A Ferrocene-Porphyrin Ligand for Multi-Transduction Chemical Sensor Development

Abstract

5,10,15,20-Tetraferrocenyl porphyrin, H 2 TFcP, a simple example of a donor-acceptor system, was tested as ligand for the development of a novel multi-transduction chemical sensors aimed at the determination of transition metal ions. The fluorescence energy transfer between ferrocene donor and porphyrin acceptor sub-units was considered. The simultaneously measured optical and potentiometric responses of solvent polymeric membranes based on H 2 TFcP permitted the detection of lead ions in sample solutions, in the concentration range from 2.7 × 10 −7 to 3.0 × 10 −3 M.The detection limit of lead determination was 0.27 μM, low enough to perform the direct analysis of Pb 2+ in natural waters.

Synthesis, Aromaticity and Photophysical Behaviour of Ferrocene‐ and Ruthenocene‐Appended Semisynthetic Chlorin Derivatives

“…To this end, metallocene derivatives of tetrapyrroles have been extensively used in various areas, such as light harvesting and solar‐energy conversion,16–19 molecular devices,20 and chemical sensors 21. Their excellent energy‐ and charge‐transfer capability make them advantageous in mimicking photosynthetic processes 22.…”

A Miniaturized Therapeutic Chromophore for Multiple Metal Pollutant Sensing, Pathological Metal Diagnosis and Logical Computing

“…The results presented show how effective a unimolecular receptor/sensor system can be when used in combination with chemometric tools. Hence, therapeutic chromophore 1 competes efficiently with multiple-dye integrated sensors or devices, multichannel sensors and array based sensors, and takes analytical device miniaturization6789101112131415161718192021222324252627282930313233343536373848495051525354555657585960 a step further with easy accessibility and diversification using an already existing concept of pattern generation and chemometric analysis. The multi-metal receptive nature of the unimolecular therapeutic device 1 further increases its potential for the construction of a next generation complex logic gate device at the molecular level123456789101112.…”

“…Several fluorophoric sensors based on porphyrin were developed for few specific metal ion detection5354555657, logic gate device construction585960, protein recognition23 and nanopore formation6162 mostly using soret band (B-band) for excitation. A very limited number of chromophoric sensors32636465666768 was reported for the detection of few metal ions63646566 using single porphyrin derivatives.…”

Synthesis and Properties of Porphyrin Containing Long Chain Alkylferrocene

“…将二茂铁通过共轭方式与卟啉连 接, 由于二茂铁具有低的氧化电势, 作为电子给体可以 将电子传递给卟啉, 从而降低卟啉的氧化电势, 使卟啉 更易于氧化; 同时二茂铁的引入还能减小 π 电子的 HOMO 和 LUMO 能级差, 从而改善卟啉类化合物的光 吸收及发光性能 [9] . 因此二茂铁修饰卟啉后赋予了卟啉 分子新的功能, 常用作性能优良的光敏剂, 在光电功能 材料及器件--如通过给受体之间的光诱导电子转移 模拟光合反应中心 [10] 、基于多氧化还原中心的光电化学 传感及电子器件 [11,12] 、 基于多电子氧化还原催化剂 [13,14] 、 分子水平的信息存贮 [15] 及主客体化学 [16] 等多领域得到 广泛应用. 二茂铁取代卟啉化合物的应用目前仍是人们 研究的热点 [17,18] .…”