Results 21 to 30 of about 191,600 (185)

Crystal structure of methyl 2-(2H-1,3-benzodioxol-5-yl)-7,9-dibromo-8-oxo-1-oxaspiro[4.5]deca-2,6,9-triene-3-carboxylate

open access: yesActa Crystallographica Section E, 2014
The title compound, C18H12Br2O6, was synthesized from Morita–Baylis–Hillman adducts. It incorporates the brominated spiro-hexadienone moiety typically exhibited by compounds of this class that exhibit biological activity.
Lucimara Julio Martins   +3 more
doaj   +1 more source

Structural Insights and Intermolecular Energy for Some Medium and Long-Chain Testosterone Esters

open access: yesMolecules, 2023
Testosterone (17β-Hydroxyandrost-4-en-3-one) is the primary male anabolic-androgenic steroid. The crystal structures of two medium and two long esterified forms of testosterone, including enanthate, cypionate, decanoate and undecanoate, were determined ...
Alexandru Turza   +4 more
doaj   +1 more source

Growth and Characterization of 1, 2, 3- Benzotriazole 2-chloro 4-nitrobenzoic Acid (BCNB) Single Crystal for NLO Applications [PDF]

open access: yesProgress in Physics of Applied Materials, 2022
The organic single crystal of 1,2,3- benzotriazole 2-chloro 4-nitrobenzoic acid (BCNB) was successfully grown by slow evaporation solution method using methanol as a solvent.
B. Sahaya Infant Lasalle   +4 more
doaj   +1 more source

Crystal structure of 3-methoxycarbonyl-2-(4-methoxyphenyl)-8-oxo-1-azaspiro[4.5]deca-1,6,9-trien-1-ium-1-olate

open access: yesActa Crystallographica Section E, 2014
The title compound, C18H17NO5, was prepared by a synthetic strategy based on the Heck reaction from Morita–Baylis–Hillman adducts. The five-membered ring adopts a slightly twisted conformation on the Ca—Cm (a = aromatic and m = methylene) bond.
Lucimara Julio Martins   +3 more
doaj   +1 more source

Characterization of Photonic Colloidal Single Crystals by Microradian X‐ray Diffraction [PDF]

open access: yesAdvanced Materials, 2006
Photonic crystals (PCs) can provide unprecedented control over both the emission and the propagation of light, allowing important applications in, for example, infrared telecommunications. [1–3] However, fabrication and characterization of PCs is challenging owing to the large refractive-index contrast that is needed to open up a photonic bandgap.
Thijssen, J.H.J.   +6 more
openaire   +5 more sources

MicroED and its Impact on Form Space Elucidation [PDF]

open access: yesStructural Dynamics
Understanding the solid form landscape of pharmaceuticals is crucial to the success of product development. Crystallization and crystal structure determination play a central role in this endeavor.
Roger D Sommer
doaj   +1 more source

Ca2CuO2Cl2, a redetermination from single-crystal X-ray diffraction data

open access: yesIUCrData, 2018
The crystal structure of Ca2CuO2Cl2, dicalcium oxidocuprate(II) dichloride, was redetermined on the basis of single-crystal X-ray diffraction data using a laboratory Mo anode. Previous structure determinations based on single-crystal X-ray data [Grande &
Benoît Baptiste   +4 more
doaj   +1 more source

Nanocrystalline materials studied by powder diffraction line profile analysis [PDF]

open access: yes, 2007
X-ray powder diffraction is a powerful tool for characterising the microstructure of crystalline materials in terms of size and strain. It is widely applied for nanocrystalline materials, especially since other methods, in particular electron microscopy ...
Gubicza, Jenő, Ungár, Tamás
core   +1 more source

Limitations of Structural Insight into Ultrafast Melting of Solid Materials with X-ray Diffraction Imaging

open access: yesApplied Sciences, 2021
In this work, we analyze the application of X-ray diffraction imaging techniques to follow ultrafast structural transitions in solid materials using the example of an X-ray pump–X-ray probe experiment with a single-crystal silicon performed at a Linac ...
Victor Tkachenko   +6 more
doaj   +1 more source

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