Synthesis and Fluorescence Property of Novel Zn2+ Schiff Base Complex

2012 ◽  
Vol 535-537 ◽  
pp. 1237-1240
Author(s):  
Li Hua Wang ◽  
Yong Li Wang ◽  
Zhan Zhong Hou ◽  
Yan Zhu Liu

The complex of ZnL2Cl4 was synthesized by using zinc chloride hydrate and ligand 2-[(4-Methylpiperazin-1-yl)iminomethyl]phenol(L) under reflux conditions and anhydrous ethanol as solvent. The complex was characterized by elemental analysis, Infrared spectroscopy, solid fluorescence. Experimental results showed that the free ligand was thermally stable, and emitted intensive blue fluorescence at the peak wavelength of 493 nm. Compared with the fluorescent emission of free ligand, the complex of ZnL2Cl4 is blue-shifted to 448 nm in solid-state and exhibiting stronger blue fluorescence.

2011 ◽  
Vol 399-401 ◽  
pp. 1026-1029
Author(s):  
Li Hua Wang

A novel bi-Schiff-base Zn (II) complex, 1-acetyl-2-naphthol-4, 4’-diaminodiphenylmethane Zn (II), has been synthesized. The luminescent characterizations of the Zn (II) complex material have been studied in solid state and in organic solvents, and the effect of Mg (II) ion on the fluorescence of Zn (II) complex has also been investigated in organic solvents. The results show that the Zn (II) complex material emits weak green fluorescence at 536 nm in solid, emits strong blue fluorescence 451 nm in DMSO. However, there do have luminescent emissions in methanol and in ethanol duo to the influence of overtones.


2019 ◽  
Vol 72 (19-21) ◽  
pp. 3237-3247 ◽  
Author(s):  
Ipsita Mondal ◽  
Kousik Ghosh ◽  
Antonio Franconetti ◽  
Antonio Frontera ◽  
Sudipta Chatterjee ◽  
...  

Author(s):  
Salasiah Endud ◽  
Wong Wen Yee

The Schiff base salen was incorporated to nickel(II) ion to afford nickel(II) diethylamino-substituted salen complex. The diethylamino-substituted salen l salen complex were characterized by Fourier Transform Infrared Spectroscopy (FTIR), diffuse reflectance ultravisible spectroscopy (DR UV-Vis) and 1H (1H-NMR). The binding affinity of the nickel(II) diethylamino-substituted salen complex towards specific anion in dichloromethane was investigated by us


2014 ◽  
Vol 43 (26) ◽  
pp. 10208-10214 ◽  
Author(s):  
Ivan Pietro Oliveri ◽  
Graziella Malandrino ◽  
Santo Di Bella

The influence of several solvent properties, such as volatility, polarity, and Lewis basicity, on the formation of molecular self-assembled nanostructures of an amphiphilic ZnII Schiff-base complex in the solid state is reported.


2021 ◽  
Vol 68 (1) ◽  
pp. 212-221
Author(s):  
Niladri Biswas ◽  
Sandeepta Saha ◽  
Ennio Zangrando ◽  
Antonio Frontera ◽  
Chirantan Roy Choudhury

A new ruthenium(III) complex of molecular formula [Ru(PPh3)Cl2(L)] (1) has been synthesized using the Schiff base ligand obtained from 5-chlorosalicylaldehyde and N,N-dimethylethylenediamine and characterized by FT-IR, UV-Vis, cyclic voltammetry and single crystal X-ray structural analysis. The metal ion exhibits a slightly distorted octahedral environment where the chelating Schiff base ligand contributes with its NNO donor set. The coordination geometry around the Ru(III) ion is completed by a PPh3 ligand and two chloride anions, and the charge balance is assured by the phenoxo oxygen of the Schiff base. With the aim to analyse the energy related to the halogen bonding interactions in solid state, a theoretical study has been performed on complex 1, by using the MEP and NCl plot computational tools. Furthermore, complex 1 shows catecholase-like activity in conversion of the model substrate 3,5-di-tert-butylcatechol (3,5-DTBC) to the corresponding 3,5-di-tert-butylquinone (3,5-DTBQ) under aerobic condition. The parameters regarding the enzymatic kinetics have been evaluated from the Lineweaver-Burk plot using the Michaelis-Menten approach of enzyme catalysis. A significant high T.O.N value (2.346 × 103 h–1) indicates that complex 1 has a very good catalytic efficiency towards 3,5-DTBC.


Sign in / Sign up

Export Citation Format

Share Document