Effect of substitution on pyrazoline based donor-acceptor molecules as luminescent and their electrochemical properties

Involvement of halogen and polyaromatic substituents in chalcone derivatives as dye sensitizers in solar cell applications

“…1) began with the preparation of TiO 2 on glass for each sample. 16,23,24 The designated TiO 2 on glass was immersed in the dye solution, which was prepared by dissolving 10 À2 M of the precipitate in 5 mL of acetonitrile overnight for both compounds. Then, the remaining dye solution was dropped onto the TiO 2 area using the drop-casting technique with the presence of hot airflow to dry the sample.…”

“…CV studies were conducted to discover the oxidation and reduction properties of the synthesized PyBr and PyF. 16,23,24 A Three-electrode system with the proposed sample as the working electrode, a platinum electrode as the counter electrode, and an Ag/AgCl electrode as the reference electrode was employed during this study. 16 The cyclic voltammograms of all compounds are listed in Fig.…”

A Review on the Milestones of Blue Light-Emitting Materials in India

“…Besides this, the HOMO and LUMO energy gap observed for PP-Br and PP-OCH 3 was 3.111 and 3.274 eV, respectively. 76 In 2021, two new blue emissive materials were designed (Figure 48). The synthesized molecules NSPI-DVP and CNSPI-DVP were capable enough to show AIE and free-ofconcentration quenching in film.…”

Tuning a pyrazoline‐based fluorogenic reagent, 3‐naphthyl‐1‐(4‐trifluoromethyl)‐5‐(4‐carboxy phenyl)‐2‐pyrazoline for sensitive precolumn derivatization of aliphatic alcohols and trace analysis by RP‐HPLC with fluorescence detection

“…Interestingly, the unique intramolecular charge transfer characteristics of these types of molecules can be modulated by expanding the conjugated system by attaching electron‐donating or ‐withdrawing moieties. Moreover, these are classified as highly fluorigenic compounds bearing blue light emission efficiency and excellent sensitivity (Al Sabahi et al, 2020; Bozkurt et al, 2018; Chibac et al, 2019; Karuppusamy & Kannan, 2020; Mysliwiec et al, 2014; Shi et al, 2011; Varghese et al, 2015; Varghese et al, 2017). To date, the derivatization of hydroxyl groups with reagents such as 2‐furoyl chloride, benzoyl chloride, dinitrobenzoyl chloride, phthalic anhydride, diphenic anhydrides, naphthyl isocyanate, 2‐(4‐carboxy phenyl)‐6‐ N , N ‐diethylaminobenzofuran, 2‐(4‐carboxyphenyl)‐6‐methoxybenzofuran, 4‐[ N ‐methyl, N ‐(1‐naphthylmethyl)]‐amino‐4‐ oxobutanoic acid, 3,4‐dihydro,7‐dimethoxy‐4‐methyl‐3‐oxo‐quinoxaline‐2‐carbonyl chloride (DMEQ‐COCl), 9‐fluorenylmethyl chloroformate, l‐anthroylnitrile and o ‐phthaldehyde covers most of the published studies.…”