Results 21 to 30 of about 4,021 (220)

Development of Rofecoxib-Based Fluorescent Probes and Investigations on Their AIE Activity, Solvatochromism, Mechanochromism and COX-2 Targeted Bioimaging

open access: yes, 2021
Cyclooxygenase-2 (COX-2) fluorescent probes are promising tools for early cancer diagnosis. Traditionally, COX-2 probes were designed by connecting two parts, a fluorophore and a COX-2 binding unit, via a flexible linker.
Zuoxu, Xie   +10 more
core   +1 more source

Solvatochromism and the solvation structure of benzophenone [PDF]

open access: yesThe Journal of Chemical Physics, 2013
Many complex molecular phenomena, including macromolecular association, protein folding, and chemical reactivity, are determined by the nuances of their electrostatic landscapes. The measurement of such electrostatic effects is nonetheless difficult, and is typically accomplished by exploiting a spectroscopic probe within the system of interest, such ...
Justin E, Elenewski, John C, Hackett
openaire   +2 more sources

Heterogeneous Scattering Solvatochromism in Single Prussian Blue Nanoparticles

open access: yes, 2021
Solvatochromism provides many opportunities for various applications, ranging from chemical imaging to chemical sensing. However, a solvatochromic study is restricted to observe the change in the absorption or fluorescence spectroscopy on the basis of ...
Qinglan Zhang (820003)   +11 more
core   +1 more source

Solvation simplified

open access: yesQuímica Nova, 2010
The effects of solvents on chemical phenomena is complex because there are various solute-solvent interaction mechanisms. Solvatochromism refers to the effects of solvents on the spectra of probes. The study of this phenomenon sheds light on the relative
Omar A. El Seoud
doaj   +1 more source

Solvatochromism of N-aryl-phenylacetamides

open access: yesZaštita Materijala, 2016
Amide derivates are biologically active compounds and they are widely used in all spheres of life. Therefore, it is very important to know their physical-chemical properties.
Suzana Lj. Apostolov   +2 more
doaj   +1 more source

N,N-Dimethyl-4-amino-2,1,3-benzothiadiazole: Synthesis and Luminescent Solvatochromism

open access: yesChemistry Proceedings, 2021
N,N-Dimethyl-4-amino-2,1,3-benzothiadiazole (BTDNMe2) was synthesized from the commercially available 2,1,3-benzothiadiazole (BTD) by nitration in a sulfonitric mixture, followed by a reduction of the nitro group and subsequent methylation with ...
Valentina Ferraro   +2 more
doaj   +1 more source

Effect of Counterion on the Solvatochromic Properties of Heteroleptic Chelate Copper(II) Complexes

open access: yesJournal of Spectroscopy, 2013
A series of heteroleptic chelate copper(II) complexes of the type [Cu(L)(acac)]X where acac = acetylacetonate; L = N,N′-1,6-bis(2-fluorophenyl)-2,5-diazahexane; X=CIO4-, BPh4-, PF6-, and BF4- have been prepared and characterized by elemental analyses, IR
Hamid Golchoubian, Hakimeh Fazilati
doaj   +1 more source

Solvatochromism Study on the Copper(II) Complexes Containing 3–Substituted Derivatives of Acetylacetonate Ligands [PDF]

open access: yesIranica Journal of Energy and Environment, 2012
Solvatochromic properties of a series of bis(3–substituted derivatives of acetylacetone) copper(II) (X-acacH , X = Cl, H. CH3) complexes were studied. All the complexes demonstrated negative solvatochromism.
Hamid Golchoubian, Fariba Khoshsiar
doaj  

Description of solvatochromism of peak broadening in absorption spectra in solution using the reference interaction site model self-consistent fields spatial electron density distribution

open access: yes, 2023
We quantified and subsequently analyzed bandwidth of ultraviolet and visible photoabsorption spectral lines in solution by applying time-dependent first-order perturbation theory using the Born-Oppenheimer adiabatic potential calculated using the multi ...
Naoki, Negishi, Daisuke, Yokogawa
core   +1 more source

Light and Dark Cycles Control the Structural Evolution of Photoresponsive Supramolecular Systems

open access: yesAngewandte Chemie, EarlyView.
Here, we report a photoswitchable synthetic peptide that, under light energy cycles, exhibits supramolecular polymorphism coupled to darkness‐driven structural self‐selection. We demonstrate that light sustains a transient assembled state in the form of helical nanoribbons, hindering the system from undergoing a transition to the disassembled state ...
Alejandro Méndez‐Ardoy   +6 more
wiley   +2 more sources

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