779-84-0Relevant academic research and scientific papers
Colorimetric and fluorescence sensing of fluoride anions with potential salicylaldimine based schiff base receptors
Sivakumar, Radhakrishnan,Reena, Vijayaragavan,Ananthi, Nallamuthu,Babu, Muthiya,Anandan, Sambandam,Velmathi, Sivan
, p. 1146 - 1151 (2010)
Salicylaldimine based schiff base receptors with different substituents showing fluorescent enhancement in the presence of fluoride anion was visualized through naked eye as well as by change in spectral properties (UV-vis and fluorescent techniques). The reason for such fluorescence enhancement may be due to hydrogen bond interaction between receptor recognition site and fluoride anion. Such a hydrogen bond interaction creates a six-membered transition state, which avoids quenching processes. To support this, fluorescence enhancement factor (FEF) was calculated and it was found to be more (FEF = 652) for -NO2 substituted receptor compared to other receptors.
Solvent extraction of copper(II) from sulfate medium with N -(2-hydroxybenzylidene)aniline
Aidi,Barkat
, p. 4136 - 4144 (2010)
Solvent extraction of copper(II) from sulfate medium with N-(2-hydroxybenzylidene)aniline is studied with the following parameters: pH, concentration of the extractant, nature of diluent, and temperature. The extraction of copper(II) proceeds by a cation
On the formation of imines in water-a comparison
Saggiomo, Vittorio,Lüning, Ulrich
, p. 4663 - 4665 (2009)
The reaction of aniline with aryl aldehydes in water has been investigated in the past, but contradictory results have been published. While only small amounts of imines 3 were detected by NMR analysis, isolation afforded high imine yields. A reinvestigat
Synthesis, spectral studies and DFT calculation of copper(II) complexes with mixed ligands
Kumar, Manoj,Anjum, Afreen,Jaiswal, Nitesh,Dubey, Raj Kumar
, p. 1679 - 1684 (2018)
The reaction of copper(II) chloride with Schiff bases and alkanolamines in 1:1:1 molar ratio(s) resulted a series of mixed ligand copper(II) complexes of general formula [Cu(sb)(aa)] (1-6), [where sb = Schiff base; salicylidine-1-aminobenzene (sabH) (1,4)
Redox-active copper triangles as an enzymatic molecular flask for light-driven hydrogen production
Zhao, Liang,Wei, Jianwei,Zhang, Feili,He, Cheng,Zheng, Sijia,Duan, Chunying
, p. 48989 - 48993 (2017)
A positively charged redox-active metal-organic triangle containing three redox-active copper centres was developed to encapsulate anionic organic dyes (fluorescein) through a weak host-guest interaction for photocatalytic hydrogen production. The unique
Background defining during the imine formation reaction in FT-IR liquid cell
Namli, Hilmi,Turhan, Onur
, p. 93 - 100 (2006)
Imine formation is a very important chemical reaction because of its relevance to biological process. Therefore, it is crucial to follow whole reaction process in detail. The current work performed to monitor the whole imination reaction in real time in l
Synergistic extraction of nickel(II) from a sulfate medium by a mixture of N-(2-hydroxybenzylidene)aniline and methyl–isobutyl ketone
Almi,Adjel,Barkat
, p. 1577 - 1584 (2017)
The synergistic solvent extraction of nickel(II) from a sulfate medium with N-(2-hydroxybenzylidene)aniline in the absence and presence of Methyl–Isobutyl Ketone (MIBK) in chloroform at 25°C has been studied. A synergistic effect is observed for the metal
Copper complex based on 2-(phenylimino-methyl)-phenol as a high selective fluoresencent probe for hydrogen sulfide
Ren, Kui,Shang, Xuefang,Fu, Jiajia,Zhao, Peipei,Zhang, Jinlian
, p. 99 - 105 (2016)
A Copper(II) complex of condensation production was synthesized and its crystal was also obtained by the reaction of 2-(phenylimino-methyl)-phenol with Cu(CH3COO)2·H2O. The crystal and molecular structure of the complex wa
In-Situ Photochromism Switching with Crystal Jumping through the Deammoniation of N-Salicylideneaniline Ammonium Salt
Sugiyama, Haruki,Johmoto, Kohei,Sekine, Akiko,Uekusa, Hidehiro
, p. 4324 - 4331 (2019)
N-Salicylideneaniline (SA) derivatives are traditional organic photochromic compounds whose properties are closely related to their molecular conformations and crystal structures. We herein present the photochromic property switching phenomenon of SA ammonium salt crystals using a deammoniation reaction. The N-salicylidene-4-carboxyaniline ammonium salt crystal (1-Sα) was found to exhibit photochromism upon irradiation with UV light. Upon heating, 1-Sα desorbed ammonia gas and transformed into a nonionic SA crystal (1-N) with non-photochromic properties. Surprisingly, this phase transition induced the "jumping crystal" phenomenon. Thus, the crystal structures both before and after the phase transition were determined, and it was revealed that the switching phenomenon of photochromism (photochromism switching) was caused by the crystal structural and molecular conformational changes that took place upon deammoniation. In addition, 1-N reverted to 1-Sα by exposure to aqua-ammonia vapor for a few minutes. These results suggested that such SA crystals could be applicable as switching materials or chemical sensors.
A novel water-soluble multicolor halo- And photochromic switching system based on a nitrile-rich acceptor
Belikov, Mikhail Yu.,Ievlev, Mikhail Yu.,Bardasov, Ivan N.
supporting information, p. 10287 - 10295 (2021/06/18)
A directed synthesis of the first nitrile-rich dye showing visible-light-induced negative photochromism in aqueous medium was implemented. The possibility to change the color of an aqueous solution from yellow to magenta by varying the pH from 5 to 8 was
