Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of hg2+ ratio fluorescent probe containing rigid structure rhodamine and its preparation method

A technology of ratiometric fluorescent probes and rigid structures, applied in fluorescence/phosphorescence, chemical instruments and methods, luminescent materials, etc., can solve the problems of intensified internal conversion, low fluorescence quantum yield, low sensitivity, etc., and achieve fast response and selectivity Good performance and high sensitivity

Inactive Publication Date: 2016-03-30
HENAN AGRICULTURAL UNIVERSITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the torsional movement of the terminal amino groups of rhodamine B fluorescent dyes, the S 1 -S 0 The internal conversion is intensified, resulting in a relatively low fluorescence quantum yield, and the sensitivity is relatively low when used as a fluorescent probe to detect metal ions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of hg2+ ratio fluorescent probe containing rigid structure rhodamine and its preparation method
  • A kind of hg2+ ratio fluorescent probe containing rigid structure rhodamine and its preparation method
  • A kind of hg2+ ratio fluorescent probe containing rigid structure rhodamine and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]All reagents and materials are commercially available. The hydrogen spectrum was detected by a 400MHz Varian NMR instrument, and the chemical shift was obtained by comparing with TMS. The mass spectrum was detected by LC-MSD-Trap-SL system, and the elemental analysis was detected by FlashEA1112 elemental analyzer.

[0034] 1. Preparation of intermediate OMRh101-DETA

[0035] Add 2.0g of rigid rhodamine (OMRh101), 16mL of diethylenetriamine, and 50mL of ethanol into a 250mL single-necked round-bottomed flask as a solvent, stir the mixture under reflux for 20-24h, and cool the reaction solution to room temperature. Remove the solvent by rotary evaporation with a rotary evaporator, then use 50ml of dichloromethane as solvent to dissolve the solid obtained by rotary evaporation completely, add water 50ml×3 for extraction, take the dichloromethane layer, dry it with anhydrous sodium sulfate, and then use a rotary The evaporator was rotary evaporated to remove the solvent, a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
emission peakaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the field of coordination chemistry and particularly relates to a Hg<2+> ratio fluorescence probe molecule containing a rigid structure rhodamine as well as a preparation method and an application of the Hg<2+> ratio fluorescence probe molecule. The preparation method comprises the following steps: by taking the rigid structure rhodamine as a parent, and modifying by use of diethylenetriamine and NBD to obtain the ratio fluorescence probe OMRh101-DETA-NBD in the form of spiral amine, wherein the ratio fluorescence probe OMRh101-DETA-NBD has the following structure described in the specification. In a system in which mercury ions and other various metal ions coexist, the probe molecule has the characteristics of high selectivity on strong capacity of resisting disturbance, high sensitivity, quick response, reversible operation and the like, and can be applied to mercury ion detection in the environment very well.

Description

technical field [0001] The present invention relates to a kind of Hg containing rigid structure rhodamine 2+ A ratiometric fluorescent probe and a preparation method belong to the field of coordination chemistry. Background technique [0002] Metal ion detection is very important in the fields of chemistry, environmental science, biology, clinical diagnosis and medicine. Some metal ions such as Cu 2+ , Mg 2+ , Fe 3+ , Zn 2+ etc. have very important functions in the life process. Some heavy metal ions such as Pb 2+ , Hg 2+ , Cd 2+ It is extremely toxic to organisms at very low concentrations. Therefore, it is very meaningful to detect metal ions in the environment or biological system. Because the fluorescent signal is very sensitive and easy to detect, the lower limit concentration of its detection is relatively low. interest. Its design principle is to connect the recognition unit and the fluorophore as the signal unit directly or through a space interval, throu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07D491/22C09K11/06G01N21/64
Inventor 谢普会高光芹金秋张闻节
Owner HENAN AGRICULTURAL UNIVERSITY