Quantum-chemical calculations on the spectral properties of some aryl substituted 3-phosphonocoumarins were performed, and the effect of the substituents in the aryl moiety was evaluated. The structures possessing promising fluorescent properties were successfully synthesized via Suzuki and Sonogashira cross-coupling. The synthetic protocol was also applied for the phosphorous chemoisomer of 3-phosphonocoumarin, 1,2-benzoxaphosphorin, and their carboxylate analogues. The optical properties of the arylated and alkynylated products were experimentally determined. The obtained quantum-chemical and experimental results give the possibility for a fine tuning of the optical properties of phosphorous-containing coumarin systems by altering the substituent at its C-6 position.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9654183 | PMC |
| http://dx.doi.org/10.3390/molecules27217649 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Synthesis, Photophysical Properties and Systematic Evaluation of New Class Fluorescein Based Derivative with Organic Solvents: Spectroscopic and Density Functional Theory Methods for Optoelectronic Applications.
J Fluoresc
January 2025
Department of Physics, Jnanabharathi, Bangalore University, Bengaluru, 560056, Karnataka, India.
In this report the photophysical property of newly synthesized fluorescein based derivative 2-(5-((2,4-dichlorophenyl)diazenyl)-6-hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid has studied by spectroscopic and theoretical that is by Density Functional Theory technique. The structural and functional group of the synthesized molecule was confirmed by nuclear magnetic resonance and fourier transform infrared spectroscopy technique, and from the result so far obtained has been confirmed that molecule has a stable structure and confirmed the presence the functional groups present in the sample. The optical properties of the molecule are studied using the spectroscopic technique and it has revealed the solute-solvent interaction behaviour of the molecule and it has been observed that the bathochromic shift was of about 5 nm, from the fluorescence measurement it has revealed that the emission has been observed at green region and from the power spectra it has been confirmed the same.
View Article and Find Full Text PDFBiomaterial-based strategies for primary human corneal endothelial cells for therapeutic applications: from cell expansion to transplantable carrier.
Biomater Sci
January 2025
Department of Chemical Engineering, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada.
The treatment of corneal blindness due to corneal diseases and injuries often requires the transplantation of healthy cadaveric corneal endothelial graft tissue to restore corneal clarity and visual function. However, the limited availability of donor corneas poses a significant challenge in meeting the demand for corneal transplantation. As a result, there is a growing interest in developing strategies alleviate this unmet need, and one of the postulated approaches is to isolate and expand primary human corneal endothelial cells (HCECs) for use in cell therapy.
View Article and Find Full Text PDFThe current investigation focuses on synthesizing Ag-Fe bimetallic nanoparticles (AgFe-BMNPs) using cell-free filtrates of the as a novel fungal reducing agent. The optical, morphological, and surface properties of these fungus-fabricated AgFe-BMNPs and their monometallic counterparts (AgNPs and FeNPs) were analyzed using sophisticated nanotechnology instruments. The UV-visible spectrum showed peaks at 231 nm and 415 nm for BMNPs and 450 nm and 386 nm for AgNPs and FeNPs, respectively.
View Article and Find Full Text PDFAtomic structures and electronic properties of different contact surfaces for C F -SiO triboelectric nanogenerator based on first-principles investigations.
RSC Adv
January 2025
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications Beijing 100876 China
Modification of the dielectric friction layer materials is an ideal way to enhance the output performance of a triboelectric nanogenerator (TENG), but current research mostly focuses on the metal-polymer or metal-SiO materials. In this work, we constructed different TENG models based on polymer C F -SiO electret materials, and the electronic properties of the different contact surfaces were investigated using first principles. We found that the charge transfer in C F -SiO materials occurred only at the contact interface, and it was partially affected by the terminal atoms near the SiO interface.
View Article and Find Full Text PDFA new method for concomitant evaluation of drug combinations for their antimicrobial properties.
MethodsX
June 2025
Department of Biosciences, Jamia Millia Islamia, New Delhi, India.
Microbial pathogens have developed resistance mechanisms to almost every antibiotic available. There is a need to synthesize or screen new natural compounds to combat the development of drug-resistant pathogens. One of the commonly used methods to evaluate the antimicrobial activity of two or more antibiotics involves a checkerboard assay, which is cumbersome, time-consuming, and expensive.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!