Results 261 to 270 of about 233,059 (308)
Crystal structure, supra-molecular and Hirshfeld surface analysis of piperazine-1,4-diium bis-(2,5-di-bromo-benzoate). [PDF]
Acta Crystallogr E Crystallogr CommunSubha V, Sathish M, Balakrishnan T.
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New England Journal of Medicine, 1977
The anion gap can be readily calculated from routine laboratory data, and although it has its widest application in the diagnosis of various forms of metabolic acidosis,1 , 2 it may sometimes provi...
M S, Oh, H J, Carroll
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The anion gap can be readily calculated from routine laboratory data, and although it has its widest application in the diagnosis of various forms of metabolic acidosis,1 , 2 it may sometimes provi...
M S, Oh, H J, Carroll
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Anion Resonances and Photoelectron Spectroscopy of the Tetracenyl Anion
The Journal of Physical Chemistry A, 2021The photoelectron spectroscopy of the tetracenyl anion using slow electron velocity-map imaging (SEVI) of cryogenically cooled ions is presented. The total photodetachment yield as a function of photon energy is used to reveal a rich manifold of anion excited states above the detachment threshold.
Cole R. Sagan, Etienne Garand
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Radical Anions, Radical‐Anion Salts, and Anionic Complexes of 2,1,3‐Benzochalcogenadiazoles
Chemistry – A European Journal, 2018AbstractBy means of cyclic voltammetry (CV) and DFT calculations, it was found that the electron‐acceptor ability of 2,1,3‐benzochalcogenadiazoles 1–3 (chalcogen: S, Se, and Te, respectively) increases with increasing atomic number of the chalcogen. This trend is nontrivial, since it contradicts the electronegativity and atomic electron affinity of the
Nikolay A. Pushkarevsky +12 more
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Angewandte Chemie, 2015
AbstractFirst evidence for the existence of free trifluoromethyl anion CF3− has been obtained. The 3D‐caged potassium cation in [K(crypt‐222)]+ is inaccessible to CF3−, thus rendering it uncoordinated (“naked”). Ionic [K(crypt‐222)]+ CF3− has been characterized by single‐crystal X‐ray diffraction, solution NMR spectroscopy, DFT calculations, and ...
Anton, Lishchynskyi +6 more
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AbstractFirst evidence for the existence of free trifluoromethyl anion CF3− has been obtained. The 3D‐caged potassium cation in [K(crypt‐222)]+ is inaccessible to CF3−, thus rendering it uncoordinated (“naked”). Ionic [K(crypt‐222)]+ CF3− has been characterized by single‐crystal X‐ray diffraction, solution NMR spectroscopy, DFT calculations, and ...
Anton, Lishchynskyi +6 more
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Anionic Iminoborane as Boryl Anion Synthon
Angewandte ChemieAbstract Classical iminoboranes, extensively investigated since the 1980s, are defined by 1,2‐dipolar reactivity in which the boron center remains exclusively electrophilic. Here, we report an anionic iminoborane, [Ar─B≡N─Flu] − , in which substitution at nitrogen with a ...
Yuyang Dai +3 more
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Geometrically diverse anions in anion–π interactions
Supramolecular Chemistry, 2011The role of different anion geometries in anion–π interactions is discussed. The chemistry described herein is different to the interaction of spherical cations with aromatics. The influence of different geometries makes selective anion recognition more complicated than respective cation sensing.
Giese, M. +4 more
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Anion−Anion Assembly in Crystal of Sodium Nitroprusside
The Journal of Physical Chemistry A, 2008The experimental charge density in the crystal of disodium pentacyanonitrosoferrate (sodium nitroprusside) dihydrate was analyzed in detail by means of Bader's atoms in molecules theory. It was shown that nitroprusside anion is involved in relatively strong self-interactions through the nitroso group.
Yulia V, Nelyubina +3 more
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Anion‐Anion Complexes Established between Aspartate Dimers
ChemPhysChem, 2020AbstractStable dimers aspartate‐aspartate have been studied in aqueous and gas phase through theoretical simulations. The polarizable continuum model (PCM) has been applied to simulate the effect of the hydration on monomers and complexes. The quantum theory of atoms in molecules (QTAIM) and the interacting quantum atoms (IQA) scheme has been used to ...
Matias O. Miranda +2 more
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