Results 11 to 20 of about 412,914 (198)

Structural response to O*-O' and magnetic transitions in orthorhombic perovskites [PDF]

open access: yes, 2002
We present a temperature dependent single crystal x-ray diffraction study of twinned orthorhombic perovskites La1-xCaxMnO3, for x=0.16 and x=0.25. These data show the evolution of the crystal structure from the ferromagnetic insulating state to the ...
A. von Hippel   +28 more
core   +4 more sources

N′-[(E)-4-Methylbenzylidene]pyridine-4-carbohydrazide monohydrate

open access: yesIUCrData, 2016
In the title hydrate, C14H13N3O·H2O, the C=N double bond adopts an E conformation and the dihedral angle between the aromatic rings is 16.36 (10)°. In the crystal, N—H...O, O—H...O and O—H...N hydrogen bonds link the components into (001) sheets.
Wanda Pereira Almeida   +2 more
doaj   +1 more source

Redetermination of the crystal structures of rare-earth trirhodium diboride RERh3B2 (RE = Pr, Nd and Sm) from single-crystal X-ray data

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2022
The crystal structures of the rare-earth (RE) trirhodium diborides praseodymium trirhodium diboride, PrRh3B2, neodymium trirhodium diboride, NdRh3B2, and samarium trirhodium diboride, SmRh3B2, were refined on the basis of single-crystal X-ray diffraction
Makoto Tokuda   +3 more
doaj   +1 more source

Methyl 8-oxo-2-phenyl-1-oxaspiro[4.5]deca-2,6,9-triene-3-carboxylate

open access: yesIUCrData, 2016
The title compound, C17H14O4, is a 5/6 spiro-ring fused system, where the five- and six-membered rings are inclined to one another by 89.79 (5)° at the spiro-carbon. In the crystal, non-classical C—H ... O hydrogen bonds form inversion dimers and connect
Ralph C. Gomes   +2 more
doaj   +1 more source

Investigation on thermo-physical properties of L-valinium picrate single crystal for industrial applications

open access: yesMaterials Letters: X, 2021
Good quality L-valinium picrate single crystal was grown by slow evaporation technique. The lattice parameters of the crystal were measured by single crystal X-ray diffraction analysis. The High resolution X-ray diffraction study reveals good crystalline
M. Manivannan   +4 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

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

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

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

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