Results 61 to 70 of about 3,122,862 (161)

N-Centered Chiral Self-Sorting and Supramolecular Helix of Tröger's Base-Based Dimeric Macrocycles in Crystalline State

open access: yesFrontiers in Chemistry, 2019
Three stereoisomers of Tröger's Base-based dimeric macrocycles Trögerophane 1 (T1) including one pair of enantiomers (rac-T1) and one meso isomer (R2NS2N-T1) were obtained and fully characterized by X-ray analysis.
Yuan Chen   +9 more
doaj   +1 more source

(5Z)-3-(2-Oxopropyl)-5-(3,4,5-trimethoxybenzylidene)-1,3-thiazolidine-2,4-dione

open access: yesIUCrData, 2016
In the crystal of the title molecule, C16H17NO6S, there are three sets of intermolecular C—H...O hydrogen bonds, as well as two sets of intermolecular C—H...π(ring) interactions.
Joel T. Mague   +5 more
doaj   +1 more source

The use of a molecular balance derived from 5,5′-bipyrazole to calculate π-π stacking interactions

open access: yes, 2013
Theoretical calculations have been carried out on 3,3′-dimethyl-1,1′-diphenyl-5,5′-bi-1H-pyrazole to evaluate its usefulness as a molecular balance to measure π-π stacking.
Elguero, José   +2 more
core   +1 more source

Applications of Computational Protein Design [PDF]

open access: yes, 2006
Computational protein design determines the amino acid sequence(s) that will adopt a desired fold. It allows the sampling of a large sequence space in a short amount of time compared to experimental methods.
Mao, Jessica
core   +1 more source

Crystal structure of 3-(3,4-dimethylanilino)-2-benzofuran-1(3H)-one

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C16H15NO2, the 2-benzofuran-1(3H)-one and 3,4-dimethylaniline fragments are oriented with a dihedral angle of 89.12 (5)°. N—H...O hydrogen-bond interactions join molecules into C(6) chains propagating along the a axis. In addition,
Muhammad Salim   +3 more
doaj   +1 more source

Propostas didáticas para o ensino do número π [PDF]

open access: yes, 2013
TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Matemática.Este Trabalho de Conclusão de Curso trata de propostas didáticas para o ensino do número π na educação básica.
Machado, Djeison
core  

The Role of π−π Stacking Interactions in Square Planar Palladium Complexes. Combined Quantum Mechanics/Molecular Mechanics QM/MM Studies

open access: yes, 2016
Density functional (DFT) studies and hybrid QM/MM-DFT calculations demonstrate the importance of π−π stacking interactions in determining the structural features of two exemplary d8 palladium complexes, PdBr(p-NCC6H4)({S}-MeO-Biphep), 1, and PdBr(C6F5 ...
Paul S. Pregosin (2275423)   +3 more
core   +1 more source

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