Results 11 to 20 of about 209,205 (315)

Anion–anion and anion–neutral triel bonds

open access: yesPhysical Chemistry Chemical Physics, 2021
TrCl4−(Tr = Al, Ga, In, Tl) anion is able to engage in complexes with two Lewis bases: neutral NH3or the CN−anion through a triel bond. Complexation leads to two types of geometries: axial and equatorial.
Rafał Wysokiński   +3 more
openaire   +3 more sources

Anion⋅⋅⋅Anion Interactions Involving σ‐Holes of Perrhenate, Pertechnetate and Permanganate Anions [PDF]

open access: yesChemPhysChem, 2021
AbstractIn this communication experimental and theoretical results are reported affording strong evidence that interactions between electron rich atoms and the metal of tetroxide anions of group 7 elements are a new case of attractive and σ‐hole interactions.
Andrea Daolio   +4 more
openaire   +2 more sources

Design and Investigation of Superatoms for Redox Applications: First-Principles Studies

open access: yesMicromachines, 2023
A superatom is a cluster of atoms that acts like a single atom. Two main groups of superatoms are superalkalis and superhalogens, which mimic the chemistry of alkali and halogen atoms, respectively.
Celina Sikorska
doaj   +1 more source

Anion⋅⋅⋅Anion Coinage Bonds: The Case of Tetrachloridoaurate [PDF]

open access: yesAngewandte Chemie, 2021
AbstractInteractions in crystalline tetrachloridoaurates of acetylcholine and dimethylpropiothetine are characterized by Au⋅⋅⋅Cl and Au⋅⋅⋅O short contacts. The former interactions assemble the AuCl4− units into supramolecular anionic polymers, while the latter interactions append the acetylcholine and propiothetine units to the polymer.
Andrea Daolio   +5 more
openaire   +5 more sources

HCnH Anion Chains with n ≤ 8 Are Nonlinear and Their Permanent Dipole Makes Them Potential Candidates for Astronomical Observation

open access: yesMolecules, 2022
To be detectable in space via radio astronomy, molecules should have a permanent dipole moment. This is the plausible reason why HCnH chains are underproportionally represented in the interstellar medium in comparison with the isoelectronically ...
Ioan Bâldea
doaj   +1 more source

Dynamics of the Chemical Composition of Precipitation and Input of Elements in an Agricultural Area in Southern Bulgaria [PDF]

open access: yesBulgarian Journal of Soil Science, 2023
The study of the chemical composition of precipitation is an important factor in determining the input of elements and the total anthropogenic load in agroecosystems.
Tsetska Simeonova, Lyuba Nenova
doaj   +1 more source

Anion Colorimetric Chemosensor Based on a Benzimidazole-Functionalized BODIPY Derivative

open access: yesChemistry Proceedings, 2022
A BODIPY derivative bearing a benzimidazole unit at position 2 and an electron donor group (anthracene) at the meso position was synthetized and characterized by the usual spectroscopic techniques.
Raquel C. R. Gonçalves   +3 more
doaj   +1 more source

Anions coordinating anions: analysis of the interaction between anionic Keplerate nanocapsules and their anionic ligands [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2017
The interaction strength between Keplerates and anionic ligands depends on their pKa and solvation/desolvation effects.
Dolores Melgar   +3 more
openaire   +2 more sources

Superhalogen Anions Supported by the Systems Comprising Alternately Aligned Boron and Nitrogen Central Atoms

open access: yesFrontiers in Chemistry, 2022
Using DFT/(B3LYP/wB97XD/B2PLYPD) and OVGF electronic structure methods with flexible atomic orbital basis sets, we examined the series of polynuclear superhalogen anions matching the (BF3(BN)nF4n+1)– formula (for n = 1-10,13,18-20) containing alternately
Adrianna Cyraniak   +4 more
doaj   +1 more source

Development of ion chromatography methods for the determination of trace anions in ultra pure water from power plants [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
A suppressed ion chromatography (IC) technique, using a carbonate/hydrogen carbonate or a hydroxide eluent, has been evaluated as a monitoring tool for the detection of major anions (F-, Cl-, NO3-, PO43- and SO42-) in ultra pure water and condensed steam
Čičkarić Dragana Z.   +3 more
doaj   +1 more source

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