Study on the relationship between retention behavior and molecular structure parameters of substituted benzene derivatives in RPLC

1996 ◽  
Vol 42 (1-2) ◽  
pp. 43-48 ◽  
Author(s):  
Z. L. Sun ◽  
L. J. Song ◽  
X. T. Zhang ◽  
Z. D. Hu
Keyword(s):  
Molecular Structure ◽  
Structure Parameters ◽  
Benzene Derivatives ◽  
Retention Behavior ◽  
The Relationship

The crystal and molecular structure of tris(1-aza-2-cyclononanone-O)-trichlorochromium(III) complex

1982 ◽  
Vol 47 (9) ◽  
pp. 2403-2414 ◽  
Author(s):  
Jindřich Hašek ◽  
Karel Huml ◽  
Jiří Ječný ◽  
Rudolf Puffr
Keyword(s):  
Molecular Structure ◽  
Title Compound ◽  
Crystal And Molecular Structure ◽  
Amide Group ◽  
Structure Parameters ◽  
Unit Cell Parameters ◽  
Monoclinic System ◽  
Cell Parameters ◽  
Monodentate Ligands ◽  
The Relationship

The title compound crystallizes in the monoclinic system, has the P21/c space group, and the unit cell parameters are a = 1 484.4(8), b = 1 522.8(8), c = 1 854.0(8) pm, β = 96.36(4)°, Z = 4. The structure consists of molecules of an electroneutral complex interconnected only through the van der Waals forces. Solvent is nonstoichiometrically incorporated in the crystals. Octanolactam monodentate ligands are coordinated through oxygen atoms to Cr(III) and have the cis-conformation of the amide group. The relationship between structure parameters of the amide group, their change caused by coordination and the reactivity of the amide group to nucleophilic substitution are discussed using the example of octanolactam polymerization.

The Effect of Donor Molecular Structure on Power Conversion Efficiency of Small-Molecule-Based Organic Solar Cells

2019 ◽  
Vol 16 (3) ◽  
pp. 236-243 ◽  
Author(s):  
Hui Zhang ◽  
Yibing Ma ◽  
Youyi Sun ◽  
Jialei Liu ◽  
Yaqing Liu ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Power Conversion ◽  
The Relationship

In this review, small-molecule donors for application in organic solar cells reported in the last three years are highlighted. Especially, the effect of donor molecular structure on power conversion efficiency of organic solar cells is reported in detail. Furthermore, the mechanism is proposed and discussed for explaining the relationship between structure and power conversion efficiency. These results and discussions draw some rules for rational donor molecular design, which is very important for further improving the power conversion efficiency of organic solar cells based on the small-molecule donor.

scholarly journals Experimental-numerical studies of the effect of cell structure on the mechanical properties of polypropylene foams

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 713-723
Author(s):  
Wei Gong ◽  
Tuan-Hui Jiang ◽  
Xiang-Bu Zeng ◽  
Li He ◽  
Chun Zhang
Keyword(s):  
Mechanical Properties ◽  
Size Distribution ◽  
Cell Size ◽  
Cell Structure ◽  
Structure Parameters ◽  
Cell Size Distribution ◽  
Numerical Studies ◽  
Polypropylene Foam ◽  
The Impact ◽  
The Relationship

AbstractThe effects of the cell size and distribution on the mechanical properties of polypropylene foam were simulated and analyzed by finite element modeling with ANSYS and supporting experiments. The results show that the reduced cell size and narrow size distribution have beneficial influences on both the tensile and impact strengths. Decreasing the cell size or narrowing the cell size distribution was more effective for increasing the impact strength than the tensile strength in the same case. The relationship between the mechanical properties and cell structure parameters has a good correlation with the theoretical model.

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