Three-Dimensional Lanthanoid-Containing Coordination Frameworks: Structure, Magnetic and Fluorescent Properties

2005 ◽  
Vol 2005 (4) ◽  
pp. 766-772 ◽  
Author(s):  
Hong-Tao Zhang ◽  
You Song ◽  
Yong-Xiu Li ◽  
Jing-Lin Zuo ◽  
Song Gao ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Fluorescent Properties ◽  
Coordination Frameworks

scholarly journals An Unexpected Trinuclear Cobalt(II) Complex Based on a Half-Salamo-Like Ligand: Synthesis, Crystal Structure, Hirshfeld Surface Analysis, Antimicrobial and Fluorescent Properties

Crystals ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 408 ◽  
Author(s):  
Ruo-Yan Li ◽  
Xiao-Xin An ◽  
Juan-Li Wu ◽  
You-Peng Zhang ◽  
Wen-Kui Dong
Keyword(s):  
Crystal Structure ◽  
Surface Analysis ◽  
Three Dimensional ◽  
Antimicrobial Activities ◽  
Hirshfeld Surface ◽  
Hirshfeld Surface Analysis ◽  
Fluorescent Properties ◽  
X Ray ◽  
X Ray Crystallography ◽  
Elemental Analyses

An unexpected trinuclear Co(II) complex, [Co3(L2)2(μ-OAc)2(CH3OH)2]·2CH3OH (H2L2 = 4,4′-dibromo-2,2′-[ethylenedioxybis(nitrilomethylidyne)]diphenol) constructed from a half-Salamo-based ligand (HL1 = 2-[O-(1-ethyloxyamide)]oxime-4-bromophenol) and Co(OAc)2·4H2O, has been synthesized and characterized by elemental analyses, infrared spectra (IR), UV-Vis spectra, X-ray crystallography and Hirshfeld surface analysis. The Co(II) complex contains three Co(II) atoms, two completely deprotonated (L2)2− units, two bridged acetate molecules, two coordinated methanol molecules and two crystalline methanol molecules, and finally, a three-dimensional supramolecular structure with infinite extension was formed. Interestingly, during the formation of the Co(II) complex, the ligand changed from half-Salamo-like to a symmetrical single Salamo-like ligand due to the bonding interactions of the molecules. In addition, the antimicrobial activities of HL1 and its Co(II) complex were also investigated.

Intensity attenuation of Three-Dimensional, confocal fluorescence images of thick tissue

1995 ◽  
Vol 53 ◽  
pp. 1084-1085
Author(s):  
S. Kayali ◽  
H. Ancin ◽  
B. Roysam ◽  
W. Shain ◽  
D.H. Szarowski ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Rat Hippocampus ◽  
Cell Counting ◽  
Fluorescence Signal ◽  
Data Sets ◽  
Fluorescent Properties ◽  
Confocal Scanning Laser Microscope ◽  
Confocal Scanning ◽  
Dna Specificity ◽  
Confocal Scanning Laser

The confocal scanning laser microscope (CSLM) provides three-dimensional (3-D) images from fixed tissues. These images are obtained by stacking consecutive confocal planes through the depth of a specimen. We have developed software for quantitative analysis of these data sets and have applied these methods to cell counting. A major issue in this analysis is the relative intensity of signal measured from like objects through the depth of the specimen.The rat hippocampus was chosen to test the attenuation of the fluorescence signal allowing us to make observations in areas of higher density-pyramidal cell layer-and lower density -extra-pyramidal regions. Paraformaldehyde fixed specimens were stained with Feulgen-Schiffs acriflavine. This stain was selected for its fluorescent properties and its high DNA specificity. Specimens were mounted in media with different glycerol concentrations. Significant attenuation was observed using a 50:50 mixture of glycerol and buffer, while 100% glycerol provided significantly less attenuation. All data presented here were collected using sections mounted in 100% glycerol. 3-D images were collected from 50-, 75-, and 100-μm thick sections with a 40x oil objective, having an (x,y) resolution of 2 pixels//xm and a distance of 1 fim between optical sections. Fig. 1 is a projection of a 100-μm section of the rat hippocampus illustrating pyramidal and extra-pyramidal areas.

Synthesis, Structure and Photoluminescent Properties of Zn(II) -Complex with 2,4,6-tris-(benzimidazolyl-2-yl)pyridine Ligand

2011 ◽  
Vol 239-242 ◽  
pp. 2997-3000
Author(s):  
Cui Jin Li ◽  
Guo Qiang Yin ◽  
Qing Bing Guo ◽  
Hong Mei Hang ◽  
Xin Hua Zhou ◽  
...  
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Room Temperature ◽  
Hydrothermal Reaction ◽  
Mixed Solvents ◽  
Three Dimensional ◽  
Fluorescent Properties ◽  
Pyridine Ligand ◽  
Supramolecular Networks ◽  
Photoluminescence Studies

This hydrothermal reaction of tridentate rigid 2,4,6-tris-(benzimidazolyl-2-yl)pyridine (pytbzim) ligand, linear bridging 4,4′-bipyridine (4,4′-bpy) ligand and Zn(II) salts in acetonitrile and water mixed solvents generates a new complex {[Zn3I6(4,4′-bpy)(pytbzim)3].(H2O)2.(CH3CN)}n. The asymmetry unit of complex contains a [ZnI2(pytbzim)] and a {[Zn2I2(4,4′-bpy)2(pytbzim)2] units, which further construct into a three-dimensional supramolecular networks through p-p stacking interaction and rich hydrogen bonds between units and solvents. The solid state photoluminescence studies reveal good fluorescent properties of the pytbzim ligand and Zn(II)-complex at room temperature.

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