Highly phosphorescent dinuclear Cu(I) complexes with iminephosphine tetradentate chelating ligand (PNNP): structures and luminescence properties

2021 ◽  
pp. 109011
Author(s):  
Wen Lu ◽  
Yile Song ◽  
Chunmei Liu ◽  
Jiayuan Zhang ◽  
Bin Zhang ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Chelating Ligand

Electronic structure and luminescence properties of unique complexes: cyclometalated iridium(iii) chelated by o-carboranyl-pyridine ligands

2018 ◽  
Vol 42 (8) ◽  
pp. 5955-5966 ◽  
Author(s):  
Huize Zhang ◽  
Wenqian Li ◽  
Xi Yan ◽  
Wanlin Cai ◽  
Ming Li ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Luminescence Properties ◽  
Pyridine Ligands ◽  
Chelating Ligand ◽  
First Time

Iridium(iii) complexes that use o-carborane as a chelating ligand have been theoretically investigated for the first time. The superior properties of complexes will potentially promote the discovery of efficient blue-emitting complexes.

Luminescence from individual dislocations in II-VI and III-V semiconductors

1991 ◽  
Vol 49 ◽  
pp. 834-835
Author(s):  
J W Steeds
Keyword(s):  
Group Iv ◽  
Luminescence Properties ◽  
Carrier Recombination ◽  
Transmission Electron ◽  
Wide Range ◽  
Basic Physics ◽  
Semiconducting Compounds ◽  
Diamond Group ◽  
Non Destructive ◽  
Technological Significance

There is a wide range of experimental results related to dislocations in diamond, group IV, II-VI, III-V semiconducting compounds, but few of these come from isolated, well-characterized individual dislocations. We are here concerned with only those results obtained in a transmission electron microscope so that the dislocations responsible were individually imaged. The luminescence properties of the dislocations were studied by cathodoluminescence performed at low temperatures (~30K) achieved by liquid helium cooling. Both spectra and monochromatic cathodoluminescence images have been obtained, in some cases as a function of temperature.There are two aspects of this work. One is mainly of technological significance. By understanding the luminescence properties of dislocations in epitaxial structures, future non-destructive evaluation will be enhanced. The second aim is to arrive at a good detailed understanding of the basic physics associated with carrier recombination near dislocations as revealed by local luminescence properties.

Effect of annealing temperature on luminescence properties of ZnWO 4 :Eu 3+ nanophosphor

2019 ◽  
Vol 14 (5) ◽  
pp. 496-500 ◽  
Author(s):  
Chunyang Li ◽  
Xiaodi Du ◽  
Yurong Shi ◽  
Zhenling Wang
Keyword(s):  
Annealing Temperature ◽  
Luminescence Properties

Growth and Thermo-luminescence Properties of Dy: Bi$lt;inf$gt;4$lt;/inf$gt;Si$lt;inf$gt;3$lt;/inf$gt;O$lt;inf$gt;12$lt;/inf$gt; Crystals

2016 ◽  
Vol 31 (10) ◽  
pp. 1068 ◽  
Author(s):  
WANG Mei-Ling ◽  
XU Jia-Yue ◽  
ZHANG Yan ◽  
CHU Yao-Qing ◽  
YANG Bo-Bo ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Thermo Luminescence

SPECTRAL LUMINESCENCE PROPERTIES OF CdS NANOCOMPOSITES IN A POLYMER SHELL

2017 ◽  
Vol 8 (2) ◽  
pp. 171-180
Author(s):  
Dm. A. Pomogailo ◽  
M. G. Spirin ◽  
V. M. Skobeeva ◽  
G. I. Dzhardimalieva ◽  
S. I. Pomogailo ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Polymer Shell ◽  
Cds Nanocomposites ◽  
Spectral Luminescence

Synthesis, Characterization and Biological Activity of Nitrogen­ Oxygen-Sulfur (NOS) Transition Metal Complexes Derived from Novel S-2,4-dichlorobenzyldithiocarbazate with 5-fluoroisatin

2010 ◽  
Vol 7 (2) ◽  
pp. 67
Author(s):  
Mohd Abdul Fatah Abdul Manan ◽  
Hadariah Bahron ◽  
Karimah Kassim ◽  
Mohd Asrul Hafaz Mohamad ◽  
Syed Nazmi Sayed Mohamad
Keyword(s):  
Bacillus Subtilis ◽  
Schiff Base ◽  
Metal Complexes ◽  
Condensation Reaction ◽  
Schiff Base Complex ◽  
Inhibition Zone ◽  
Azomethine Nitrogen ◽  
Strong Activity ◽  
Chelating Ligand ◽  
Physico Chemical

