same group also developed a tetra bromoimidazole-tetraphenylethylene as an ion-pair receptor, capable of selective emission turn-on sensing of HSO 4 − in the presence of co-bound Zn 2+ in ACN. 96 …”

“…94 In a later study a related tripodal bromoimidazolium anthracene receptor displayed similar selective detection of H 2 PO 4 À via the same excimer response mechanism. 95 The same group also developed a tetra bromoimidazole-tetraphenylethylene as an ion-pair receptor, capable of selective emission turn-on sensing of HSO 4 À in the presence of co-bound Zn 2+ in ACN. 96 In analogy to many of the other sensors described in the other sections of this review, the ubiquitous 5-iodo-1,2,3triazole motif has been exploited in a large range of uorescent XB anion sensors.…”

Advances in fluorescent and colorimetric sensors for anionic species

“…The Caballero group have developed a motif which displays selectively towards dihydrogen phosphate [93]. The researchers synthesised tripodal receptor 39 (Fig.…”

Research Progress of Organic Polymer Fluorescence Sensor

“…例如, 沈群东课题组 [110] [111] . 利用卤代烃 对聚合物侧链中的 N 原子进行季铵化修饰, 可得到具有 独特的电学和光学特性的共轭离子聚合物 [112][113][114] . 例如, 北京科技大学王国杰课题组 [115] 在离子型有机荧光聚合物的生物检测方面, 王树 等 [116][117] 对肿瘤细胞的检测与靶向治疗、基因表达的远 程操控 [118] 、诱导细胞的功能调节 [119] 等进行了大量的研 究, 特别是对病原体细胞的识别与清除方面取得了重要 的成果 [120][121][122] [123] .…”