Results 21 to 30 of about 192,399 (285)

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

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

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

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

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

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

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

Advances in martensitic transformations in Cu-based shape memory alloys achieved by in situ neutron and synchrotron X-ray diffraction methods [PDF]

open access: yes, 2012
This article deals with the application of several X-ray and neutron diffraction methods to investigate the mechanics of a stress induced martensitic transformation in Cu-based shape memory alloy polycrystals. It puts experimental results obtained by two
Sophie Berveiller   +7 more
core   +1 more source

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