Results 11 to 20 of about 681,871 (269)

π-π stacking interactions: Non-negligible forces for stabilizing porous supramolecular frameworks. [PDF]

open access: yesSci Adv, 2020
Collective weakness makes strength: A case of multiple π-π stacking interactions stabilizing a porous supramolecular framework. Revealing the contribution of π-π stacking interactions in supramolecular assembly is important for understanding the ...
Deng JH   +6 more
europepmc   +2 more sources

Control over π-π stacking of heteroheptacene-based nonfullerene acceptors for 16% efficiency polymer solar cells. [PDF]

open access: yesNatl Sci Rev, 2020
Nonfullerene acceptors are being investigated for use in polymer solar cells (PSCs), with their advantages of extending the absorption range, reducing the energy loss and therefore enhancing the power conversion efficiency (PCE).
Ma Y   +6 more
europepmc   +2 more sources

Intermolecular π-π Stacking Interactions Made Visible. [PDF]

open access: yesJ Chem Educ, 2021
Mixing the liquids hexafluorobenzene (1) and 1,3,5-trimethylbenzene (mesitylene, 2) results in a crystalline solid with a melting point of 34 °C. The solid consists of alternating π–π stacked pillars of both aromatics.
Timmer BJJ, Mooibroek TJ.
europepmc   +2 more sources

Enhanced π-π Stacking between Dipole-Bearing Single Molecules Revealed by Conductance Measurement.

open access: yesJournal of the American Chemical Society, 2023
Dipoles are widely involved in π-π interactions and are central to many chemical and biological functions, but their influence on the strength of π-π interactions remains unclear.
Chengyang Zhang   +9 more
semanticscholar   +1 more source

π-Stacking Stopper-Macrocycle Stabilized Dynamically Interlocked [2]Rotaxanes

open access: yesMolecules, 2021
The synthesis of mechanically interlocked molecules is valuable due to their unique topologies. With π-stacking intercomponent interaction, e.g., phenanthroline and anthracene, novel [2]rotaxanes have been synthesized by dynamic imine clipping reaction ...
Sing-Ming Chan   +5 more
doaj   +1 more source

3-Methyl-5-(4-methylphenoxy)-1-phenyl-1H-pyrazole-4-carbaldehyde

open access: yesIUCrData, 2022
In the title compound, C18H16N2O2, the phenyl and pyrazole rings subtend a dihedral angle of 22.68 (8)°. The packing of the title compound features aromatic π–π stacking and weak C—H...π interactions.
Sreeramapura D. Archana   +5 more
doaj   +1 more source

Differences in thermal expansion and motion ability for herringbone and face-to-face π-stacked solids

open access: yesIUCrJ, 2022
A series of aromatic organic molecules functionalized with different halogen atoms (I/ Br), motion-capable groups (olefin, azo or imine) and molecular length were designed and synthesized.
Xiaodan Ding   +3 more
doaj   +1 more source

Crystal structures of five (2-chloroquinolin-3-yl)methyl ethers: supramolecular assembly in one and two dimensions mediated by hydrogen bonding and π–π stacking

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the molecules of the title compounds, methyl 5-bromo-2-[(2-chloroquinolin-3-yl)methoxy]benzoate, C18H13BrClNO3, (I), methyl 5-bromo-2-[(2-chloro-6-methylquinolin-3-yl)methoxy]benzoate, C19H15BrClNO3, (II), methyl 2-[(2-chloro-6-methylquinolin-3-yl ...
Haliwana B. V. Sowmya   +6 more
doaj   +1 more source

Stacking-symmetry governed second harmonic generation in graphene trilayers [PDF]

open access: yes, 2018
Crystal symmetry plays a central role in governing a wide range of fundamental physical phenomena. One example is the nonlinear optical second harmonic generation (SHG), which requires inversion symmetry breaking. Here we report a unique stacking-induced
Huang, Di   +6 more
core   +2 more sources

N-Methyl-N-nitroso-p-toluenesulfonamide

open access: yesActa Crystallographica Section E, 2014
The crystal structure of the title compound, C8H10N2O3S, displays predominant C—H...O hydrogen-bonding and π–π stacking interactions. The hydrogen bonds are between the O atoms of the sulfonyl group and H atoms on methyl groups.
Kartik Rai   +4 more
doaj   +1 more source

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