Results 21 to 30 of about 681,871 (269)

Supramolecular organic frameworks with ultralong phosphorescence via breaking π-Conjugated structures

open access: yesGiant, 2020
Development of crystalline porous materials with luminescent properties have gradually attracted attention for their potential applications in drug delivery, bioimaging, photoelectronic and so on.
Wei Yao   +11 more
doaj   +1 more source

Cathodoluminescence of stacking fault bound excitons for local probing of the exciton diffusion length in single GaN nanowires [PDF]

open access: yes, 2014
We perform correlated studies of individual GaN nanowires in scanning electron microscopy combined to low temperature cathodoluminescence, microphotoluminescence, and scanning transmission electron microscopy.
Bruno Daudin   +5 more
core   +4 more sources

1-Methyl-3-(2-methylphenyl)-4-phenyl-1H-pyrazolo[3,4-d]pyrimidine

open access: yesIUCrData, 2017
In the title compound, C19H16N4, the pyrazolopyrimidine unit is slightly twisted. A combination of π-stacking and offset π-stacking interactions forms columns along the b-axis direction.
Mohamed El Hafi   +5 more
doaj   +1 more source

The Grapefruit Effect: Interaction between Cytochrome P450 and Coumarin Food Components, Bergamottin, Fraxidin and Osthole. X-ray Crystal Structure and DFT Studies

open access: yesMolecules, 2020
Coumarins are plant-derived secondary metabolites. The crystal structure of three coumarins—bergamottin, osthole and fraxidin—are described and we analyze intermolecular interactions and their role in crystal formation.
Miriam Rossi   +7 more
doaj   +1 more source

4-{(E)-[(2-Hydroxynaphthalen-1-yl)methylidene]amino}-1,5-dimethyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-one: a new polymorph (β-phase)

open access: yesIUCrData, 2017
The title molecule, C22H19N3O2, is a new polymorphic modification, viz. the β-phase; the α-phase has been previously published [Liang & Wang (2010). Acta Cryst. E66, o1968–o1969].
Shaaban K. Mohamed   +4 more
doaj   +1 more source

A dibenzofuran derivative: 2-(pentyloxy)dibenzo[b,d]furan

open access: yesIUCrData, 2018
The title compound, C17H18O2, crystallizes in two-dimensional sheets, in which the 2-(pentyloxy)dibenzo[b,d]furan molecules are arranged in a head-to-head and tail-to-tail fashion that enables hydrophobic interactions between fully extended 2-pentoxy ...
Navneet Goyal   +5 more
doaj   +1 more source

Crystal structure and Hirshfeld surface analysis of (E)-2-(2,4,6-trimethylbenzylidene)-3,4-dihydronaphthalen-1(2H)-one

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2019
A novel chalcone, C20H20O, derived from benzylidenetetralone, was synthesized via Claissen–Schmidt condensation between tetralone and 2,4,6-trimethylbenzaldehyde.
Cemile Baydere   +5 more
doaj   +1 more source

Implications of a 20-Hz Booster cycle-rate for Slip-stacking [PDF]

open access: yes, 2014
We examine the potential impacts to slip-stacking from a change of the Booster cycle-rate from 15- to 20-Hz. We find that changing the Booster cycle-rate to 20-Hz would greatly increase the slip-stacking bucket area, while potentially requiring greater ...
Eldred, Jeffrey, Zwaska, Robert
core   +1 more source

(4-Aminosulfonylphenyl)[(2-oxidonaphthalen-1-yl)imino]azanium

open access: yesIUCrData, 2016
The crystal structure of the title compound, C16H13N3O3S, shows that the two independent zwitterions in the asymmetric unit are approximately planar.
A. Benosmane   +4 more
doaj   +1 more source

Stacking the Equiangular Spiral [PDF]

open access: yes, 2013
We present an algorithm that adapts the mature Stack and Draw (SaD) methodology for fabricating the exotic Equiangular Spiral Photonic Crystal Fiber.
Agrawal, A., Azabi, Y. O., Rahman, B. M.
core   +2 more sources

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