Results 21 to 30 of about 11,321,876 (282)

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

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

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

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

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

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

Crystallography and DFT Studies of Synthesized Tetraketones

open access: yesActa Chimica Slovenica, 2022
Two tetraketone derivatives, one previously reported and one novel, were synthesized, whose structures have been confirmed by elemental analyses, NMR, HPLC-MS, and IR spectroscopy.
Elma Veljović   +6 more
doaj   +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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