A novel Schiff base containing nitrogen-oxygen-sulfur (NOS) donor atoms formed from the condensation reaction of S-2,4-dichlorobenzyldithiocarbazate (S-2,4BDTC) with 5-fluroisatin has been synthesized. Complexes of cobalt(II), nickel(II), copper(II), zinc(II) and cadmium(II) with this Schiff base have been prepared and characterized using elemental analysis and various physico-chemical techniques. In the cobalt(II) and nickel(II) complexes the Schiff base behaves as a uninegatively charged tridentate nitrogen-oxygen-sulfur (NOS) chelating ligand, bonding through the azomethine nitrogen, thiolate sulfur and carbonylic oxygen of the isatin moiety. However, in the copper(II), zinc(II) and cadmium(II) complexes the Schiff base behaves as a nitrogen-sulfur (NS) bidentate chelating ligand, bonding through the azomethine nitrogen and thiolate sulfur. The Schiff base and the metal complexes were evaluated with respect to antimicrobial activity, which was performed in relation to two selected pathogenic microbials (Bacillus subtilis and Pseudomonas aeruginosa). It was observed that only the zinc Schiff base complex exhibited strong activity against the Bacillus subtilis bacteria with an inhibition zone of 25 mm. 

Synthesis, Characterization and Biological Activity of NitrogenOxygen-Sulfur (NOS) Transition Metal Complexes Derived from Novel S-2,4-dichlorobenzyldithiocarbazate with 5-fluoroisatin

2010 ◽  
Vol 7 (2) ◽  
pp. 67
Author(s):  
Mohd Abdul Fatah Abdul Manan ◽  
Hadariah Bahron ◽  
Karimah Kassim ◽  
Mohd Asrul Hafiz Muhamad ◽  
Syed Nazmi Sayed Mohamad
Keyword(s):  
Bacillus Subtilis ◽  
Schiff Base ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Condensation Reaction ◽  
Inhibition Zone ◽  
Azomethine Nitrogen ◽  
Strong Activity ◽  
Chelating Ligand ◽  
Physico Chemical

A novel Schiff base containing nitrogen-oxygen-sulfur (NOS) donor atoms formed from the condensation reaction of S-2,4- dichlorobenzyldithiocarbazate (S-2.4BDTC) with 5-fluroisatin has been synthesized. Complexes of cobalt(ll), nickel(ll), copper(ll), zinc(ll) and cadmium(ll) with this Schiff base have been prepared and characterized using elemental analysis and various physico-chemical techniques. In the cobalt(ll) and nickel(II) complexes the SchifJbase behaves as a uninegatively charged tridentate nitrogen-oxygen-sulfur (NOS) chelating ligand, bonding through the azomethine nitrogen, thiolate sulfur and carbonylic oxygen of the isatin moiety. However. in the copper(ll), zinc(II) and cadmium(II) complexes the Schiff base behaves as a nitrogen-sulfur (NS) bidentate chelating ligand, bonding through the azomethine nitrogen and thiolate sulfur. The Schiff base and the metal complexes were evaluated with respect to antimicrobial activity, which was performed in reallion to two selected pathogenic microbials (Bacillus subtilis and Pseudomonas aeruginosa). It was observed that only the zinc Schiffbase complex exhibited strong activity against the Bacillus subtilis bacteria with an inhibition zone of25 mm.

Nickel(II)-Methyl Complexes Adopting Idealized Seesaw Geometries

2019 ◽  
Author(s):  
Ethan A. Hill ◽  
Norman Zhao ◽  
Alexander S. Filatov ◽  
John Anderson
Keyword(s):  
Singlet State ◽  
Strong Field ◽  
Structural Distortion ◽  
Computational Results ◽  
Threefold Symmetry ◽  
Chelating Ligand ◽  
Electronic Stabilization

We report four-coordinate nickel(II)-methyl complexes of tris-carbene borate ligands which adopt rare seesaw geometries. Experimental and computational results suggest the structural distortion from threefold symmetry results from a combination of electronic stabilization of the singlet state, strong field donors, and constrained angles from the chelating ligand.

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