Fluorescent Properties of Mg (II) Complex with 1-Acetyl-2-Naphthol-4, 4’-Diaminodiphenylmethane

2012 ◽  
Vol 424-425 ◽  
pp. 14-17
Author(s):  
Li Hua Wang
Keyword(s):  
Schiff Base ◽  
Organic Solvents ◽  
Schiff Base Ligand ◽  
Luminescent Material ◽  
Fluorescent Properties ◽  
Complex Material

A mono-ligand neutral Mg (II) complex of a Schiff base ligand derived from 1-acetyl-2-naphthol and 4, 4’-diaminodiphenylmethane was prepared and characterized. The Schiff base acts as a double, negatively charged quadridentate ligand forming stable neutral Mg (II) complex. The luminescent characterizations of the Mg (II) complex material in solid and in organic solvents show that the Mg (II) complex has strong luminescent emission at ca. 452 nm when excited at 323 nm. The Mg (II) complex synthesized may be an excellent luminescent material.

Synthesis and Spectral Characterization of a New Mg (II)-Schiff Base Luminescent Materials

2011 ◽  
Vol 366 ◽  
pp. 145-148
Author(s):  
Xi Shi Tai
Keyword(s):  
Schiff Base ◽  
Infrared Spectrum ◽  
Organic Solvents ◽  
Elemental Analysis ◽  
Schiff Base Ligand ◽  
Luminescent Materials ◽  
Fluorescent Intensity ◽  
Complex Material ◽  
Factors Influencing

A new Schiff base ligand, salicylaldehyde-4, 4'-diaminodiphenyl ether (L), and its complexes with Mg (II) have been synthesized. The Mg (II) complex was characterized by elemental analysis and infrared spectrum. The results indicate that the Mg (II) ion coordinates to the nitrogen atoms and oxygen atoms of the ligand. The fluorescence properties of Mg (II) complex material in solid and in organic solvents were studied. The solvent factors influencing the fluorescent intensity are discussed.

A New Fluorescent Material of Zn (II) Complex with 1-Acetyl-2-Naphthol-4, 4’-Diaminodiphenylmethane

2011 ◽  
Vol 399-401 ◽  
pp. 1026-1029
Author(s):  
Li Hua Wang
Keyword(s):  
Schiff Base ◽  
Solid State ◽  
Organic Solvents ◽  
Green Fluorescence ◽  
Blue Fluorescence ◽  
Complex Material ◽  
Fluorescent Material

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.

Synthesis and Luminescent Properties of Two Zn (II) Complexes with Schiff-Base Ligand

2011 ◽  
Vol 322 ◽  
pp. 341-344 ◽  
Author(s):  
Yi Min Feng
Keyword(s):  
Schiff Base ◽  
Organic Solvents ◽  
Schiff Base Ligand ◽  
Luminescence Intensity ◽  
Zinc Acetate Dihydrate ◽  
Luminescent Properties ◽  
Luminescent Intensity ◽  
Dmso Solution ◽  
Acetate Dihydrate ◽  
Schiff Base Ligands

Two Zn (II) complexes have been prepared by reaction of zinc acetate dihydrate with Schiff-base ligands. The IR spectra of complexes were measured. The luminescence properties of the Zn (II) complexes in solid and in methanol, ethanol and DMSO solution were investigated and the effects of organic solvents on the luminescent intensity of Zn (II) complexes also were studied. The results show that the Zn (II) ions formed stable complexes. The complexes exhibited maximum fluorescence emissions in blue region and the organic solvents have effect on the luminescence intensity.

Synthesis and Luminescent Properties of Mg (II) Complex Material with Quinaldine Acid

2011 ◽  
Vol 366 ◽  
pp. 408-411
Author(s):  
Li Hua Wang
Keyword(s):  
Single Crystal ◽  
Organic Solvents ◽  
Luminescent Properties ◽  
Luminescent Material ◽  
Green Fluorescence ◽  
Single Crystal Diffraction ◽  
Triclinic Space Group ◽  
Complex Material ◽  
Space Group ◽  
X Ray

A new green luminescent material Mg (L)2•H2O•CH3O (L = quinaldine acid) has been synthesized by the reaction of MgCl2•6H2O with quinaldine acid. The material was determined by X-ray single-crystal diffraction methods. The single-crystal X-ray analysis of Mg (II) complex reveals that the crystal belongs triclinic, space group P-1 with a = 0.71287(2) nm, b = 0.90375(3) nm, c = 1.08457(3) nm, α = 75.677(4), ß = 74.138(4), γ = 70.160(4). The luminescent properties of Mg (II) material were studied in solid and in organic solvents, respectively. The results show that the Mg (II) material emits green fluorescence.

Synthesis and Photoluminescent Properties of 1-Acetyl-2-naphthol -4, 4’-diaminodiphenylmethane and its Cd (II) Complex

2012 ◽  
Vol 424-425 ◽  
pp. 31-34
Author(s):  
Li Hua Wang
Keyword(s):  
Schiff Base ◽  
Organic Solvents ◽  
Schiff Base Ligand

A Cd (II) complex with Schiff base ligand, 1-acetyl-2-naphthol-4, 4’-diaminodiphenylmethane (L), has been prepared. The photoluminescent properties of ligand and its Cd (II) complex have been investigated. The results show that the ligand and Cd (II) complex have stronger fluorescence in DMSO, however, their fluorescence are very weak in solid, in methanol and in ethanol, indicating that DMSO solvent could enhance the fluorescence of ligand and its Cd (II) complex. The Cd (II) complex is stable either in air or in organic solvents.

Spin-crossover in an iron(iii) complex showing a broad thermal hysteresis

2021 ◽  
Author(s):  
Cyril Rajnák ◽  
Romana Mičová ◽  
Ján Moncoľ ◽  
Ľubor Dlháň ◽  
Christoph Krüger ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Spin Crossover ◽  
Thermal Hysteresis ◽  
Mononuclear Complex ◽  
Hysteresis Width ◽  
Thermally Induced

A pentadentate Schiff-base ligand 3,5Cl-L2− and NCSe− form a iron(iii) mononuclear complex [Fe(3,5Cl-L)(NCSe)], which shows a thermally induced spin crossover with a broad hysteresis width of 24 K between 123 K (warming) and 99 K (cooling).

A facile synthesized benzophenone Schiff-base ligand as efficient type II visible light photoinitiator

2021 ◽  
Vol 157 ◽  
pp. 106329
Author(s):  
Tanlong Xue ◽  
Yang Li ◽  
Xiangchen Zhao ◽  
Jun Nie ◽  
Xiaoqun Zhu
Keyword(s):  
Schiff Base ◽  
Visible Light ◽  
Schiff Base Ligand ◽  
Type Ii ◽  
Efficient Type

DNA cleavage mechanism by metal complexes of Cu(II), Zn(II) and VO(IV) with a schiff-base ligand

Biochimie ◽  
2021 ◽  
Vol 186 ◽  
pp. 43-50
Author(s):  
María R. Rodríguez ◽  
Martín J. Lavecchia ◽  
Beatriz S. Parajón-Costa ◽  
Ana C. González-Baró ◽  
María R. González-Baró ◽  
...  
Keyword(s):  
Schiff Base ◽  
Metal Complexes ◽  
Schiff Base Ligand ◽  
Dna Cleavage
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