A novel chromone based colorimetric sensor for highly selective detection of copper ions: Synthesis, optical properties and DFT calculations

Highly efficient detection of Cu2+and B4O72−based on a recyclable asymmetric salamo‐based probe in aqueous medium

“…A comparison (Table 1) demonstrated that probe H 2 L was superior to other systems. [ 5,6,9,10,26,61 ]…”

“…[ 3–6 ] They have an important influence on development and functions in the blood, central nervous system, immune system, hair, skin, bone tissue, brain, liver, and heart. [ 7–10 ] In addition, copper often appears as complexes and has various forms. Usually it can be used as a small molecule catalyst, and this makes copper complexes widely used in industrial production.…”

Novel edaravone-based azo dyes: efficient synthesis, characterization, antibacterial activity, DFT calculations and comprehensive investigation of the solvent effect on the absorption spectra

“…To better understand the geometrical characteristic and stability of the synthesized dyes in both azo and hydrazo forms, Density Functional Theory (DFT) calculations at the B3LYP/6-31+G(d,p) level were used. 40,41,48 It's worth noting that for all of the optimized structures, the frequency calculations also were carried out to ensure that the obtained geometries are true minima. Two possible tautomers for dye D2 were designed and their initial structures were optimized using B3LYP/6-31+G(d,p) level of theory (Fig.…”

“…24 Dyes based on 5-pyrazolone, are especially extensively used in color photographic materials. [25][26][27] In the context of our general interest in the synthesis of heterocyclic compounds, [28][29][30][31][32][33][34][35][36][37][38][39][40][41] herein, we propose a facile synthesis of the new dyes based on edaravone due to the unique properties of this compound. The synthesis of the desired compounds is possible through the coupling reaction of azo compounds with edaravone (D1-D10).…”

1H‐NMR, Photophysical, and pH Studies of 4‐(4,5‐Diphenyl‐1H‐imidazol‐2‐yl)benzaldehyde through Experimental and DFT Theoretical Analysis

“…For instance, phenolphthalein changes from colorless to a pale pink colored substance when altering pH of the medium. The main halochromic compounds classes are: phthalides, [6] coumarin, [7] azo dyes, [8] and Imidazole derivatives [9,10] etc., In particular, the imidazole derivatives have been shown as impressive fluorophores due to their larger π-conjugated structure and acidity nature of the NH-group. These optical properties have been exploited in different applications like photographic materials, luminescent materials, two-photon absorption applications, two-photon fluorescence microscopy, high density storage and 3D microfabrication, Non Linear Optics (NLO), Dye Sensitized Solar Cells (DSSC), Organic Light Emitting Diodes (OLEDs) and molecular switches, etc., [11][12][13] The well-known 4-(4,5-diphenyl-1H-imidazol-2-yl)benzaldehyde (DPI-BA) ( Figure 1) has been condensed with various functional groups to make a different push-pull chromophore motifs such as D-π-A, D-π-D or A'-π-A, Y-shaped so on.…”