Results 61 to 70 of about 6,583,249 (150)
Crystals, 2020 Supramolecular chemistry is a very active research field that was initiated in the last century [...]
Antonio Frontera
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Crystal structure of 2-oxo-2H-chromen-3-yl propanoate
Acta Crystallographica Section E: Crystallographic Communications, 2016 In the title compound, C12H10O4, the dihedral angle between the coumarin ring system [maximum deviation = 0.033 (8) Å] and the propionate side chain is 78.48 (8)°.
Eric Ziki +4 more
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Acceleration by Strong Interactions
, 2017 Beyond the attractive strong potential needed for hadronic bound states, strong interactions are predicted to provide repulsive forces depending on the color charges involved.
Erdmann, Martin +2 more
core
Hydrogen bonds and π–π interactions in two new crystalline phases of methylene blue
Acta Crystallographica Section E: Crystallographic Communications, 2018 Two unprecedented solid phases involving the 3,7-bis(dimethylamino)phenothiazin-5-ium cation, i.e. methylene blue (MB+), have been obtained and structurally characterized.
Stefano Canossa +2 more
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Anion–π interactions influence pKa values
Beilstein Journal of Organic Chemistry, 2011 Five 8-(4-R-phenyl)-1-naphthol derivatives were prepared by PdCl2-catalysed electrophilic aromatic substitution. The pKa' values for these 1,8-disubstituted arene naphthols have been measured in acetonitrile/water (R = NO2, 8.42; R = Cl, 8.52; R = H, 8 ...
Christopher J. Cadman, Anna K. Croft
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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 +6 more
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Thermodynamic curvature measures interactions
, 2010 Thermodynamic fluctuation theory originated with Einstein who inverted the relation $S=k_B\ln\Omega$ to express the number of states in terms of entropy: $\Omega= \exp(S/k_B)$.
Arfken G. B. +8 more
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Molecules, 2015 MP2/aug-cc-pVTZ calculations were performed on complexes of aluminium and boron trihydrides and trihalides with acetylene and ethylene. These complexes are linked through triel bonds where the triel center (B or Al) is characterized by the Lewis acid ...
Sławomir J. Grabowski
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Acta Crystallographica Section E: Crystallographic Communications, 2015 In the title compound, C24H18N4O4, the plane of the phenyl ring is inclined to those of the toluene ring and the dinitro-substituted benzene ring by 66.96 (19) and 47.06 (18)°, respectively, while the planes of the two benzene rings are inclined to one ...
Alexander A. Golovanov +4 more
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Fashion, Cooperation, and Social Interactions
, 2012 Fashion plays such a crucial rule in the evolution of culture and society that it is regarded as a second nature to the human being. Also, its impact on economy is quite nontrivial. On what is fashionable, interestingly, there are two viewpoints that are
A Acerbi +47 more
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