14741-04-9Relevant academic research and scientific papers
Facile synthesis, solublization studies and anti-inflammatory activity of amorphous zinc(Ii) centered aldimine complexes
Ali, Uzma,Alshater, Heba,Imran, Muhammad,Maalik, Aneela,Noor, Sadia,Qureshi, Ahmad Kaleem,Raheel, Ahmad,Sharif, Muhammad,Taj, Muhammad Babar,Tirmizi, Syed Ahmad
, p. 929 - 941 (2021/06/26)
In this study, Zn(II) centered complexes with aldimine derivatives were synthesized using green solvent, polyethylene glycol (PEG-400) and amorphous complexes were characterized by FT-IR, multinuclear (1H and13C NMR), elemental and thermal analysis. Thermogravimetric analysis indicated the extended thermal stability of the synthesized complexes. All the Zn(II) complexes show very significant photoexcitation in the range of 318 – 384 nm and photoemission in the range of 502 – 562 nm. Among all the complexes, Zn(II) complex (3Zn) showed minimum band gap value, 2.35 eV. These amorphous complexes have been reported for their wide applications in biomedical sciences. The synthesized aldimine ligands and Zn(II) complexes were investigated for anti-inflammatory activity and these complexes showed more anti-inflammatory potential than the corresponding aldimine ligands. The solubilization of zinc complexes in sodium dodecyl sulphate was also investigated to reveal the interaction of metal complexes by using UV-Visible spectroscopy and electrical conductivity measurements.
Chemical fixation of CO2 into cyclic carbonates by azo-containing Schiff base metal complexes
Ikiz, Mesut,Ispir, Esin,Aytar, Emine,Ulusoy, Mahmut,Karabu?a, ?emistan,Aslanta?, Mehmet,?elik, ?mer
, p. 7786 - 7796 (2015/10/12)
Two new ligands containing a -NN- group, 4-((E)-(4-bromophenyl)diazenyl)-2-((E)-(phenylimino)methyl)phenol (L1H, 2), 4-((E)-(4-bromophenyl)diazenyl)-2-((E)-((4-ethylphenyl)imino)methyl)phenol (L2H, 3) and their metal complexes were synthesized. The synthesized metal complexes were used as catalysts for the chemical fixation of CO2 into cyclic carbonates using epoxides which were used as both substrate and solvent. According to analytical, UV-visible and IR data, the metal complexes are formed by coordination of the N and O atoms of the ligands and the metal:ligand ratio was found to be 1:2 for all the complexes. The TG and DTA results showed that these complexes had good thermal stability. The molecular structures of ligand 2 (L1H) and its ZnII complex 4 (Zn(L1)2) were determined by single crystal X-ray diffraction studies. After choosing the most active catalyst (Zn(L1)2, 4), optimization studies were performed by changing various parameters. Ionic liquids have been found to have a positive effect and showed the most active performance with (bmim)PF6 + Zn(L1)2 (4) as a binary catalytic system.
Substituted azomethine-zinc complexes: Thermal stability, photophysical, electrochemical and electron transport properties
Chen, Liang,Qiao, Juan,Xie, Junfeng,Duan, Lian,Zhang, Deqiang,Wang, Liduo,Qiu, Yong
, p. 2327 - 2333 (2009/10/16)
A series of zinc complexes with salicylidene-aniline and its derivatives as ligands have been designed and synthesized for electron transport in organic light-emitting diodes (OLEDs). A systematic study on their thermal, photophysical, electrochemical and
Self-assembled zinc(II) Schiff base polymers for applications in polymer light-emitting devices
Kwok, Chi-Chung,Yu, Sze-Chit,Sham, Iona H. T.,Che, Chi-Ming
, p. 2758 - 2759 (2008/10/09)
Thermally stable zinc(II) Schiff base polymers (decomposition temperature up to 461°C; Mn = 13580 to 20440) formed by self-assembly reactions of zinc(II) salts and salicylaldimine monomers exhibit blue to yellow PL with quantum yields up to 0.34 in DMF; PLEDs employing these polymers as emitters give green or orange EL with turn-on voltage at 5 and 6 V and maximum efficiency of 2.0 and 2.6 cd A-1 respectively.
