Results 11 to 20 of about 454,694 (225)

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

Molecules, 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, Fung-Kit Tang, Ching-Yau Lam, Chak-Shing Kwan, Sam C. K. Hau, Ken Cham-Fai Leung   +5 more
doaj   +1 more source

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

IUCrData, 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, Holalagudu A. Nagma Banu, Balakrishna Kalluraya, Hemmige S. Yathirajan, Rishik Balerao, Ray J. Butcher   +5 more
doaj   +1 more source

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

IUCrJ, 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, Ethan Zahid, Daniel K. Unruh, Kristin M. Hutchins   +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

Acta 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, Tholappanavara H. Suresha Kumara, Nagendrappa Gopalpur, Jerry P. Jasinski, Sean P. Millikan, Hemmige S. Yathirajan, Christopher Glidewell   +6 more
doaj   +1 more source

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

, 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, Li, Yingguo, Liu, Wei-Tao, Shan, Yuwei, Tong, Qingjun, Wu, Shiwei, Yao, Wang   +6 more
core   +2 more sources

N-Methyl-N-nitroso-p-toluenesulfonamide

Acta 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, Vincent Wu, Priya Gupta, David A. Laviska, Benny C. Chan   +4 more
doaj   +1 more source

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

Giant, 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, Chaoqun Ma, Huili Ma, Lishun Fu, Song Lu, Anqi Lv, Suzhi Cai, Xiaochun Hang, Manjeet Singh, Huifang Shi, Zhongfu An, Wei Huang   +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]

, 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, Bruno Gayral, Gilles Nogues, Martien Den Hertog, Shockley W., Thomas Auzelle   +5 more
core   +4 more sources

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

Molecules, 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, Sandjida Aktar, Marissa Davis, Emily Hefter Feuss, Samara Roman-Holba, Kelly Wen, Christopher Gahn, Francesco Caruso   +7 more
doaj   +1 more source

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

IUCrData, 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, Mohammed Boulhaoua, Youssef Ramli, Mohammed Benchidmi, El Mokhtar Essassi, Joel T. Mague   +5 more
doaj   +1 more source