Results 11 to 20 of about 86,769 (239)

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

Strength of π-Stacking, from Neutral to Cation: Precision Measurement of Binding Energies in an Isolated π-Stacked Dimer [PDF]

open access: yes, 2018
π-Stacking interactions are ubiquitious across chemistry and biochemistry, impacting areas from organic materials and photovoltaics to biochemistry and DNA.
Cai, Jin-Zhe   +5 more
core   +4 more sources

Conformational modulation of sequence recognition in synthetic macromolecules [PDF]

open access: yes, 2011
The different triplet sequences in high molecular weight aromatic copolyimides comprising pyromellitimide units ("I") flanked by either ether-ketone ("K") or ether-sulfone residues ("S") show different binding strengths for pyrene-based tweezer-molecules.
Cardin, Christine   +6 more
core   +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

Spectroscopic study of proflavine adsorption on the carbon nanotube surface [PDF]

open access: yes, 2014
The present paper sheds light on one of the possible mechanisms of interaction between the typical aromatic dye proflavine and the carbon nanotube surface, namely, π-stacking between aromatic rings of these compounds.
Anatoly S. Buchelnikov   +5 more
core   +1 more source

Molecular design of orthogonal stacking system at the complex interface of HtrA PDZ domain with its peptide ligands [PDF]

open access: yesJournal of the Serbian Chemical Society, 2019
The high temperature requirement A (HtrA) protease plays a crucial role in protein quality control and cell fate. The enzyme contains a catalytic protease domain and a regulatory PDZ domain; the latter determines the substrate specificity of the former ...
Zhang Dingwa   +4 more
doaj   +1 more source

On the importance of π–π stacking and cation–anion interactions in the construction of non-centrosymmetric networks of bromide salts of imidazolium cations bearing arene and polyfluoroarene rings [PDF]

open access: yes, 2011
The salt 1-(2,3,5,6-tetrafluoropyridyl)-3-benzylimidazolium bromide crystallizes in the non-centrosymmetric space group Pna2₁. The structure arises from π–π stacking between the benzyl and tetrafluoropyridyl groups of the cations and cation–bromide ...
Saunders, Graham C.
core   +2 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

A palladium-hinged organometallic square with a perfect-sized cavity for the encapsulation of three heteroguests [PDF]

open access: yes, 2019
This is a pre-print of an article published in Chemical Communications. The final authenticated version is available online at: https://doi.org/10.1039/C9CC08595E.A nanometer-sized tetrapalladium metallosquare with a pyrene-bisimidazolylidene ligand was ...
Martínez‐Agramunt, Victor   +1 more
core   +1 more source

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

Home - About - Disclaimer - Privacy