Results 51 to 60 of about 2,329,162 (396)
4-Amino-1H-1,2,4-triazol-1-ium nitrate
Acta Crystallographica Section E, 2011 The non-centrosymmetric crystal structure of the novel semi-organic title compound, C2H5N4+·NO3−, is based on alternating layers of 4-amino-1H-1,2,4-triazolinium cations (formed by parallel chains of cations mediated by weak C& ...
Ivan Němec +2 more
doaj +1 more source
Soliton model for proton conductivity in Langmuir films [PDF]
, 2001 A soliton model for proton conductivity in Langmuir films is presented. The model contains three real scalar fields describing the hydrogen involved in the conduction, the hydrophilic head of the Langmuir film, and the water.
B.H.B. Lima +29 more
core +2 more sources
N+-C-H···O Hydrogen bonds in protein-ligand complexes
Scientific Reports, 2019 In the context of drug design, C-H···O hydrogen bonds have received little attention so far, mostly because they are considered weak relative to other noncovalent interactions such as O-H···O hydrogen bonds, π/π interactions, and van der Waals ...
Yukihiro Itoh +8 more
semanticscholar +1 more source
2-Amino-4-methylpyrimidinium dihydrogen phosphate
Acta Crystallographica Section E, 2013 A charge-assisted hydrogen-bonding network involving N—H...O and O—H...O hydrogen bonds stabilizes the crystal of the title salt, C5H8N3+·H2PO4−.
Sajesh P. Thomas, Jyothi Sunkari
doaj +1 more source
Hydrogen release at metal-oxide interfaces: A first principle study of hydrogenated Al/SiO$_2$ interfaces [PDF]
, 2016 The Anode Hydrogen Release (AHR) mechanism at interfaces is responsible for the generation of defects, that traps charge carriers and can induce dielectric breakdown in Metal-Oxide-Semiconductor Field Effect Transistors. The AHR has been extensively studied at Si/SiO$_2$ interfaces but its characteristics at metal-silica interfaces remain unclear.
arxiv +1 more source
Seeking for ultrashort "non-bonded" hydrogen-hydrogen contacts in some rigid hydrocarbons and their chlorinated derivatives [PDF]
Structural Chemistry 25 (2014) 1297, 2013 In this communication a systematic computational survey on some rigid hydrocarbon skeletons, e.g. half-cage pentacyclododecanes and tetracyclododecanes, and their chlorinated derivatives in order to seek for the so-called ultrashort "non-bonded" hydrogen-hydrogen contacts is done.
arxiv +1 more source
Ethyl 4-(4-hydroxyphenyl)-6-methyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate monohydrate
Acta Crystallographica Section E, 2008 There are three formula units in the asymmetric unit of the title compound, C14H16N2O4·H2O. Molecules are linked by N—H...O hydrogen bonds into dimers with the common R22(8) graph-set motif.
T. N. Guru Row +4 more
doaj +1 more source
Acta Crystallographica Section E: Crystallographic Communications, 2020 Fifteen 4-(2-methoxyphenyl)piperazin-1-ium salts containing organic anions have been prepared and structurally characterized. In the isostructural 4-chlorobenzoate and 4-bromobenzoate salts, C11H17N2O+·C7H4ClO2− (I) and C11H17N2O+·C7H4BrO2− (II), and the
Chayanna Harish Chinthal +5 more
doaj +1 more source
Physical Review D, 2019 Using the Born-Oppenheimer approximation, we show that exotic resonances, $X$ and $Z$, may emerge as QCD molecular objects made of colored two-quark lumps, states with heavy-light diquarks spatially separated from antidiquarks. With the same method we confirm that doubly heavy tetraquarks are stable against strong decays.
Maiani L., Polosa A. D., Riquer V.
openaire +3 more sources
Analysis of Hydrogen Bonds in Crystals
Crystals, 2016 The determination of crystal structures provides important information on the geometry of species constituting crystals and on the symmetry relations between them.
Sławomir J. Grabowski
doaj +1 more source