Experimental evidence concerning the electronic structure of the Nb6Cl12 2+ and Ta6Cl12 2+ clusters

1968 ◽  
pp. 692 ◽  
Author(s):  
W. van Bronswyk
Keyword(s):  
Electronic Structure ◽  
Experimental Evidence

Experimental evidence from liquid semiconductors

1977 ◽  
Vol 55 (11) ◽  
pp. 1961-1967 ◽  
Author(s):  
J. E. Enderby
Keyword(s):  
Electronic Structure ◽  
Alkali Metal ◽  
Experimental Evidence ◽  
Atomic Structure ◽  
Alkali Metals ◽  
The Other ◽  
Ionic Bonding ◽  
Liquid Semiconductors ◽  
Close Interaction ◽  
Semiconducting Alloys

Two broad types of liquid semiconducting alloys will be discussed, namely those involving alkali metals (e.g., the Li–Pb and the Cs–Au system) and those in which a chalcogen is involved (e.g., Cu–Te or Ni–Te). It will be argued that relatively simple ionic bonding schemes in alkali metal systems must be replaced by more complicated ones in chalcogen based alloys. The close interaction between atomic structure on one hand, and the electronic structure on the other will be emphasized.

Protonation of 4 H-Pyran-4-one and its Sulfur Analogues. MNDO Study

1984 ◽  
Vol 39 (3) ◽  
pp. 267-275 ◽  
Author(s):  
Mirjana Eckert-Maksić
Keyword(s):  
Electronic Structure ◽  
Experimental Evidence ◽  
Electron Density ◽  
Structural Features ◽  
Electron Drift ◽  
Strong Polarization ◽  
Appreciable Increase ◽  
Cyclic Conjugation ◽  
Molecular And Electronic Structure ◽  
Good Agreement

AbstractThe molecular and electronic structure of 4H-pyran-4-one and its mono- and disubstituted sulfur analogues (1-4) are studied by the MNDO method. The salient structural features are qualitatively reproduced and the trend of changes of geometric parameters is in good agreement with experiment. The charge distributions exhibit strong polarization due to the large π-electron drift toward the exo-heteroatom. The protonated conjugated acids are considered too. It is found that exo-heteroatom protonation is favoured by 60-80 kcal/mol over the attachment of the proton to the intraring heteroatom. This is in accordance with experimental evidence. It is rationalized by the higher electron density centered on the exo-heteroatom and the appreciable increase in aromatic cyclic conjugation taking place upon the exo-protonation.

Synthesis, Electronic Structure, and Catalytic Activity of Reduced Bis(aldimino)pyridine Iron Compounds: Experimental Evidence for Ligand Participation

2011 ◽  
Vol 50 (7) ◽  
pp. 3159-3169 ◽  
Author(s):  
Sarah K. Russell ◽  
Carsten Milsmann ◽  
Emil Lobkovsky ◽  
Thomas Weyhermüller ◽  
Paul J. Chirik
Keyword(s):  
Electronic Structure ◽  
Catalytic Activity ◽  
Experimental Evidence ◽  
Iron Compounds

The electronic structure of a β-diketiminate manganese hydride dimer

2020 ◽  
Vol 49 (41) ◽  
pp. 14463-14474
Author(s):  
Changjin Oh ◽  
Joëlle Siewe ◽  
Thao T. Nguyen ◽  
Airi Kawamura ◽  
Marco Flores ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Electronic Structure ◽  
Experimental Evidence ◽  
Density Functional ◽  
Multiple Bond ◽  
Functional Theory ◽  
Metal Metal

The absence of a metal–metal multiple bond in a dimeric manganese hydride catalyst supported by β-diketiminate ligands, [(2,6-iPr2PhBDI) Mn(μ-H)]2, was investigated with density functional theory in conjunction with experimental evidence.

Experimental evidence concerning the electronic structure of the Nb6Cl12 cluster

1967 ◽  
Vol 6 (3) ◽  
pp. 549-552 ◽  
Author(s):  
Raymond A. Mackay ◽  
Robert Fournier Schneider
Keyword(s):  
Electronic Structure ◽  
Experimental Evidence

The electronic structure of the borides M B 6

1954 ◽  
Vol 224 (1158) ◽  
pp. 336-347 ◽  
Keyword(s):  
Electronic Structure ◽  
Crystal Lattice ◽  
Experimental Evidence ◽  
Tight Binding ◽  
Bivalent Metal ◽  
Tight Binding Approximation ◽  
Metallic Conductivity ◽  
The Stability

The electronic structure of the metallic borides M B 6 is investigated theoretically by the tight-binding approximation. The stability of the crystal lattice is interpreted and it is pre­dicted that if M is a bivalent metal the crystal should be an insulator or photoconductor, but that if M has a valency greater than 2 the crystal should exhibit metallic conductivity. These predictions are consistent with the scanty experimental evidence.

scholarly journals Otto Stern and Wave-Particle Duality

2021 ◽  
pp. 519-545
Author(s):  
J. Peter Toennies
Keyword(s):  
Electronic Structure ◽  
Experimental Evidence ◽  
Short Introduction ◽  
Matter Waves ◽  
Structure And Dynamics ◽  
Wave Particle Duality ◽  
Massive Particles ◽  
New Applications ◽  
Atomic And Electronic Structure ◽  
He Atom

AbstractThe contributions of Otto Stern to the discovery of wave-particle duality of matter particles predicted by de Broglie are reviewed. After a short introduction to the early matter-vs-wave ideas about light, the events are highlighted which lead to de Broglie’s idea that all particles, also massive particles, should exhibit wave behavior with a wavelength inversely proportional to their mass. The first confirming experimental evidence came for electrons from the diffraction experiments of Davisson and Germer and those of Thomson. The first demonstration for atoms, with three orders of magnitude smaller wave lengths, came from Otto Stern’s laboratory shortly afterwards in 1929 in a remarkable tour de force experiment. After Stern’s forced departure from Hamburg in 1933 it took more than 40 years to reach a similar level of experimental perfection as achieved then in Stern’s laboratory. Today He atom diffraction is a powerful tool for studying the atomic and electronic structure and dynamics of surfaces. With the advent of nanotechnology nanoscopic transmission gratings have led to many new applications of matter waves in chemistry and physics, which are illustrated with a few examples and described in more detail in the following chapters.

scholarly journals Electron spectroscopy of ionic liquids: experimental identification of atomic orbital contributions to valence electronic structure

2019 ◽  
Vol 21 (35) ◽  
pp. 18893-18910 ◽  
Author(s):  
Richard M. Fogarty ◽  
Robert G. Palgrave ◽  
Richard A. Bourne ◽  
Karsten Handrup ◽  
Ignacio J. Villar-Garcia ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Ionic Liquids ◽  
Experimental Evidence ◽  
Molecular Orbital ◽  
Electron Spectroscopy ◽  
Atomic Orbital ◽  
Experimental Identification ◽  
Highest Occupied Molecular Orbital ◽  
Valence Electronic Structure

We provide original, independent and extensive experimental evidence for identification of the highest occupied molecular orbital for 37 ionic liquids.

scholarly journals Compelling experimental evidence of a Dirac cone in the electronic structure of a 2D Silicon layer

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Sana Sadeddine ◽  
Hanna Enriquez ◽  
Azzedine Bendounan ◽  
Pranab Kumar Das ◽  
Ivana Vobornik ◽  
...  
Keyword(s):  
Electronic Structure ◽  
Experimental Evidence ◽  
Silicon Layer ◽  
Dirac Cone ◽  
Compelling Experimental Evidence
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