Results 11 to 20 of about 15,805 (306)

Bonding situations in tricoordinated beryllium phenyl complexes [PDF]

open access: hybridJournal of Computational Chemistry, 2022
AbstractThe bonding situation in the tricoordinated beryllium phenyl complexes [BePh3]−, [(pyridine)BePh2] and [(trimethylsilyl‐N‐heterocyclic imine)BePh2] is investigated experimentally and computationally. Comparison of the NMR spectroscopic properties of these complexes and of their structural parameters, which were determined by single crystal X ...
Lewis R. Thomas‐Hargreaves   +4 more
openalex   +3 more sources

Beryllium bonding with noble gas atoms [PDF]

open access: bronzeJournal of Computational Chemistry, 2022
AbstractQuantum chemical calculations were carried out to investigate the nature of the bonding between a neutral Be3ring and noble gas atom. Electronic structure calculation for these complexes was carried out at different computational levels in association with natural bond orbital, quantum theory of atoms in molecules, electron localization ...
Lakhya J. Mazumder   +3 more
openalex   +3 more sources

The Importance of Strain (Preorganization) in Beryllium Bonds [PDF]

open access: yesMolecules, 2020
In order to explore the angular strain role on the ability of Be to form strong beryllium bonds, a theoretical study of the complexes of four beryllium derivatives of orthocloso-carboranes with eight molecules (CO, N2, NCH, CNH, OH2, SH2, NH3, and PH3 ...
Ibon Alkorta   +5 more
doaj   +4 more sources

Beryllium Bonding in the Light of Modern Quantum Chemical Topology Tools [PDF]

open access: green, 2017
We thank the Spanish MINECO, grant CTQ2015-6.5790-P, the FICyT, grant GRUPIN14-049, and the European Union FEDER for funding. F.J.-G.
José Luis Casals‐Sainz   +4 more
openalex   +4 more sources

Beryllium bonding: insights from the σ- and π-hole analysis [PDF]

open access: greenJournal of Molecular Modeling, 2020
Beryllium bonding is actually a subclass of secondary bonding. Similar to the case of halogen bonding, the σ- and π-holes on the Be atom of the monomers give in zeroth approximation the direction of electrophilic attack favorable to the formation of beryllium bonds.
M. E. Alikhani
openalex   +4 more sources

Beryllium Dimer—Caught in the Act of Bonding [PDF]

open access: bronzeScience, 2009
2 Be or Not 2 Be? The beryllium dimer is a rather simple-looking compound, bridging two atoms of the fourth-lightest element. Yet it has long posed a frustrating challenge to theorists, because, to a first approximation, chemical bonding models suggest that it should not exist.
Jeremy M. Merritt   +2 more
openalex   +3 more sources

Evaluation and comparison of shear bond strength of porcelain to a beryllium-free alloy of nickel-chromium, nickel and beryllium free alloy of cobalt-chromium, and titanium: An in vitro study

open access: diamondThe Journal of Indian Prosthodontic Society, 2017
Aims: The aim of this study was to evaluate and compare the shear bond strength of porcelain to the alloys of nickel-chromium (Ni-Cr), cobalt-chromium (Co-Cr), and titanium.
Ananya Singh   +2 more
doaj   +2 more sources

Beryllium Dimer Reactions with Acetonitrile: Formation of Strong Be−Be Bonds [PDF]

open access: yesMolecules, 2023
Laser ablated Be atoms have been reacted with acetonitrile molecules in 4 K solid neon matrix. The diberyllium products BeBeNCCH3 and CNBeBeCH3 have been identified by D and 13C isotopic substitutions and quantum chemical calculations.
Fei Cong   +4 more
doaj   +2 more sources

Disrupting bonding in azoles through beryllium bonds: Unexpected coordination patterns and acidity enhancement [PDF]

open access: hybridThe Journal of Chemical Physics, 2022
Although triazoles and tetrazole are amphoteric and may behave as weak acids, the latter property can be hugely enhanced by beryllium bonds. To explain this phenomenon, the structure and bonding characteristics of the complexes between triazoles and tetrazoles with one and two molecules of BeF2 have been investigated through the use of high-level G4 ab
M. Merced Montero‐Campillo   +4 more
openalex   +5 more sources

Interaction of BeX2 (X = H, F, Cl, OH) with pseudohalides: Characterizing beryllium bonding

open access: goldChemical Physics Impact
Herein, the formation of complexes of BeX2 (X = H, F, Cl, OH) with pseudohalides (Y = N3−, CN−, NCS−, OCN−) is investigated. The computational studies reveal the formation of stable X2Be−Y complexes in which the Be−Y interactions are characterized by the
Bijan K. Paul
doaj   +2 more sources

Home - About - Disclaimer - Privacy