Results 11 to 20 of about 415,413 (295)

Comparative crystal structure determination of griseofulvin: Powder X-ray diffraction versus single-crystal X-ray diffraction [PDF]

Chinese Science Bulletin, 2012
In an attempt to compare crystal structure determination from powder data and single-crystal data, crystal structure of griseofulvin (C17H17ClO6) was tested by both powder and single-crystal X-ray diffraction. Lattice parameters of griseofulvin are a=90.0°, a=b=8.9757 A, c=19.9345 A, V=1605.99 A3 from powder data coinciding with α=90.0°, a=b=8.9714 A ...
Pan, QingQing, Guo, Ping, Duan, Jiong, Cheng, Qiang, Li, Hui   +4 more
openaire   +3 more sources

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

IUCrData, 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, Isabela Paes Koury, Deborah de Alencar Simoni   +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

Acta 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, Kunio Yubuta, Toetsu Shishido, Kazumasa Sugiyama   +3 more
doaj   +1 more source

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

IUCrData, 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, Deborah de Alencar Simoni, Fernando Coelho   +2 more
doaj   +1 more source

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

Materials 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, S. Balachandar, M. Jose, S.A. Martin Britto Dhas, A. Saranraj   +4 more
doaj   +1 more source

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

, 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, Auke Meetsma, B. Dabrowski, B. Dabrowski, Bas B. Van Aken, C. Williams, E. Liarokapis, G.A. de Wijs, J. Alonso, J. Kanamori, J. Rodríguez-Carvajal, J.B. Goodenough, J.B. Goodenough, J.B.A.A. Elemans, M. Dechamps, M. Marezio, N.D. Mathur, P.G. Radaelli, Q. Huang, R.D. Shannon, S.J. Hibble, S.J.L. Billinge, T. Mizokawa, Thomas T. M. Palstra, V.M. Goldschmidt, Y. Murakami, Y. Tokura, Y. Tomioka, Y. Yamada   +28 more
core   +4 more sources

Comments on DFT calculation, biological activity, anion sensing studies and crystal structure of (E)-4-chloro-2-((pyridin-2-ylimino)-methyl)phenol by Nuray Yıldırım, Neslihan Demir, Gökhan Alpaslan, Bahadir Boyacıoğlu, Mustafa Yıldız, and Huseyin Ünver, published in the Journal of the Serbian Chemical Society, volume 83, issue 6, 2018, pp. 707-721 [PDF]

Journal of the Serbian Chemical Society, 2019
The crystal structure of (E)-4-chloro-2-((pyridin-2-ylimino)-methyl)- phenol, recently published by Yıldırım et al. in J. Serb. Chem. Soc. 83 (2018) 707–721, is revised.
Rodić Marko V.
doaj   +1 more source

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

Molecules, 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, Petru Pascuta, Liviu Mare, Gheorghe Borodi, Violeta Popescu   +4 more
doaj   +1 more source

Synthesis and structure of the inclusion complex {NdQ[5]K@Q[10](H₂O)4}·4NO₃·20H₂O [PDF]

, 2017
Heating a mixture of Nd(NO₃)₃·6H₂O, KCl, Q[10] and Q[5] in HCl for 10 min affords the inclusion complex {NdQ[5]K@Q[10](H₂O)₄}·4NO₃·20H₂O. The structure of the inclusion complex has been investigated by single crystal X-ray diffraction and by X-ray ...
Chen, Li Xia, Cong, Hang, Kan, Jing, Kan, Jing Lan, Prior, Timothy J., Redshaw, Carl, Tao, Zhu, Xiao, Xin   +7 more
core   +2 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

Acta 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, Deborah de Alencar Simoni, Ricardo Aparicio, Fernando Coelho   +3 more
doaj   +1 more source