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Tripoli, Libya. 3Biotechnology Research Center, Tripoli, Libya. 4Department of Chemistry, Zawia University, Zawia, Libya. 5Chemistry Department, Faculty of Education, Azzaytuna University.
The structure of the obtained chalcone was confirmed by spectroscopic techniques such as FTIR, 1H, and 13C NMR spectroscopy.
Assessment of flavonoids contents and in vitro antioxidant activity of Launaea procumbens, Chemistry Central Journal. 43 (2012) 1–11
Ghufran, Chalcones and Bis-Chalcones: As Potential α-Amylase Inhibitors; Synthesis, In Vitro Screening, and Molecular Modelling Studies, Bioorganic Chemistry. 79 (2018) 179–189
Fahim, Synthesis, reactions and application of chalcones: a systematic review, Organic & Biomolecular Chemistry. 21 (2023) 5317–5346

bDepartment of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
Dice-like and flower-like structures were obtained from the effects of by-product’s acidity to the morphology of copper oxalate (Cu(C2O4)).
Result and Discussion Crystalline structure of CuO.
Dice-like structures of CuO were dominant in CS, CN, CCl while agglomerated flower-like morphology was observed for the CA sample.
[ 22 ] Atkins P. and de Paula, J.: Physical Chemistry 8th ed.; Oxford University Press: New York; 2006

Burrows1,f 1 Department of Chemistry, University of Coimbra, 3004 - 535 Coimbra, Portugal a anacfrib@ci.uc.pt, bceciliaisabel_santos@sapo.pt,cvlobo.uc.pt, davalente@ci.uc.pt, e pedro.hiilario@gmail.com, fburrows@ci.uc.pt Keywords: carbohydrate, diffusion coefficient, aqueous solutions, physiological temperature.
The concentration dependence of the diffusion coefficients at physiological temperature, 37 ºC, is discussed on the basis of their structures.
Hopefully, these studies will lead to knowhow that will allow a better understanding of the physical chemistry conditions underlining the diffusion phenomena occurring in different physiological situations (e.g. the human oral cavity).
The behavior of diffusion of these carbohydrates, as typical non-electrolytes, is strongly dependent on their structure and much less on their concentration, as shown by Fig.1 and Table1.
Molecular structures and molecular weights of different sacharides.

Fluorescent zinc blende structured pure and Mn2+ doped ZnS quantum dots were prepared by simple aqueous based technique at room temperature.
Results and Discussion By X-ray diffraction analysis, it was found that prepared ZnS are crystalline, with cubic zinc blend structure.
The ZnS:Mn2+ QDs exhibit faster methylene blue decolorization ratio that known catalysts such as Degussa P25, Fenton-like catalyst and plasmonic photocatalytic structures.
Explaining the enhanced photocatalytic activity of Degussa P25 mixed-phase TiO2 using EPR, The Journal of Physical Chemistry B, 107(19) (2003) 4545-4549
Emission properties of manganese-doped ZnS nanocrystals, The Journal of Physical Chemistry B, 109(5) (2005) 1663-1668

It is used in the synthesis of segmented polyurethanes and polyester thermoplastic elastomers It should be noted that during copolycondensation, the structure of the resulting polymers is determined by the reactivity of the starting materials.
Erofeeva, Polycarbonates, Chemistry, Moscow, 1975
Series: Chemistry and Chemical Technology. 57 (2014) 65-67
Moiseeva, Ed., Thermoplastic elastomers, Chemistry, Moscow, 1985
Egorov, Differential scanning calorimetry in the physical chemistry of polymers, Chemistry, Leningrad, 1990

An important point is the synthesis of nanoparticles with different chemical composition, sizes, shapes and structures [3].
Price: Applications of Ultrasound to Materials Chemistry, Annual Review of Materials Science Vol. 29(1999), p. 295-326 [2] B.G.
Walton: The effect of ultrasound upon the oxidation of thiosulphate on stainless steel and platinum electrodes, Ultrasonics sonochemistry Vol. 9(5) (2002), p. 267-274 [3] Burda, Clemens: Chemistry and Properties of Nanocrystals of Different Shapes, Chemical Reviews - Columbus Vol. 105 (4) (2005), p. 1025-1102 [4] Alivisatos, A.
Paul: Perspectives on the Physical Chemistry of Semiconductor Nanocrystals, The Journal of Physical Chemistry Vol. 100(31) (1996), p. 13226-13239 [5] Elechiguerra, Jose Luis, Reyes-Gasga, Jose and Yacaman, Miguel Jose: The Role of Twinning in Shape Evolution of Anisotropic Noble Metal Nanostructures.
Chemistry Vol.16 (40) (2006), p. 3906-3919 [6] Pankhurst, Quentin A: Applications of Magnetic Nanoparticles in Biomedicine, Journal of Physics D: Applied Physics Vol. 36(13) (2003), p.

NSCS showed self-assembly behaviour as nanofiber structures onto PUR surface.
(A) Representation of the chemistry used for covalent binding of HSA to AFM tip.
Aiping et al [1]. reported on the chemical structure of NSCS.
The uncoated PUR shows rough and irregular surface while the film obtained by NSCS coating presents regular nanofiber structure.
Schematic representation of the tip modification chemistry is shown in Fig. 1.

Other important criteria include thermal stability, handling, economics and the compatibility of the PCM with structural materials and heat transfer enhancement structures.
Meeker: Inorganic Chemistry Vol. 22 (1983), p. 716-721
Laue et al.: Nitrates and Nitrites, in Ullmann's Encycl. of Industrial Chemistry (1998) 6.
Lide: Physical Constants of Inorganic Compounds, in CRC Handbook of Chemistry and Physics, Taylor & Francis (2006-2007) 87.
Davis: Journal of Physical Chemistry Vol. 74 (1970), p. 725-730

The scanning electron microscope images and elements analysis confirm that the surface of iron powders particles were covered by a thin insulating layer in the form of uniform core-shell structure.
The structure analysis and phase identification for the prepared composites were characterized by Scanning Electron Microscopy (SEM, FEI Quanta 650) and X-ray diffraction (XRD, Bruker D8), respectively.
[3] Wu, S., Sun, A., Lu, Z., & Cheng, C, Fabrication and properties of iron-based soft magnetic composites coated with parylene via chemical vapor deposition polymerization, Materials Chemistry and Physics. 153 (2015) 359-364
The Journal of Physical Chemistry C. (2019) [15] Li, J., Yu, J., Li, W., Che, S., Zheng, J., Qiao, L., & Ying, Y, The preparation and magnetic performance of the iron-based soft magnetic composites with the Fe@Fe3O4 powder of in situ surface oxidation, Journal of Magnetism and Magnetic Materials. 454 (2018) 103-109
[17] Li, W., Cai, H., Kang, Y., Ying, Y., Yu, J., Zheng, J., Qiao, L., Jiang, Y., Che, S, High permeability and low loss bioinspired soft magnetic composites with nacre-like structure for high frequency applications, Acta Materialia. 167 (2019) 267-274.

The structure of EFBDPA was confirmed by FTIR and 1H-NMR.
The structure of EFBDPA was characterized and the performance of the cured coating of EFBDPA was studied.
Therefore, combined the analysis results of infrared and NMR, the structure of EFBDPA can be confirmed.  
Diagram (B) is the cross-sectional view for the cured coating of EFBDPA, we can find that there are thick stripes and the mesh structure in it.
Materials Chemistry and Physics, 2011, 125: 196~201 [11] Huang Z G, Shi W F.