Unlock instant, AI-driven research and patent intelligence for your innovation.
Preparation method and application of near-infrared fluorescent compound with photo-thermal conversion capability
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A technology of photothermal conversion and compounds, applied in chemical instruments and methods, organic chemistry, luminescent materials, etc.
Pending Publication Date: 2022-04-05
TIANJIN UNIVERSITY OF TECHNOLOGY
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0002] Currently, the study of near-infrared fluorescent molecules is a challenging work
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0031] The synthetic method of above-mentioned compound 1, comprises the following steps:
[0032] Compound 1, the molecular formula is C 72 h 66 N 8 o 2 S 2 , the chemical formula of compound 1 is as shown in formula (I):
[0033]
[0034] Its preparation method, the steps are as follows:
[0035] 1) 2,5-di(4-tert-butylphenyl)amine-1,4-dicarbaldehyde and rhodanic-CN dissolved in 1,4-dioxane;
[0036] 2) Add 0.5ml triethylamine and react at 110°C for 6h;
[0037] 3) After the reaction is cooled, recrystallize with dichloromethane / petroleumether to obtain the final product.
[0038] The molar ratio of 2,5-bis(4-tert-butylphenyl)amine-1,4-dimethylaldehyde to rhodanic-CN is 0.2mmol:0.4mmol.
Embodiment 2
[0040] The synthetic method of above-mentioned compound 2, comprises the following steps:
[0041] Compound 2, the molecular formula is C 56 h 34 N 8 o 2 S 2 The molecular chemical formula of compound 2 is shown in formula (II):
[0042]
[0043] The synthetic method comprises the following steps:
[0044] 1) 2,5-diamine-1,4-dicarbaldehyde and rhodanic-CN dissolved in 1,4-dioxane;
[0045] 2) Add 0.5ml triethylamine and react at 110°C for 6h;
[0046] 3) After the reaction is cooled, recrystallize with dichloromethane / petroleumether to obtain the final product. The molar ratio of 2,5-diamine-1,4-dicarbaldehyde to rhodanic-CN is 0.2mmol:0.4mmol.
[0047] Characterization 1. UV-Vis absorption spectrum of fluorescent compounds:
[0048] Dissolve the fluorescent compound in a solution of THF to a final concentration of 5.0 × 10 -5 M, such as figure 1 Shown: the maximum absorption of its ultraviolet-visible absorption spectrum is measured at about 580nm.
[0049] Ch...
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
Login to View More
Abstract
The invention discloses a compound integrating solid-state fluorescence emission light and photo-thermal capacity as well as a preparation method and application thereof. The molecular formula of the compound is shown in the specification. The invention discloses a preparation method and application of a solid-state near-infraredfluorescence emission compound containing diphenylamine and rhodanic-CN (rhodanic-CN). The compound provided by the invention has aggregation-induced emission characteristic and photo-thermal conversion ability, the unique chemical structure of the compound enables the compound to emit near-infrared light, the solid-state maximum fluorescence peak position is 820 nm, and the nanoparticles of the compound have excellent and stable thermal conversion ability and photo-bleaching resistance. Therefore, the molecule has a wide application prospect.
Description
technical field [0001] The invention belongs to the technical field of near-infrared fluorescence emission and photothermal conversion, and specifically relates to a compound that integrates near-infrared solid-state fluorescence emission and photothermal conversion capabilities and its preparation method and application. Background technique [0002] At present, the study of near-infrared fluorescent molecules is a challenging work. At the same time, near-infrared (NIR, 700-900nm) fluorescent molecules have potential application value in biological and other fields, so many researchers are interested. Photothermal materials can be applied in fields such as cancerphotothermal therapy, but there are few materials with photothermal conversion ability. Therefore, the synthesis of materials with near-infrared luminescence and photothermal conversion capabilities is urgently needed. [0003] In 2001, the team of academician Tang Benzhong proposed the concept of aggregation-ind...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More 
