Results 31 to 40 of about 68,979 (246)

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

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

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

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)

IUCrData, 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, Joel T. Mague, Mehmet Akkurt, Mustafa R. Albayati, Alaa F. Mohamed   +4 more
doaj   +1 more source

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

IUCrData, 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, James P. Donahue, Camilla Do, Timothy Perry, Kyla Bongay-Williams, Maryam Foroozesh   +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

Acta 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, Merve Taşçı, Necmi Dege, Mustafa Arslan, Yusuf Atalay, Irina A. Golenya   +5 more
doaj   +1 more source

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

IUCrData, 2016
The crystal structure of the title compound, C16H13N3O3S, shows that the two independent zwitterions in the asymmetric unit are approximately planar.
A. Benosmane, D. A. Rouag, A. Mili, H. Merazig, M. A. Benaouida   +4 more
doaj   +1 more source

Arylene Ethynylene Macrocycles with Intramolecular π−π Stacking [PDF]

, 2016
Arylene ethynylene macrocycles containing 9,10-anthrylene or 1,4-naphthylene units were synthesized. In chloroform, significant resonance upfield shifting was observed with β-protons of anthrylene and naphthylene in NMR spectra.
Dahui Zhao (1342095), Shusen Chen (2254489), Tian Li (194773), Qifan Yan (1342089)   +3 more
core   +1 more source

π–π Stacking Mediated Chirality in Functional Supramolecular Filaments [PDF]

, 2016
While a great diversity of peptide-based supramolecular filaments have been reported, the impact of an auxiliary segment on the chiral assembly of peptides remains poorly understood.
Pengcheng Zhang (565544), Myungshim Kang (1420300), Sharon M. Loverde (657483), Honggang Cui (1309740)   +3 more
core   +1 more source

Influence of perylenediimide–pyrene supramolecular interactions on the stability of DNA-based hybrids: Importance of electrostatic complementarity

Beilstein Journal of Organic Chemistry, 2014
Aromatic π–π stacking interactions are ubiquitous in nature, medicinal chemistry and materials sciences. They play a crucial role in the stacking of nucleobases, thus stabilising the DNA double helix.
Christian B. Winiger, Simon M. Langenegger, Oleg Khorev, Robert Häner   +3 more
doaj   +1 more source